I'm a newbie to sql server and this may be a really dumb question for
some you. I'm trying to find some examples of sql server triggers that
will set columns (e.g. the created and modified date columns) if the row
is being inserted and set a column (e.g. just the modified date column)
if the row is being updated.
I know how to do this in oracle plsql. I would define it as a before
insert or update trigger and reference old and new instances of the
record. Does sql server have an equivalent? Is there a better way to do
this in sql server?
Thanks
eric
this is what i do in oracle that i'm trying to do in sqlserver...
CREATE OR REPLACE TRIGGER tr_temp_biu
before insert or update
on temp
referencing old as old new as new
for each row
begin
if inserting then
:new.created_date := sysdate;
end if;
:new.modified_date := sysdate;
end tr_temp_biu;
I have converted Access database to sql express. Access Database had AutoNumber FIelds for which trigger was generated by Upsizing wizard.
Now when I import data from client the autonumber field value changes because trigger is fired which distroys all links
I want to modify trigger so that it generates new number only when it is not supplied in a insert command.
Please help. Code is given below. Also suggest how to save because when I use save, it asks for a new .sql file name and a new file is generated instead of modifying the same trigger
set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO ALTER TRIGGER [dbo].[T_AcControlLimit_ITrig] ON [dbo].[AcControlLimit] FOR INSERT AS SET NOCOUNT ON DECLARE @randc int, @newc int /* FOR AUTONUMBER-EMULATION CODE */ /* * RANDOM AUTONUMBER EMULATION CODE FOR FIELD 'IntAcControlCode' */ SELECT @randc = (SELECT convert(int, rand() * power(2, 30))) SELECT @newc = (SELECT IntAcControlCode FROM inserted) UPDATE AcControlLimit SET IntAcControlCode = @randc WHERE IntAcControlCode = @newc
Within a trigger, is it possible to modify a row before it is inserted in SQL Server 7? I need to update two columns before the row is inserted by the trigger.
I have a 3rd party program that creates some tables in my sql server2005 database, then it does inserts on the tables. Is there a way Icould create a system level trigger that would immediately andautomatically modfiy the table structure after the table is created(hopefully before the inserts occur)? I need to change a field fromnumeric(5, 0) to numeric(15, 0).Thanks,Roger
I am absolutely stumped here. I have the SQL server management studio loaded up, the trigger in question highlighted. I right click and select "Modify". I see the trigger code in a window, i make my modifications, and hit ctrl-f5. It compiles without any errors. Now I hit CTRL-F4, and it asks me to save to a file. (Now the original trigger was not saved 'as a text file' - that I can find anywheres on my hard drive. I save it anyways, and the editing window is gone.) I right click on the trigger and select "modify" and the code is back to the way it was. I just spent the last two hours trying to modify this - surely there is a way to modify a trigger?
CREATE ASSEMBLY uploads an assembly that was previously compiled as a .dll file from managed code for use inside an instance of SQL Server.
What I want to do here is enable/create a "MODIFY" option on CLR-based objects in Object Explorer.
Option is only supported for assemblies who's source code has been previously loaded into DB via ALTER ASSEMBLY Upon electing the option, source code gets displayed in editor. Users alters managed source User clicks the "Execute" button in the editor onClick of "Execute" performs following
Alters managed source (not sure if this can be done in the system tables, may have to save .cs/.vb files out to file system first then reupload) Builds updated source/.dll is built Executes an ALTER ASSEMBLY statement to "refresh" the dll and it's associated source code file(s)
--main table > create table test (manufacturer varchar(500), score int) > insert into test values('Toyota', 1 ) > insert into test values('Toyota', 2) > > --logging table > > create table log_old_val(manufacturer varchar(500), score int, operation > varchar(10)) > > --trigger to log old value into log_old_val table. > create trigger tr_man on test > for update,delete > as > if @@rowcount = 0 > return > if exists (select * from inserted) > if exists (select * from deleted) > insert into log_old_val > select manufacturer,score, 'update' from deleted > > if exists (select * from deleted) > if not exists (select * from inserted) > insert into log_old_val > select manufacturer,score, 'delete' from deleted > go
Hi, On Administrator session, I have created an CUSTOMER MSDE database. That's OK.
On user session, I want to access on my database CUSTOMER but I have on error : "Unable to connect to the database". And, in French : "Echec de la connexion de l'utilisateur Machine_Name/User_Name".
What is the error ? I don't know what to do any more. How to give right to the user ? Have you an idea ?
