MS SQL Server :: Trigger Not Firing On Cascade Delete Table

Cascade Delete Trigger On Same Table
I have 4 colums in a table
Project, Sections,Tasks,Subtasks
Each subtask will haven a row.

I need to write a trigger when I delete a task it needs to delete all the subtasks relating to it. When I delete a section it needs to delete all the tasks and subasks relating to it. similarly for project.
This trigger for task-subtask works.
CREATE TRIGGER "[Deletetasktrigger]" ON [Tbl] FOR DELETE AS
SET NOCOUNT ON
/* * CASCADE DELETES TO '[Tbl B]' */
DELETE [tbl] FROM deleted, [Tbl] WHERE deleted.[task] = [Tbl].[task]
THis works fine. But when I do it for sections I get this error.

"Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32)" ..

Help Please!!!!!!

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Error W/ Trigger When Firing On 'DELETE XYZ WHERE IN (1,2,3)'
Hi,

Thanks for looking at this post. I currently have a trigger that fires when a row is inserted or deleted on a table. The idea behind the trigger is that when a row is inserted (representing a sub-category for images), the categories parent needs to have some work done on it. I currently have the trigger working just fine with single inserts and single deletes:

sql Code:

Original
- sql Code

CREATE TRIGGER smvcModImageManagerCategory_insert_delete_pdfManger_sync
ON smvcModImageManagerCategory
FOR INSERT, DELETE
AS
DECLARE @pdfId INTEGER;
DECLARE @parentPdfId INTEGER;
DECLARE @grandparentPdfId INTEGER;
DECLARE @parentId INTEGER;
DECLARE @grandparentId INTEGER;
DECLARE @tableName VARCHAR( 255 );

-- If I am being inserted or deleted, and I am not a top level
-- category, then my parent's pdf record needs to be set so that
-- the pdf file is updated
IF (SELECT id FROM Inserted) IS NOT NULL
BEGIN
SELECT @pdfId = (SELECT pdfManagerId FROM Inserted),
@parentId = (SELECT parentCategory FROM Inserted),
@grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory
WHERE id = @parentId);
END
ELSE
BEGIN
SELECT @pdfId = (SELECT pdfManagerId FROM Deleted),
@parentId = (SELECT parentCategory FROM Deleted),
@grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory
WHERE id = @parentId)
END

-- If I am not a top level category, set my parent's pdf to be
-- updated
IF @parentId <> -1
BEGIN
SELECT @parentPdfId = (SELECT pdfManagerId
FROM smvcModImageManagerCategory
WHERE id = @parentId);
UPDATE smvcModPdfManager SET data_last_updated = GETDATE()
WHERE id = @parentPdfId;
END
GO

CREATE TRIGGER smvcModImageManagerCategory_insert_delete_pdfManger_syncON smvcModImageManagerCategoryFOR INSERT, DELETEAS DECLARE @pdfId INTEGER; DECLARE @parentPdfId INTEGER; DECLARE @grandparentPdfId INTEGER; DECLARE @parentId INTEGER; DECLARE @grandparentId INTEGER; DECLARE @tableName VARCHAR( 255 ); -- If I am being inserted or deleted, and I am not a top level -- category, then my parent's pdf record needs to be set so that -- the pdf file is updated IF (SELECT id FROM Inserted) IS NOT NULL BEGIN SELECT @pdfId = (SELECT pdfManagerId FROM Inserted), @parentId = (SELECT parentCategory FROM Inserted), @grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory WHERE id = @parentId); END ELSE BEGIN SELECT @pdfId = (SELECT pdfManagerId FROM Deleted), @parentId = (SELECT parentCategory FROM Deleted), @grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory WHERE id = @parentId) END -- If I am not a top level category, set my parent's pdf to be -- updated IF @parentId <> -1 BEGIN SELECT @parentPdfId = (SELECT pdfManagerId FROM smvcModImageManagerCategory WHERE id = @parentId); UPDATE smvcModPdfManager SET data_last_updated = GETDATE() WHERE id = @parentPdfId; ENDGO

However, when I execute a statement like:

sql Code:

Original
- sql Code

DELETE FROM smvcModImageManagerCategory WHERE (smvcModImageManagerCategory.id IN ('86','87','88','90','91'))

DELETE FROM smvcModImageManagerCategory WHERE (smvcModImageManagerCategory.id IN ('86','87','88','90','91'))

I get an error because the virtual 'Deleted' table has more than one record in it. So, what I really need is advice on how to turn the above trigger into something that will be able to handle multiple deletes.

Thank you.

