How To Get Relation Between Two Feilds Of Same Table
Apr 18, 2007
Hi,
I am new to sql and is working with sql server managment 2005 +c# 2005.
My application needs to create a blockdiagram sort of thing say
if in my database i got a table 'Addition' with 'a', 'b', 'c',and the primary key addition_id, and c is related to a and b as c = a+ b.
there is stored procedure name usp_addition which contains this relation. Each time any insert or update is done this sp is executed and all the values are updated for accordingly.
My problem starts in the front end where i need to draw the graphical representation of table addition.
In this graphical representation, I need to draw the labels a, b, c and the arrows from a and b which will connect to c, showing that c has a, b as inputs.
I got the label using dataset and datacolumns but hte problem is how to create the arrows the name of labels (i.e my column names from which the arrow should start and end)
How does I get the information that c as two inputs a, b. I dont need the values since i just want to view the columns in table and which column is input to another column.
Since I need to do this dynamically because my tablename, and the number and name of column would differ does any body knows how to do this.
Priyadarshini
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Mar 29, 2007
I'm getting this warning each time I auto-generate my model. I'm using named queries with logical primary keys.
The relation property of the role "xxx" refers to the target end of relation "xxx" which is not bound to a set of uniquely contrained columns.
I've searched and can't figured out what I am being warned about and whether I need to fix something. Can you help?
Thanks,
Toni
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Dec 29, 2003
If i add a new table to my database with a stored procedure, using that same sp or another can i also add a 1-M relationship with another table that is currently in the database. Please if you can provide an example.
Thank you,
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Dec 13, 2007
When we have Table1 and Table2, then we
link both tables using a third table Table3 that relates n records in
Table1 to n records in table2, how do we call Table3? There is a name
in dataBase modeling for that, right?
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Feb 13, 2008
I'm a bit new to SQL, so this might be a very simple question, but I was not able to find an answer by search:
I got two tables, with a 1:n relation between them, seller and article, and I want to delete all sellers that do not offer any articles anymore.
An extract of my SQL to show the tables and the relation:
@"CREATE TABLE dbo.[Seller]
(
[ID] uniqueidentifier NOT NULL ROWGUIDCOL CONSTRAINT [PK_Seller] PRIMARY KEY,
) ON [PRIMARY]",
@"CREATE TABLE dbo.[Article]
(
[ID] uniqueidentifier NOT NULL ROWGUIDCOL CONSTRAINT [PK_Article] PRIMARY KEY,
[SellerID] uniqueidentifier NOT NULL,
) ON [PRIMARY]",
@"ALTER TABLE dbo.[Article] ADD CONSTRAINT [FK_ArticleSeller] FOREIGN KEY
(
[SellerID]
) REFERENCES dbo.[Seller]
(
[ID]
)",
Now say I got two sellers (1 & 2), and only one article (1, offered by seller 1). The delete query should delete seller 2 because he is not offering articles anymore.
This probably is dead simple in SQL, something like
DELETE FROM seller WHERE COUNT(article.SellerID=seller.ID)==0
but honestly, my SQL books leave me guessing here, and I found no online ref for cases like this.
Maybe someone can help me here?
Thanks in advance,
Sam
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Jun 9, 2014
I have 2 tables in a 1: n relation. How can i get a select statement that the field in the n-relation with outputs, separated by a semicolon; Example: One person have many Job Titles
Table1 (tblPerson)
Table2 (tblTitles)
1, "John", "Miller", "Employee; Admin; Consultant"
2, "Joan", "Stevens", "Employee, Software Engineer, Consultant"
and so on .... 1 in select statement:
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Nov 10, 2013
I have a table called "College". In a table, I have to create a structure for multilevel parent-child relationship
For Example,
1) State has number of colleges, Number of colleges has Number of dept. , Number of dept. has no. of subjects, no. of subject has number of chapters and the hierarchy goes on.
Expected Output is,
College 1
Dept 1
subject 1
subject 2
subject 3
Dept 2
Dept 3
[Code] ....
I tried in so many ways, I do not know how to query in single table.
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Jan 15, 2007
I want to build Parent child relation . i have two aproaches .I would like to know which is the best solution ?
1)1st method:-
Parent table with parent id . Child table with child id and parent id.Foreign key relationship exists between parent and child tables with cascade delete option enabled.