HOW TO GET A FILE'S CREATE DATE?? From SqlServer I need the create date of a file on C or D. Is there a function or code to retrieve the create date, or an API that could read and pass back the file's creation date???
My requirement is to get the autoincrement column once a new row is inserted, we need the autoincrement value to update other tables, at present I am using an insert trigger in which I am extracting the autoincrement column from the 'inserted' table, but how far this work perfectly when multiple users insert simultaneously. Can any of you suggest me the best way to extract the actual value inserted.
Now the scenario is :
sp which insert a row Begin tran insert ... select @returnKey = (select retkey from #temptab) drop #temptab Commit Tran
Trigger on insert
insert idcolumn into #temptab select autokey from inserted
If user A & B inserts row exactly at same time, will this method return the exact auto value what A and B have inserted to them respectively.
I am inserting some data from a temp to an existing table. The existing table has a primary key that is a number that just appears to be number 1-460 (there are 460 rows in the table). The data type for the primary key is int.
When I insert from my temp table to the existing I want to be able to add the next number in but am not sure how I can set that up?? I have pasted my code below. I am inserting into Lab_test_add_conf and the primary key value is lab_test_conf_id. In my select statement where I am getting the values to input I just put a number for now but that isn't going to work. You can ignore the rest of the numbers I have inserted and commas with no values I actually need to go add those to the temp table and just set their default values but I just first wanted to determine how I can create an autonumber. This is a third party software so I don't want to change the actual datatype of the existing table.
Insert Into Lab_Test_Add_Conf (lab_test_conf_id,system_id,labtest_key,value_code, value_description,value_code_system,value_type,units,sequence_number,table_name, field_name,created_by,create_timestamp,modified_by,modify_timestamp,row_timestamp)
select '460','2250',labtestkey,valuecode,value_description,'L',value_type,units, sequence_number,table_name,field_name,'58',,'58',, from #TempLabTestConfigImport
I have a trigger for a table which stores email information generated from an ACCESS form. The trigger should send an auto email response to users who submitted an email to request for their password (we have forgetful users!). There is something wrong with my trigger because the auto email is sent out with a blank body... I will appreciate any advice!
Thank you!
My trigger: CREATE TRIGGER tr_SendPassword ON PIPEmail FOR INSERT AS DECLARE @Password varchar(100) DECLARE @EmailAddress varchar(100) DECLARE @message varchar(100) IF (select count(*) from inserted) = 1 BEGIN IF exists (SELECT * FROM inserted WHERE Subject = 'Forgot my password') BEGIN select @Password = 'We received an email request from you for your password. Your password for SAR Search is: ' + UserRole.Password, @EmailAddress = [User].Email from UserRole join inserted on UserRole.WindowsUser = inserted.WindowsUser join [User] on [User].WindowsUser = UserRole.WindowsUser
exec master.dbo.xp_sendmail @recipients=@EmailAddress, @subject='SAR Search password request', @message=@Password END END
Does anyone know an easier way to create DB Maint Plans instead of having to create each one manually? i.e. Copy Maint Plans from 1 server to another automatically. Does anyone know of a quick export method.
Hi,Please can you let me know the best solution for creating a primary key which automatically increments by 1 each time a record is added. My current Primary key is of type "Int" which increments by 1 each time, but I would like my primary key to contain "ABC" before the 1. So each time a record is added I would like to see:-ABC000001 ABC000002ABC000003Etc, EtcI am using SQL Server 2000 and creating an ASP.Net application, will I need to write code in a Stored Procedure to do this?Regards,Brett
Hi, I use the SqlDataSource Control for generating SQL-statements that I easily can modify. But on some tables I cant autogenerate the statements for Insert, Delete and Update. The checkbox is dimmed/not enabled. Why cant I use the autogenerate feature on some tables?
Can anyone help me figure out how to set up a new table using SSIS with a record field that will generate a unique number? The record number is also the primary key in the table. I did this about a year ago with a bit of help, but once you get the language right and initiate the creation, the text for defining the table is no longer available. I have seen a lot of references for MySQL and MS SQL 2000 and an AUTO_Generate or a UNIQUE ID. None of this works within MS SQL 2005 in SSIS.
Not sure that's what I need to do but here goes: I need to create a temp table with data for a crosstab. (columns grouped by month)
The crosstab's not gonna show a missing month (example, date range is from January to June but there's no data for the month of January, so the 1rst column in the crosstab is Feb) Is there a way to create 'dummy' dates in the select statement and insert them in my result set so missing months will show whether theres data or not?