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Conflict Between (cascade) DELETE Trigger And Foreign Key Constrain
I'm trying to create relational database with some triggers in SQL Server 7.0, but it doesn't work as expected. Let's say that I have 'Office' database with two tables, 'Users' and 'UserRights' (userRights table should have much more rights, but that's not relevant for this problem):

CREATE TABLE [Users] (
[FS_Username] [nvarchar] (8) NOT NULL ,
[FS_Password] [nvarchar] (32) NOT NULL ,
CONSTRAINT [PK_Users] PRIMARY KEY NONCLUSTERED
(
[FS_Username]
) ON [PRIMARY]
) ON [PRIMARY]
GO

CREATE TABLE [UserRights] (
[FS_Username] [nvarchar] (8) NOT NULL ,
[FI_UserType] [int] NOT NULL CONSTRAINT [DF_UserRights_FI_UserType] DEFAULT (1),
[FI_AllowLogin] [int] NOT NULL CONSTRAINT [DF_UserRights_FI_AllowLogin] DEFAULT (1),
CONSTRAINT [PK_UserRights] PRIMARY KEY NONCLUSTERED
(
[FS_Username]
) ON [PRIMARY] ,
CONSTRAINT [FK_UserRights_Users] FOREIGN KEY
(
[FS_Username]
) REFERENCES [Users] (
[FS_Username]
)
) ON [PRIMARY]
GO

Foreign Key CONSTRAIN above is created by adding both tables to the diagram and defining relationship between these two tables FS_Username field, where 'Enable relationship for INSERT and UPDATE' option is turned ON. You can easily see this if you create diagram youself and insert these two tables in it.
Next to this, I created two triggers that should handle inserting/deleting rows in UserRights table as consequence of inserting/deleting rows in Users table:

CREATE TRIGGER InsertUserRights ON Users
FOR INSERT
AS
BEGIN
INSERT INTO UserRights (FS_Username) (SELECT FS_Username FROM Inserted)
END

CREATE TRIGGER DeleteUserRights ON Users
FOR DELETE
AS
BEGIN
DELETE UserRights WHERE FS_Username IN
(SELECT FS_Username FROM Users)
END

Now, when (manually) I insert row in Users table, UserRights table gets updated accordingly. HOWEVER, when I try to delete one or more entries from Users table, I get error report. For example, if you try to execute following two commands:

Insert Into Users (FS_Username, FS_Password) VALUES ('John', 's')

Delete from Users

... first command will succede, but second one will fail with message:

DELETE statement conflicted with COLUMN REFERENCE constraint 'FK_UserRights_Users'. The conflict occurred in database 'Office', table 'UserRights', column 'FS_Username'.
The statement has been terminated.

Does anyone know how to resolve this problem without loosing constrains and triggers ? (If I turn off 'Enable relationship for INSERT and UPDATE' option for relationship, things will work fine, but than I can make inconsistent data in UserRights table).

tnx a lot,
Dejan

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Copy And Delete Table With &"Foreign Key References(...,...) On Delete Cascade?
Hello:
Need some serious help with this one...

Background:
Am working on completing an ORM that can not only handles CRUD actions -- but that can also updates the structure of a table transparently when the class defs change. Reason for this is that I can't get the SQL scripts that would work for updating a software on SqlServer to be portable to other DBMS systems. Doing it by code, rather than SQL batch has a chance of making cross-platform, updateable, software...

Anyway, because it needs to be cross-DBMS capable, the constraints are that the system used must work for the lowest common denominator....ie, a 'recipe' of steps that will work on all DBMS's.

The Problem:
There might be simpler ways to do this with SqlServer (all ears :-) - just in case I can't make it cross platform right now) but, with simplistic DBMS's (SqlLite, etc) there is no way to ALTER table once formed: one has to COPY the Table to a new TMP name, adding a Column in the process, then delete the original, then rename the TMP to the original name.

This appears possible in SqlServer too --...as long as there are no CASCADE operations.
Truncate table doesn't seem to be the solution, nor drop, as they all seem to trigger a Cascade delete in the Foreign Table.

So -- please correct me if I am wrong here -- it appears that the operations would be
along the lines of:
a) Remove the Foreign Key references
b) Copy the table structure, and make a new temp table, adding the column
c) Copy the data over
d) Add the FK relations, that used to be in the first table, to the new table
e) Delete the original
f) Done?

The questions are:
a) How does one alter a table to REMOVE the Foreign Key References part, if it has no 'name'.
b) Anyone know of a good clean way to get, and save these constraints to reapply them to the new table. Hopefully with some cross platform ADO.NET solution? GetSchema etc appears to me to be very dbms dependant?
c) ANY and all tips on things I might run into later that I have not mentioned, are also greatly appreciated.