Parent TAble
Id name
1 XYZ
Child table
id name parent id
1 abc 1
2 qwe 1
2)2nd method
table with id and parent ID. Top level element will have null value in table. eg
id name parent id
1 xyz
2 abc 1
3 qwe 2
4 adf 1
Retrieve data using recursive queries supported in SQL Express.
Which is the best solution to store parent child relationship???
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Jan 15, 2014
I have problem for create relation between table. I have one table refer to 2 table with same field. Here's the code.
create table TopHeadConfTbl (
PartNumber varchar(14) primary key not null,
TpHdTypeID varchar(4) not null)
create table BotHeadConfTbl (
PartNumber varchar(14) primary key not null,
BotHdTypeID varchar(4) not null)
create table QuoDetTbl(
MainAsID varchar(14)not null,
PartNumber varchar(14) not null references (TopHeadConfTbl,BotHeadConfTbl) ,
ItemNumber varchar(14) notnull)
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Apr 28, 2004
hi all
having worked with access in the past and getting stumped by the fact a table could only hold 256 feilds....... does sql server have any such limit????
thanks
cq
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Oct 22, 2004
Hi there!
There is a feild in my table that contains the city, state and zip, all in the same feild. I was wondering how would be the best way to devide all that info up into 3 feilds? i really don't know how I would go about it since there are cities that can be comosed of 2 or more words. Here is some sample data. I hope someone can help.
SOUTH EL MONTE CA91733617
BOSSIER LA71172
GARDENA CA90249107
MILWAUKEE WI53216
PARIS IL61944
DUQUOIN IL62832
REDWOOD FALLS MN56283
AUBURN ME04210
IRWINDALE CA91706048
PORTLAND OR97202901
PORTLAND OR972028901
ANAHEIM CA928071735
KENT WA98032
CRYSTAL LAKE IL60014611
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Dec 3, 2004
Hello Group
I am having a little trouble with a search. I have 12 checkbox controls and 12 textbox controls. I want to be able to choose which textbox to query from. Most of the time the search may be from one or a couple of textboxes. My problem is I can get the SQL String right. Below is what I have for a string. I know I could write an SQL string for every possible combination and put in all 144 in a SELECT CASE, but I would think there is an easier way to do this. Is there anything that would let me build a SQL string depending what checkbox are checked true?
Dim SQL_SL As String = "SELECT * FROM BuildZone" & _
" WHERE Parcel = '" & strPercelS & "'" & _
" ORDER BY Parcel Asc" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldNameLast = '" & strNameLastS & "'" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldDateMonth = " & intDateYearS & "" & _
" AND fldDateYear = " & intDateYearS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldNameLast = '" & strNameLastS & "'" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldPermitNum = " & intPermitS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldStructureType = " & intStructureTypeS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldConstructionCost >= " & intCCost1S & "" & _
" AND fldConstructionCost <= " & intCCost2S & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldRange = " & intRangeS & "" & _
" AND fldTownship = " & intTownshipS & "" & _
" AND fldSection = " & intSectionS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldZoningDistricts = " & intZoneS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldTwsp = " & intTwspS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldRWD = " & intRWDS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldWW = " & intWWS & "" & _
" UNION" & _
" SQL_SL As String = SELECT * FROM BuildZone" & _
" WHERE fldAccessApplic = " & intAccessAppS & ""
Thanks
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Dec 1, 2006
shibu writes "I have a table 'manage_user_types' and its primary key is 'Category_ID'. There is another field 'Category_Parent_ID' which refers the 'Category_ID' in the same table. And one more field is 'Category_Name' which is related to 'Category_ID'. ie.when displaying the table in front end, 'Category_Name' is displayed under 'Category_Parent_ID'. I want to sort the table with 'Category_Name' when clicking the 'Category_Parent_ID' to sort. What should i do?"
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Jul 23, 2005
I was curious...Is there a way to select distinct on a combination of some fields andthe for each record returned also get the other fields of anarbitrarily chosen record matching the fields in the distinct record.For example, if I have a select distinct on say three fields:SELECT DISTINCT Code1, Code2, Code3but the table also has other fields, maybe Foo1 and Foo2, and I wantFoo1 and Foo2 to also be displayed. Since there may be multiplerecords that match a particular Code1, Code2, Code3, then I just wantone of those to be arbitrarily chosen.
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Jan 30, 2008
Hi,
Any one tell me how to get table to table relation I want to Delete both Table's row When I am going to delete Record from One table.