I created a table with a field called myID. I set the data type as "uniqueidentifier", but it won't auto generate. How do I create a field to auto generate a unique number? I'm working with SQL Server 2000 and I'm creating the table from Enterprise Manager.
Hi, i have a table with 3 ints that are used to store dates. Thedatetime data type is not used because this data comes from an oldAS400 server.I need to be able to use those 3 columns to build dates within a queryand be able to use them to compare themselves to other datesLet's say the table has the following values:myday mymonth myyear23 5 2006and suppose i want to do a query that displays all rows with dategreater than '20060520'Here is the query i have tried:selectcast(myday as varchar(2))+'/'+cast(mymonth asvarchar(2))+'/'+cast(myyear as varchar(4))from mytableThat query returns the string '23/5/2006' yet i can't use it to compareit with '20060520'Is there a way i can do this in a simple query?This is on sql server 2000
I would like to reopen this discussion. I need to create this tableusing SQL that will return this dataset.BRAID RATEDEFID MIN(BRADATE) MAX(BRADATE RATECODE PRODNAME614 14 12/1/2002 12/4/2004 Rack BeachTower Terrace618 14 12/8/2002 12/11/2004 Rack BeachTower Terrace622 14 12/15/2002 12/19/2004 Rack BeachTower TerraceI have provided the test data below and the SP I have been working with.The SP works fine as long as there are 4 seqential dates. I getunpredictable results when the count <> 4. I am also concerned on whathappens at the end of the month. For example, 1/31/2004, 2/1/2004.Does this affect the SP? I appreciate your continued support.MichaelCREATE TABLE [dbo].[BASERATEAVAIL_Tmp] ([BRAID] [decimal](18, 0) NOT NULL ,[RATEDEFID] [decimal](18, 0) NOT NULL ,[BRADATE] [datetime] NOT NULL ,[RATECODE] [varchar] (32) COLLATE SQL_Latin1_General_CP1_CI_AS NOTNULL,[PRODNAME] [varchar] (64) COLLATE SQL_Latin1_General_CP1_CI_AS NOTNULL) ON [PRIMARY]GOINSERT INTO dbo.BASERATEAVAIL_Tmp(BRAID, RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (614, 14, '12/1/2002', 'Rack', 'Beach Tower Terrace');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (615, 14, '12/2/2002', 'Rack', 'Beach Tower Terrace');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (616, 14, '12/3/2002', 'Rack', 'Beach Tower Terrace');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (617, 14, '12/4/2002', 'Rack', 'Beach Tower Terrace');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (618, 14, '12/8/2002', 'Rack', 'Beach Tower Terrace');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (619, 14, '12/9/2002 ', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (620, 14, '12/10/2002', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (621, 14, '12/11/2002', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (622, 14, '12/15/2002', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (623, 14, '12/16/2002', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (624, 14, '12/17/2002', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (625, 14, '12/18/2002', ' Rack ', ' Beach Tower Terrace ');INSERTINTO dbo.BASERATEAVAIL_Tmp(BRAID,RATEDEFID, BRADATE, RATECODE, PRODNAME)VALUES (626, 14, '12/19/2002 ', ' Rack ', ' Beach Tower Terrace ');CREATE PROCEDURE usp @n INTASSET ANSI_WARNINGS OFFSELECT MIN( braid) AS "braid",ratedefid, ratecode, prodname,MIN( CASE n WHEN 1 THEN bradate END ) AS "min_date",MAX( CASE n WHEN 0 THEN bradate END ) AS "max_date"FROM ( SELECT t1.braid, t1.ratedefid, t1.ratecode, t1.prodname,t1.bradate,COUNT( * ) % @n AS "n",( COUNT( * ) - 1 ) / @n AS "r"FROM BASERATEAVAIL_Tmp t1INNER JOIN BASERATEAVAIL_Tmp t2ON t2.bradate <= t1.bradateGROUP BY t1.braid, t1.ratedefid, t1.ratecode, t1.prodname,t1.bradate) DGROUP BY r, ratedefid, ratecode, prodnameHAVING MAX( CASE n WHEN 0 THEN bradate END ) IS NOT NULL ;Usage:EXEC usp @n = 4--Anith*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
To the experts in the field: There is probably a very simple solution that is avoiding my grasp.