Thanks!
Sky

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On Delete Cascade && Hierarchical Table
for MS SQL 2000
I am trying to do a hierarchical table and i want to add a ON DELETE CASCADE

CREATE TABLE [dbo].[Users](
[id_Users] [int] IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED,
[id_UsersSup] [int] NULL,
[Users] [nvarchar] (100) NOT NULL
) ON [PRIMARY]

ALTER TABLE [dbo].[Users] ADD
CONSTRAINT [FK_Users_Sup] FOREIGN KEY
(
[id_UsersSup]
) REFERENCES [Users] (
[id_Users]
)
ON DELETE CASCADE

but MS SQL refuse to create the foreign key
even if there is 4 levels under the deleted id_Users I want to delete all the rows on all levels under

thank you for helping

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How To Alter The Table With Delete/update Cascade Without Recreating The Table
I have contract table which has built in foreign key constrains. How can I alter this table for delete/ update cascade without recreating the table so whenever studentId/ contactId is modified, the change is effected to the contract table.

Thanks

************************************************** ******
Contract table DDL is

create table contract(
contractNum int identity(1,1) primary key,
contractDate smalldatetime not null,
tuition money not null,
studentId char(4) not null foreign key references student (studentId),
contactId int not null foreign key references contact (contactId)
);

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Remove Cascade Update And Delete From Table
hello, once upon a time when i created my db (originally in access then used the conversion tool, which i now know is wrong!) i thought it would be an amazing idea to have cascading updates and deletes, however it turns out now this is exactly not what i want! if i leave them in then it throws errors when i delete records out of my stock table as related records are in the order_line table here is the code (well i think so, im not the best at sqlserver as you probably can tell already) that im using if anyone can help or point me in the right direction that would be great, thanks USE [nashdfDB1]GO/****** Object: Table [dbo].[tbl_stock] Script Date: 07/13/2007 02:52:14 ******/SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGOSET ANSI_PADDING ONGOCREATE TABLE [dbo].[tbl_stock]( [Stock_ID] [int] IDENTITY(1,1) NOT NULL, [cat_id] [int] NOT NULL CONSTRAINT [DF__tbl_stock__cat_i__15502E78] DEFAULT ((0)), [sub_cat_id] [int] NULL CONSTRAINT [DF__tbl_stock__sub_c__164452B1] DEFAULT ((0)), [location] [int] NULL CONSTRAINT [DF__tbl_stock__locat__173876EA] DEFAULT ((0)), [n_or_sh] [varchar](50) NULL, [title] [varchar](255) NULL, [description] [varchar](255) NULL, [size] [varchar](50) NULL, [colour] [varchar](50) NULL, [cost_price] [decimal](9, 2) NULL CONSTRAINT [DF__tbl_stock__cost___182C9B23] DEFAULT ((0)), [selling_price] [decimal](9, 2) NULL CONSTRAINT [DF__tbl_stock__selli__1920BF5C] DEFAULT ((0)), [qty] [varchar](50) NULL, [date] [datetime] NULL CONSTRAINT [DF__tbl_stock__date__1A14E395] DEFAULT (getdate()), [condition] [varchar](255) NULL, [notes] [varchar](255) NULL, [visible] [bit] NULL CONSTRAINT [DF__tbl_stock__visib__1B0907CE] DEFAULT ((1)), [picture1] [varchar](50) NULL, [picture1_thumb] [varchar](50) NULL, [picture2] [varchar](50) NULL, [picture2_thumb] [varchar](50) NULL, [picture3] [varchar](50) NULL, [picture3_thumb] [varchar](50) NULL, [picture4] [varchar](50) NULL, [picture4_thumb] [varchar](50) NULL, [display_price] [varchar](50) NULL, [created_by] [varchar](50) NULL, [buying_in_recipt] [varchar](255) NULL, CONSTRAINT [tbl_stock$PrimaryKey] PRIMARY KEY CLUSTERED ( [Stock_ID] ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY] GO
SET ANSI_PADDING OFF

Regards
Jez

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Importing Data In Datatable Using SSIS Package Trigger On Insert Is Not Firing On That Table
Hi
I am Importing data in datatable using SSIS package . I made trigger on that table on insert. The trigger on insert is not firing on that table
Please help
Thanks
CP

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Trigger Firing And Not Firing
I have a trigger on a table that just updates a last_modified_date and this works fine on our production server. Now I have to update some data and I do not want the trigger to fire. I cannot disable or drop the trigger because the productions systems needs the trigger. Anyone an idea of how to solve this problem?

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Delete SP Not Firing?
I cannot get this event to fire. I am using TextBox9 to see if statements are processed and it never fills so it appears the Button4_Click never happens. Any ideas?
Thank you,
<asp:Button ID="Button4" runat="server" OnClick="Button4_Click" Text="Delete Submission" /> protected void Button4_Click(object sender, EventArgs e) { string CompanyDeleteID = TextBox10.Text; SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["localhomeexpoConnectionString2"].ConnectionString); SqlCommand cmd = new SqlCommand("DeleteSubmission", con); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@C_ID", CompanyDeleteID); TextBox9.Text = "SP completed";
}