Thanks
Navi
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Dec 6, 2007
Hi friendsI have one Table called tblCategory.I have three Column CatID, CatName, ParentIDI have many records in this TableCatID CatName ParentID1 Cat1 0 2 Cat2 13 Cat3 14 Cat4 25 Cat5 26 Cat6 07 Cat7 68 Cat8 69 Cat9 710 Cat10 711 Cat11 8 Here I have Main Category which has ParentID 0 [ Cat1 and Cat6 ]I Have Sub categories of Cat1 Which has ParentID 1(CatID 1 of Cat1) [ Cat2 and Cat 3 ]Cat 2 has also sub category with ParentID 2 (CatID 2 of Cat2) [ Cat4 and Cat5]I want result looks like asCat1 Cat6 ->>>>>ParentID 0- Cat2 -Cat7 ->>>>>ParentID 1(CatID of Root Cat1) and ParentID 6(CatID of Root Cat6)- - Cat4 - -Cat9 ->>>>>PaerntID 2(CatID of Root Cat2) and ParentID 7(CatID of Root Cat7)- - Cat5 - -Cat10 ->>>>>PaerntID 2(CatID of Root Cat2) and ParentID 7(CatID of Root Cat7) - Cat3 -Cat8 -->>>>>ParentID 1(CatID of Root Cat1) and ParentID 6(CatID of Root Cat6)--No record --Cat11 Can anybody give me solution?Thanks
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May 12, 2006
This one shouldn't be too hard to do, just can't seem to figure it out.
I have two tables
tNames which contains 'ID' and 'Name'
tLocations which contains 'ID' and 'Location'
each ID may be associated with many Locations
I want to run a query to display these results:
[ID, Name, Location]
but only to return the first Location associated with that ID (or the max, min, I don't really care as long as it's only one result)
right now I have
Code:
SELECT tNames.ID, tNames.Name, tLocation.Location
FROM tNames INNER JOIN tLocations
ON tNames.ID = tLocations.ID
but this returns a new row for each different Location of the same ID
Thanks.
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Jun 18, 2007
hi all
i want to insert null values into a column which is a foreign key
It has relation form other table.Is it possible to insert null to such a field .if so please tell the synatax to insert(i mean the process)
Thanks In Advance
Malathi Rao
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Feb 12, 2008
Hi everyone...got a question.
How could i remove a relation from 2 tables using a script?
Thanks
RON
________________________________________________________________________________________________
"I won't last a day without SQL"
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Jul 23, 2005
Hello,I'm relative new to sql and databases and the last few weeks I learnedmyself a lot. I'm trying to make a hotel reservation application.I have a database with a table Booking, a table Room, a tableRoomsPerBooking. So a booking contains date/time etc and a fieldRoomsPerBookingID. The table RoomsPerBooking contains number ofpersons, unitprice etc. and a field ID and a field RoomID. The tableRoom contains data like name, notes etc.now i have two questions:First about relations:The table Booking has relationship: PK table RoomsPerBooking - ID <-->FK table Booking - RoomsPerBookingID.The table RoomsPerBookingID has relationship: PK table Room - ID <-->FK table RoomsPerBooking - RoomIDIs this relationset good for my purpose? I think it is, but I am notsure.The second question is:How do I get available rooms per nightI came this far.... what are the "some statements"?CREATE PROCEDURE dbo.GetAvailableRooms(@BeginDate DATETIME,@EndDate DATETIME)ASSELECT Room.*FROM RoomWHERE Room.ID NOT IN (SELECT DISTINCT room.IDFROM Room room JOIN RoomsPerBooking roomsPerBookingON room.ID = roomsPerBooking.RoomID--Some statements--WHERE booking.FromDate <= @EndDateAND booking.ToDate >= @BeginDate)GO
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Oct 9, 2006
I have defined a relation between 2 tables in "database diagrams" (IDE)but when a fill my tables vith a sqldataadapter i obtaina tables without relations why??how i can reslve this problem?my code is:Dim da As New SqlDataAdapter("SELECT * FROM table1", cn)Dim ds As New DataSetda.FillSchema(ds, SchemaType.Source, "table1")da.Fill(ds, "table1")--> ds.tables(0).relations.count =0 !!!!!!!!????????!!!