I have a For Loop which I want to execute as long as a variable called BeforeRunDt = CurrentDate. Both are DateTime data types and I am using the following expression:
@BeforeRunDt==@CurrenDate
I get an error stating "Cannot convert expression value to propeerty type"
I understand that the result of the expression should be a boolean value but am just struggling on how to create it.
Hi does anyone know how to create a sql table and then import a list by just clicking on a button to call a procedure?CREATE TABLE clients(ClientID VARCHAR(5), ClientName VARCHAR(30), PRIMARY KEY (ClientID));LOAD DATA LOCAL INFILE 'C:/client.csv' INTO TABLE clientsLINES TERMINATED BY ' ';
I know that statistics called _WA_... are created on tables when auto create statistics is set on a database. Is this an indication that queries against the table would perform better if indexes were created on the columns in question? (The tables I'm interested in optimising are used equally for transactional querying and reporting)
For my company, we have made it a standard to create history tables and triggers for the majority of our production tables. I recently grew tired of consistently spending the time needed to create these tables and triggers so I invested some time in creating a script that would auto generate these.
We recently launched a project which required nearly 100 history tables & triggers to be created. This would have normally taken a good day or two to complete. However, with this script it took a near 10 seconds. Here are some details about the script.
The code below creates a stored procedure that receives two input parameters (@TableName & @CreateTrigger) and performs the following actions:
1) Queries system tables to retrieve table schema for @TableName parameter
2) Creates a History table ("History_" + @TableName) to mimic the original table, plus includes additional history columns.
3) If @CreateTrigger = 'Y' then it creates an Update/Delete trigger on the @TableName table, which is used to populate the History table.
/************************************************************************************************************ Created By: Bryan Massey Created On: 3/11/2007 Comments: Stored proc performs the following actions: 1) Queries system tables to retrieve table schema for @TableName parameter 2) Creates a History table ("History_" + @TableName) to mimic the original table, plus include additional history columns. 3) If @CreateTrigger = 'Y' then it creates an Update/Delete trigger on the @TableName table, which is used to populate the History table. ******************************************* MODIFICATIONS ************************************************** MM/DD/YYYY - Modified By - Description of Changes ************************************************************************************************************/ CREATE PROCEDURE DBO.History_Bat_AutoGenerateHistoryTableAndTrigger @TableName VARCHAR(200), @CreateTrigger CHAR(1) = 'Y' -- optional parameter; defaults to "Y" AS
-- query system tables to get table schema SELECT CONVERT(VARCHAR(500), SP2.value) AS TableDescription, CONVERT(VARCHAR(100), SC.Name) AS FieldName, CONVERT(VARCHAR(50), ST.Name) AS DataType, CONVERT(VARCHAR(10),SC.length) AS FieldLength, CONVERT(VARCHAR(10), SC.XPrec) AS FieldPrecision, CONVERT(VARCHAR(10), SC.XScale) AS FieldScale, CASE SC.IsNullable WHEN 1 THEN 'Y' ELSE 'N' END AS AllowNulls FROM SysObjects SO INNER JOIN SysColumns SC ON SO.ID = SC.ID INNER JOIN SysTypes ST ON SC.xtype = ST.xtype LEFT OUTER JOIN SysProperties SP ON SC.ID = SP.ID AND SC.ColID = SP.SmallID LEFT OUTER JOIN SysProperties SP2 ON SC.ID = SP2.ID AND SP2.SmallID = 0 WHERE SO.xtype = 'u' AND SO.Name = @TableName ORDER BY SO.[name], SC.ColOrder
OPEN CurHistoryTable