PROCEDURE dbo.DeleteSubmission @C_ID intASBEGIN DELETE FROM tblCompanyInfo_Submit WHERE C_ID = @C_ID
DELETE FROM tblStoreStudioSubmit WHERE C_ID = @C_ID
DELETE FROM tblContractorSubmit WHERE C_ID = @C_ID RETURNENDWHERE CD_ID = @C_IDRETURN

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Only One Of My SQL Delete Statement Are Firing
Hey guys...
I am trying to tidy up my code a bit and have one SQL command (Sub class) to call when needing to insert, update, delete and select.
I have got one class I am testing with that delete from a table support_ticket and then calls RunSQL() again to delete the corresponding tickets in Support_Reply.
however it only seems to want to delete from one table at a time...as i commented out the first sql and it worked and the second fires...but if the first one is active it doesnt fire.
Do anyone on the forum know why this has happened?

Sub DeleteUserTicket(sender as Object, e as EventArgs)
Dim strSQL1 = "DELETE FROM Support_Ticket WHERE (TicketID = " & txtticketID & ")"
RunSQL(strSQL1)
strSQL1 = "DELETE FROM Support_Reply WHERE (TicketID = " & txtticketID & ")"
RunSQL(strSQL1)
End Sub
'One class to run the sql statements for the entire page this will reduce in repetitve code as well as reduce code size
Sub RunSQL(strSQL)
Dim objCmd As SqlCommand
Dim sqlConn = New SqlConnection(strConn)
objCmd = New SQLCommand(strSQL, sqlConn)
objCmd.Connection.Open()
'Check that the rows can be deleted if not then return a error.
Try

objCmd.ExecuteNonQuery()
response.redirect("ticketsystemtest2.aspx")
Message.InnerHtml = "<b>Ticket " & txtticketID & " Closed</b> <br/>"
Catch ex As SqlException
If ex.Number = 2627 Then
Message.InnerHtml = "ERROR: A record already exists with " _
& "the same primary key"
Else

Message.InnerHtml = "ERROR: Could not update record, please " _
& "ensure the fields are correctly filled out <br>" & ex.Message & " " & ex.Number
Message.Style("color") = "red"
End If
End Try
objCmd.Connection.Close()
sqlConn = nothing
objcmd = nothing
End Sub

cheers

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Can't Cascade Delete
I have a Sql Server 2005 table with 3 fields, an ID field (primary key), a parent ID field, and Name. The parent ID references the ID field (foreign to primary - many to one) within the same table so that records can reference their parent. I would like to place a cascade delete on the ID field so that when the primary ID is removed it will automatically remove all those records with a parent ID that match. Sql server does not allow me to establish this cascade delete.I was considering a trigger instead but only know how tio use the AFTER paramter and not an alternative. Thanks

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"... On Delete Cascade ..."
Guys, could anyone tell me if MSSQL Server 7 has 'on delete cascade' option when creating a foreign key constraint or something similar to it. I'd really like MSSQL to remove all dependent records (child records) automatically from one table when I'm deleting a parent record from another table. I know that I can do it via trigger, but the FK constraint should be removed or disabled. I would really appreciate your help. Thank you very much.

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Cascade Delete
hi, I know that I can use trigger to delete any related records in other table, for example Ihave 3 tables (A,B,C)
The primary key of A is a FK in B, and C table, so when I delete any record from Table A, with triggers I can delete related records in B and C tables. My Question is what if I delete a record from C, how can I prevent that from happening . I only need to allow deletion from the parent table.
Thanks for your help

Ali

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Cascade Delete
hey all,
Is there anyway to cascade delete from a table with foreign key constraint?
I mean if i delete a row from the parent table, all the dependent table rows should also be deleted..

thank you in advance..
i can write it through stored procedure..but..any other means..

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Delete Cascade
Hi all

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Delete Cascade
Hi all

i need delete cascading operation in my database,how can i get this.any one help me

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Cascade Delete
I am a C# programmer also acting as the dba for a SQL Server project. I have a table called Folder that has child records in a table called FolderItems. When a Folder is deleted I want the FolderItems to be deleted. I know how to accomplish via code, but I would prefer to have SQL Server perform the delete just in case a folder is deleted via SQL Management Studio or other method.

Is a trigger the way to go about this? I know how to create triggers For Delete, but I just wondering is this the best method to create a Cascade delete or does SQL have any built in "Cascade" delete features.

I am using SQL Server 2005 if this matters.

Thank you,

Corby Nichols
Flying Elephant Software

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Delete Cascade

Hi,

I want to know more about delete cascade feature of SQL Server 2005.

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ON DELETE CASCADE
Helle people. The question is:
I have two tables: Directories and SubDirectories. SubDirectories table has foreign key for DirectoryId. Now if I define this key with ON DELETE CASCADE attribute then in case of I delete a Directory record, all SubDirectory records will also be deleted. But if I have only one table Directories that have field named ParentId and in this field I save an Id of parent direcory. Can I define a parentId field as a foreign key to the same table and define it with ON DELETE CASCADE? Will it work too? Thanks

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Trigger Not Firing
OK, I'm at a loss..it must be staring me right in the face.