FETCH NEXT FROM CurHistoryTable INTO @TableDescr, @FieldName, @DataType, @FieldLength, @Precision, @Scale, @AllowNulls
WHILE @@FETCH_STATUS = 0 BEGIN
-- create list of table columns IF LEN(@FieldList) = 0 BEGIN SET @FieldList = @FieldName SET @FirstField = @FieldName END ELSE BEGIN SET @FieldList = @FieldList + ', ' + @FieldName END
IF LEN(@SQLTable) = 0 BEGIN SET @SQLTable = 'CREATE TABLE [DBO].[History_' + @TableName + '] (' + @CRLF SET @SQLTable = @SQLTable + @TAB + '[History' + @FieldName + '] [INT] IDENTITY(1,1) NOT NULL,' + @CRLF END
IF UPPER(@DataType) IN ('CHAR', 'VARCHAR', 'NCHAR', 'NVARCHAR', 'BINARY') BEGIN SET @SQLTable = @SQLTable + '(' + @FieldLength + ')' END ELSE IF UPPER(@DataType) IN ('DECIMAL', 'NUMERIC') BEGIN SET @SQLTable = @SQLTable + '(' + @Precision + ', ' + @Scale + ')' END
IF @AllowNulls = 'Y' BEGIN SET @SQLTable = @SQLTable + ' NULL' END ELSE BEGIN SET @SQLTable = @SQLTable + ' NOT NULL' END
SET @SQLTable = @SQLTable + ',' + @CRLF
FETCH NEXT FROM CurHistoryTable INTO @TableDescr, @FieldName, @DataType, @FieldLength, @Precision, @Scale, @AllowNulls END
CLOSE CurHistoryTable DEALLOCATE CurHistoryTable
-- finish history table script with standard history columns SET @SQLTable = @SQLTable + @TAB + '[HistoryCreatedOn] [DATETIME] NULL,' + @CRLF SET @SQLTable = @SQLTable + @TAB + '[HistoryCreatedByUserID] [SMALLINT] NULL,' + @CRLF
SET @SQLTable = @SQLTable + @TAB + '[HistoryCreatedByUserName] [VARCHAR](30) NULL,' + @CRLF SET @SQLTable = @SQLTable + @TAB + '[HistoryAction] [CHAR](1) NOT NULL' + @CRLF SET @SQLTable = @SQLTable + ' )'
PRINT @SQLTable
-- execute sql script to create history table EXEC(@SQLTable)
IF @@ERROR <> 0 BEGIN PRINT '******************** ERROR CREATING HISTORY TABLE FOR TABLE: ' + @TableName + ' **************************************' RETURN -1 END
IF @CreateTrigger = 'Y' BEGIN -- create history trigger SET @SQLTrigger = '/************************************************************************************************************' + @CRLF SET @SQLTrigger = @SQLTrigger + 'Created By: ' + SUSER_SNAME() + @CRLF SET @SQLTrigger = @SQLTrigger + 'Created On: ' + @Date + @CRLF SET @SQLTrigger = @SQLTrigger + 'Comments: Auto generated trigger' + @CRLF SET @SQLTrigger = @SQLTrigger + '***********************************************************************************************/' + @CRLF SET @SQLTrigger = @SQLTrigger + 'CREATE TRIGGER [Trigger_' + @TableName + '_UpdateDelete] ON DBO.' + @TableName + @CRLF SET @SQLTrigger = @SQLTrigger + 'FOR UPDATE, DELETE' + @CRLF SET @SQLTrigger = @SQLTrigger + 'AS' + @CRLF + @CRLF SET @SQLTrigger = @SQLTrigger + 'DECLARE @Action CHAR(1)' + @CRLF + @CRLF SET @SQLTrigger = @SQLTrigger + 'IF EXISTS (SELECT ' + @FirstField + ' FROM Inserted)' + @CRLF SET @SQLTrigger = @SQLTrigger + 'BEGIN' + @CRLF SET @SQLTrigger = @SQLTrigger + @TAB + 'SET @Action = ''U''' + @CRLF SET @SQLTrigger = @SQLTrigger + 'END' + @CRLF SET @SQLTrigger = @SQLTrigger + 'ELSE' + @CRLF SET @SQLTrigger = @SQLTrigger + 'BEGIN' + @CRLF SET @SQLTrigger = @SQLTrigger + @TAB + 'SET @Action = ''D''' + @CRLF SET @SQLTrigger = @SQLTrigger + 'END' + @CRLF + @CRLF SET @SQLTrigger = @SQLTrigger + 'INSERT INTO History_' + @TableName + @CRLF SET @SQLTrigger = @SQLTrigger + @TAB + '(' + @FieldList + ', HistoryCreatedOn, HistoryCreatedByUserName, HistoryAction)' + @CRLF SET @SQLTrigger = @SQLTrigger + 'SELECT ' + @FieldList + ', GETDATE(), SUSER_SNAME(), @Action' + @CRLF SET @SQLTrigger = @SQLTrigger + 'FROM DELETED'
--PRINT @SQLTrigger
-- execute sql script to create update/delete trigger EXEC(@SQLTrigger)
IF @@ERROR <> 0 BEGIN PRINT '******************** ERROR CREATING HISTORY TRIGGER FOR TABLE: ' + @TableName + ' **************************************' RETURN -1 END