I have a junction table that relates 2 tables, with a unique key of the composit of the 2 keys. There is also an indicator that says 1 relationship between the 2 tables is "primary" and there should only be one of those. So I figured a trigger to take care of it...but I can't seem to get it working...I wrote sample sql to mimic the inserted table as well, and it seems correct, but the trigger just does not fire.

Any ideas?

CREATE TABLE [dbo].[PIF_MEP99] (
[PIFRecID] [int] NOT NULL ,
[MEPRecID] [int] NOT NULL ,
[PrimaryInd] [char] (1) NOT NULL
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[PIF_MEP99] WITH NOCHECK ADD
CONSTRAINT [PIF_MEP99_PK] PRIMARY KEY CLUSTERED
(
[PIFRecID],
[MEPRecID]
) ON [PRIMARY]
GO

INSERT INTO PIF_MEP99(PIFRecID, MEPRecID, PrimaryInd)
SELECT 1,1,'Y' UNION ALL
SELECT 2,1,'N' UNION ALL
SELECT 3,2,'N'
GO

CREATE TRIGGER dbo_PIF_MEP99_tr_Rule1 ON dbo.PIF_MEP99
FOR UPDATE, DELETE
AS
SET NOCOUNT ON

-- Rule 1: Prevent and MEP from having more than 1 PIF as Primary

IF Exists ( SELECT * FROM inserted i
INNER JOIN PIF_MEP99 p
ON i.MEPRecID = p.MEPRecID
AND i.PrimaryInd = 'Y'
AND p.PrimaryInd = 'Y')
BEGIN
ROLLBACK TRAN
RAISERROR 500003 'Attempting to Insert 2 Primary PIFs for an MEP'
END
GO

SELECT * FROM PIF_MEP99
GO

SELECT * FROM (SELECT 4 AS PIFRecID,1 AS MEPRecID,'Y' AS PrimaryInd) AS i
INNER JOIN PIF_MEP p
ON i.MEPRecID = p.MEPRecID
AND i.PrimaryInd = 'Y'
AND p.PrimaryInd = 'Y'
GO

BEGIN TRAN
INSERT INTO PIF_MEP99 (PIFRecID, MEPRecID, PrimaryInd) SELECT 4,1,'Y'
COMMIT TRAN
GO

SELECT * FROM PIF_MEP99
GO

SELECT * FROM (SELECT 5 AS PIFRecID,1 AS MEPRecID,'Y' AS PrimaryInd) AS i
INNER JOIN PIF_MEP p
ON i.MEPRecID = p.MEPRecID
AND i.PrimaryInd = 'Y'
AND p.PrimaryInd = 'Y'
GO

DROP TABLE PIF_MEP99
GO

Brett

8-)

Hint: Want your questions answered fast? Follow the direction in this link
http://weblogs.sqlteam.com/brettk/archive/2005/05/25/5276.aspx

Add yourself!
http://www.frappr.com/sqlteam

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Trigger Not FIRING With BCP
Hi,

Anyone got an idea why this does not work. I have a trigger that is supposed to fire as an INSERT is done on a table. If I manually insert (insert into....), the trigger fires. If I use BCP to insert, the trigger DOES NOT FIRE.....

Davy

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Trigger Not Firing ...
Afternoon All ...

I have a trigger on a table that works great when a single record is updated BUT it seems not to fire when I try to do a bulk update as in ...

update TableA

set field3 = ms.field3
FROM TableA as ta,
#ms as ms
where field1 = ms.field1
and field2 = ms.field2

Why does this happen and how can I correct it.

Thanks!

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Trigger Not Firing

I have build a SQL Trigger that fires on the update of a specific column; this works perfectly when I test using SQL or even the SQL Server GUI but when I do the update from .NET it doesn€™t fire.

I have a dataset that gets modified and then I call sqlDataAdapter.Update(Dataset) - the row is successfully modified in the database but alas - the trigger isn't fired.

Any help would be appreciated.

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Delete Trigger On Same Table
I have 4 colums in a table
Project, Sections,Tasks,Subtasks
Each subtask will haven a row.

I need to write a trigger when I delete a task it needs to delete all the subtasks relating to it. When I delete a section it needs to delete all the tasks and subasks relating to it. similarly for project.
This trigger for task-subtask works.
CREATE TRIGGER "[Deletetasktrigger]" ON [Tbl] FOR DELETE AS
SET NOCOUNT ON
/* * CASCADE DELETES TO '[Tbl B]' */
DELETE [tbl] FROM deleted, [Tbl] WHERE deleted.[task] = [Tbl].[task]
THis works fine. But when I do it for sections I get this error.

"Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32)" ..

Help Please!!!!!!

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How Can I Use Cascade Delete For The For The Following Situation.
Hi, I have the following tables:
Categories {Category_ID, Column2, ...}
Articles { Article_ID, Category_FK, Column3, ...}
Discussions {Discussion_ID, Article_FK, Column3, ...}
Now, all what I have is just category_ID value (Let us say 3), how can I do cascade delete to delete category's record that its ID = 3 and delete all articles and all discussions that found in that category?

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Foreign Key On Delete Cascade
Hello,If I have table the following table structure:Table Customer ( CustomerId Numeric(10,0) Not Null, ... )Table CustomerOrders ( CustomerOrderId As Numeric(10,0) Not Null,CustomerId Numeric(10,0) Not Null,CustomerRefId Numeric (10,0) NotNull, ... )Now if I try to apply the following Foreign Keys, listed below, thefollowing error is displayed:"May cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION orON UPDATE NO ACTION, or modify other FOREIGN KEY constraints."ALTER TABLE CustomerOrdersADD CONSTRAINT FK_CustomerOrders_A FOREIGN KEY (CustomerId)REFERENCES Customer (CustomerId) ON DELETE CASCADEGOALTER TABLE CustomerOrdersADD CONSTRAINT FK_CustomerOrders_B FOREIGN KEY (CustomerRefId )REFERENCES CustomerRef (CustomerRefId ) ON DELETE CASCADEIn ORACLE this works fine, I consider this to be a bug in MSS 2k. Doesanybody know if microsoft is planning on changing this or if it works in"Yukon"?Thanks,Rob PanoshAdvanced Software Designs

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Cascade Delete Question
I am attempting to clarify how the cascade delete works. For example I have a Parent table and two child tables used for lookup that have the ID_FK = ID_PK from the Parent table.

tblUsers
---------------
ID_PK
Fname
Lname
...

tblUser_Phone
----------------
ID_FK
Phone
...

tbUser_Email
----------------
ID_FK
Email
...

If I needed to delete all records from tblUser_Phone would this delete my USER entry from the parent table tblUsers if I have cascade delete enabled?

Thanks in advance.

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Is There On Delete Cascade In Sql Server?????
Hi everyone,

I would to make a cascade deletion. I dont know how to do it in SQLServer.

Thanks very much.

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Cascade Delete,any Limits
Hi ,
I have 4 GB db with 6 tables,

table A parent of table B with cascade
update,delete

table B parent of C,D,E,F with cascade
update,delete

Today I deleted range of values(7000 rows) from table A, but NOT ALL data

deleted from B,C,D,E,F

Is any limitation for cascade delete

Db set to simple recovery, no errors deleting data

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Cascade Delete And Update In SQL 7.0
Is it possible to cascade update and delete while DRI remains there ? That
is without deleteing refrential integrity. If anyone have example of cascade delete and Update using Pubs or Northwind Example , i'll be really obliged.

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Cascade Delete/update
CAn some one tell me how to program a cascade delete/update trigger

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Cascade Delete In Mssql 7.0?
Hello:

One of my developers asked if there is a way in mssql 7.0 to have a
cascade delete.

Since triggers are fired after an action, I guess the only way to do this
would be to write a stored procedure where the
child(children) table rows are deleted first folowed by those of the
parent.
Does any one know of a way to perform a cascade delete other than by
writing your own stored proc?

Any information you can provide will be greatly appreciated. THanks.

David Spaisman

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Performing A Cascade Delete
How to delete a record from a parent table, all relating records in the child tables should also delete.
How to do it by MSSQL 7.0

ANB

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Cascade Delete Problem..
Hi,
I have a Configuration Table tblConfig with 45 fields-
PK_Config_Id
ConfigCreatedOn
ConfigEditedOn
ConfigStartDate
ConfigEndDate
ConfigFor
€¦.
€¦.
€¦.

And an Employee table tblEmployee
PK_Emp_Id
EmpName
€¦.
€¦.
€¦.

I would create a Configuration and then apply this config to some Employees €”
So, I created a table tblEmployee_Config with 2 fields
FK_Config_Id
FK_Emp_Id

But I MAY need to change(Edit) few of the properties(fields) of the Configuration record associated to an emp. Therefore I need all the fields of tblConfig table along with employee key in tblEmployee_Config
So, I modified tblEmployee_Config to €”
FK_Emp_Id
FK_Config_Id
ConfigCreatedOn
ConfigEditedOn
ConfigStartDate
ConfigEndDate
ConfigFor
€¦.
€¦.
€¦.
i.e. putting all the fields of the tblConfig into tblEmployee_Config along with emp key

But instead of having 2 almost similar tables (tblConfig and tblEmployee_Config), I merged both the tables into 1 table having Configurations as well as Employees associated to Configs as€”
PK_Config_Id
FK_Emp_Id
FK_Config_Id
ConfigCreatedOn
ConfigEditedOn
ConfigStartDate
ConfigEndDate
ConfigFor
€¦.
€¦.
€¦.     Where FK_Emp_Id and FK_Config_Id would be NULL for Configurations.

Like----
PK_Config_Id         FK_Emp_Id        FK_Config_Id           AllowBrks       WorkHrs
    1                              NULL                      NULL                        Yes                    9
    2                                100                            1                             Yes                    9
    3                                101                            1                              No                    8

Here record 1 is a Configuration and records 2 and 3 are Emps records that are associated to Config 1.

Now my question is €“
1. Is it correct if I put a relation like
Primary key                            Foreign Key
tblEmployee_Config                 tblEmployee_Config
PK_Config_Id                         FK_Config_Id

2. Can I perform cascade delete on the same table tblEmployee_Config such that€“
When record 1 is deleted, records 2 and 3 should also get deleted because they refer to the first record?

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Relationships: Cascade Delete
Hi,

I Use SQL Server 2005 Express edition. I have a few tables, which are inter-related. For e.g. I have a project table (ProjectID, Name, ...)

I also have a Project invoice table, in which ProjectID is referred as Foreign key.

Now, I want all the rows in Project invoice (child) table table to be deleted (for a particular ProjetID), if I delete the coresponding ProjectID in Projects (parent) table. If I use the 'on delete set null' or 'on delete cascade' constraint, only the ProjectID (in child table) is nullified whereas rest of the columns have data.

Is there any way out, where the whole ROW (not just that field) is deleted? Or, is it that this can be achieved only by some stored procedure / external program?

Thanks!

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Cascade Delete Problem
Hi all, I've been reading for a couple of weeks but this is my first question so please be gentle with me.

I'm pretty new to SQL Server, though I've worked with Access for years. I've got four tables (I'm simplifying) and I need to set up cascade deletes between them. I understand how to create foreign keys and all that, but SQL Server is telling me it can't create my keys because it will create multiple cascade paths. I understand that too, I just need to find a way around it. Here are the tables...

dbo.JOBS
Job_Number

dbo.COLUMNS
JOBS_Job_Number
Column_Number

dbo.ROWS
JOBS_Job_Number
Row_Number

dbo.GRID_DATA
JOBS_Job_Number
Column_Number
Row_Number
Data

Currently I have keys set to cascade delete between JOBS>COLUMNS and JOBS>ROWS so that when the user deletes a job, the columns and rows for that job are deleted as well. No problem there.

If the user deletes a column, I have to delete all the grid data for that column and job. Same with rows. So I tried to establish cascade deletes between COLUMNS>GRID_DATA and ROWS>GRID_DATA and that's where I got in trouble. I assume the reason is that if the user deletes a job, it's going to delete the columns and rows, and I've got multiple cascade paths coming from COLUMNS and ROWS to GRID_DATA. I get it.

The question is, what can I do about it? I don't have a cascade delete between JOBS>GRID_DATA, although I do want that behavior, but I was assuming it just would flow through COLUMNS or ROWS. I haven't bothered to add that key as I'm guessing that would just make the situation worse. Anyone got any advice for me on this one?

Thanks!
Ron Moses
ConEst Software Systems

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Trigger Not Firing On Update
hi,Here's the scenario1) I am running a DTS job to fetch some rows from Oracle2) The job populates the Table A as step 13) Then it fires a update statement which updates the rows in Table B.Here's the statementUPDATE Table B SETtime = case when (select median from Table A where sno = sno and TableA.stno=70 ) is null then timeelse (select median from Table A where Table B.sno = Table A.sno andTable A.sstno=70) end ,endWHERE EXISTS (select sstno from Table A where Table B.sno = TableA.sno)There is a trigger on table B which should fire as soon as thevalue>15.When I fire the update statement direcly with a higher value than itfires the trigger.update table B set time=17 where b.sno=1000But not when the job runs...I am puzzled.Thoughts?AJ

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Trigger Not Firing, DTS Load
I have a table that is getting refreshed from DB2 using DTS (I believe the DBA is doing a DELETE and an APPEND). I have a trigger on this table ON APPEND, INSERT, but the trigger never fires. When I manually update the data, the trigger fires no problem...

Is DTS capable of updating a SQL Server table without firing the trigger?

I'm an Oracle guy, and this is my 1st experiences with SQL Server, so I'll put the code here and if you want to point out any bad practices (such as the way i converted the DB2 TIMESTAMP to a SQL Server DATETIME , please do.

FYI, the DB2 TIMESTAMP is getting loaded into the SQL Server table as a VARCHAR(26)
Carl

CREATE TRIGGER trig_SAWakeUp ON tsnro
FOR INSERT, UPDATE
AS
DECLARE @snro_stus char(10)
DECLARE @snp_sht_dtm as datetime
SELECT @snro_stus = snro_stus
FROM tsnro
IF (RTRIM(@snro_stus) = 'ASSIGNED') OR (RTRIM(@snro_stus) = 'REFRESHED')
BEGIN
SELECT @snp_sht_dtm = CONVERT(DATETIME, SUBSTRING(evt_dtm,1,19))
FROM tsnro

INSERT INTO TSNP_SHT_DTM (SNRO_STUS, SNP_SHT_DTM )
VALUES (@snro_stus, @snp_sht_dtm)
END
ELSE
BEGIN
INSERT INTO TSNP_SHT_DTM ( SNRO_STUS, SNP_SHT_DTM )
VALUES (@snro_stus, @snp_sht_dtm)
END

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Insert Trigger Sometimes Not Firing
hi all

i have an issue with an insert trigger sometimes not firing.

here is the trigger

CREATE TRIGGER Insert_tPABillToAddr ON [dbo].[tPA00175]
FOR INSERT
AS

INSERT into tPABillToAddr
(
chrJobNumber
)

SELECT chrJobNumber
FROM inserted

when the user enters a new this table is to insert one column into another table. the thing is, sometimes it does not do the insert. any ideas as to why? it is a very uncommon thing, lets say once out of every 20 inserts does it fail. but it is crucial that it never fails.

thanks

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Prevent Trigger From Firing
Hi,

I have an update tigger on one of my tables.
I want to fire an Update SQL but somehow prevent trigger from firing.

Any Ideas..

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Artificially Firing A TRIGGER
I have a table (table 1) that has a trigger attached to it, which sends data to table 2. Both tables are attached to an appliction.

In theory, the trigger populates table 2 (from table 1) from the data entered from the user interface application.

But when I import data from the backend

via DTS into Table 1, the trigger does not send the data to table 2.

What do I need to do ???

Thank you in advance !!

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Update Trigger Not Firing.

Hi All,

I have an update trigger which stores the date a record was updated by a GIS app.

It worked in SQL2000 but when I copied and pasted the code into SQL2 its not firing. Any Ideas? Below is the code.

Create TRIGGER [dbo].[Date_Entered] ON [dbo].[ZONING_OP]

FOR UPDATE

AS

UPDATE [dbo].[ZONING_OP]

Set Date_Entered = GetDate()

Where ID = (Select ID from Inserted)

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SQL Server 2005 No Cascade On Delete
I am developing an application with ASP .NET 2.0 using SQL Server 2005. I have a very detailed set of relational tables I would like to use to store my data, however I would like to use the built in Membership functionality of .NET 2.0.What I've done is created MembershipProvider that on user creation links the aspnet_Users table to my custome User table.UserFK guid aspNetId int userIdI then use my own userId to link into other data which uses their PKs to link to other tables, etc, etc like any good relational DB should.My question is when I delete a user using the ASP .NET interface I get a contraint error because my User table references the aspnet_Userts.UserId. I initially wanted to toss Cascade On Delete on my tables which would take care of my problem. I was shocked to find out Sql Server 2005 doesnt support Cascades.. and its suggested that Triggers be used instead (ill durned if im gonna make triggers for all my tables)My question is, what is the best practice in deleting from tabled linked with PK/FK relationships? There MUST be a good way to handle this.thanks

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How Can I Find Out Relationships With Cascade Delete
I'm using Management Studio Express, is there a way to find out what relationships of a database have cascade delete set to true?
Also is there a way to change the settings (properties) of a relattionship without having to delete it and add it back?

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Update And Delete Rule - Cascade
Hi, I have a database which saves data about bus links. I want to provide a information to passenger about price of their journay. The price depends on three factors: starting busstop, ending busstop and type of ticket (full, part - for students and old people, ...).
So I created a table with three foreign key constraints (two for busstops and one for type).
When the busstop is deleted or type of ticket I want all data connected with it to be deleted automatically. I wanted to use cascade deleting.
But I receive a following exception: Introducing FOREIGN KEY constraint 'FK_TicketPrices_BusStops1' on table 'TicketPrices' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
How can I achieve my task? Why should it cause cycles or multiple cascade paths?

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MS ACCESS - ON DELETE CASCADE Problem
I cannot execute my sql to create a table with ON DELETE CASCADE option.Here is my sql:CREATE TABLE Employees (Name Text(10) not null, Age number,CONSTRAINT pkEmployeesPRIMARY KEY (Name)); <--- This is ok!CREATE TABLE CanTake (Name Text(10) not null, Make Text(10) not null,CONSTRAINT pkCanTakePRIMARY KEY (Name, Make),CONSTRAINT fkCanTakeFOREIGN KEY (Name) REFERENCES EmployeesON UPDATE CASCADE <--- MS-ACCESS says 'syntax error'ON DELETE CASCADE);When I didn't include ON UPDATE CASCADE ON DELETE CASCADE in sql, it works(but that's not what I want). Why? Could anyone suggest me?Thank you.--Message posted via http://www.sqlmonster.com

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