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Sep 8, 2007
HI!I have a ASPNETDB as my login databas. but now i want to connect this databas or the aspnet_user table to my table, how do i?I want to check the username in aspnet_user table and select the same username in my table?I want to write all sql code in a sql file. so i want to know how i can connect to the sql file from my c# code?I hope somebody understand me...
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Jan 2, 2001
hi, If I want to make one to many relationship, I put the pk of the parent as a fk in the child . like this
customer table (cust_id, fname,lname)
customer_order table(order_id,cust_id,qty,price)
I do understant this, but what about look up table, can I consider cust_id inthe customer_order table as a lookup field to the customer table?
Thanks
Al
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Jun 11, 2008
Hi
I have about six different entities that can have zero or more note entities associated with them. The easy way to do this is obviously to have a different "note" table for each of the entities i.e. WorkItemNote, CustomerNote etc.. But I would much rather have a single "note" table since they would all be identical, so I came up with this design:
CREATE TABLE WorkItem
(
WorkItemGuid uniqueidentifier PRIMARY KEY DEFAULT (newid()),
-- rest of table declaration removed for bravity
)
CREATE TABLE Customer
(
CustomerGuid uniqueidentifier PRIMARY KEY DEFAULT (newid()),
-- rest of table declaration removed for bravity
)
CREATE TABLE Note
(
NoteId int IDENTITY(1,1) NOT NULL PRIMARY KEY,
ReferenceGuid uniqueidentifier NOT NULL,
Text ntext NOT NULL,
-- rest of table declaration removed for bravity
)
This way I can get notes associated with a given entity, either Customer or WorkItem, by just selecting from the Note table with its WorkItemGuid or CustomerGuid.
My question is: Is this the best approach to what I am trying to accomplish?
(ps: Apologies if "many to one" is not the right terminology)
Regards, Egil.
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Mar 13, 2008
Hi,
This is my table setup
http://www.mshelp.be/img/logs.JPG
I want to retrieve the logs by profileId.
This is the stored procedure which I'm using. Don't get any syntax error, only not the correct output.
create procedure sp_Select_log_By_ProfileId
@ProfileId int
as
select
l.LogId, l.LogDescription, l.CreatedOn, l.LogAuthorId
from
Logs l inner join ProfileLogs pl
on
pl.LogId = l.LogId
where
pl.ProfileId = @ProfileId;
Can anyone help me ?
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Jan 19, 2007
hi, I got confused for a moment about creating data structure for UMLcomposition (strong aggregation) relation one-to-many.I used Rose/DataModeler to do so.[Parent] <filled_diamond>-------- [Child]I got P/FK (primary key of my component is foreign key of it's container) inmy child table:Parent: PK Parent_IDChild: P/FK Parent_IDthat way I found out I got relation 1:1, I'm still not sure how to createdata structure realizing compositiona one-to-many.
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Nov 18, 2007
Hi All,
I have a little problem and i hope u will help me.
Well, my problem is, i want to make a relation between 2 tables which r not in the same databse.
Database D1 >>> Table T1
Database D2 >>> Table T2
So i want something like this:
Table T1:
ID >>> PK
Table T2:
ID >>> PK
Table1ID >>> FK from Table T1
so, i will have a relation between the 2 tables.
Thanks in Advance,
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Mar 1, 2007
I have two tables: TableX & TableY
there is two similar fields (Size) with the same datatype, I want to make a relation in a way if I change the value in (TableX.Size) the same value will be applied to (TableY.Size).
How to?
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Nov 7, 2007
I usually crate relation with database but not use physical relation
* My question is if crate physical relation is best way or not
and what advantage and disadvantage of physical relation
and if it the best way to make relation
thanks in advance
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Jun 27, 2007
I want a PK-FK relation between my tables:
Products (PK = ProductID)Orders = (FK = ProductID)
How can I do this in SQL 2005?
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Nov 7, 2000
Hi Listers,
Can any one clarify me on the following doubt.
I have 2 w2k servers with different domains and On which SQL2k is running on both the Servers. Both the servers don't have any Trust Relations between them.
My questions is, Is it possible to create Linked Servers between sql servers but their Operating Systems doesn't have Trust Relationships?.
Any help would be appreciated.
tks in advance,
Sam
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Mar 11, 1999
Hi,
I have two tables.
CREATE TABLE Service(
SERVId varchar (10) NOT NULL,
SERVName varchar (30) NOT NULL,
SERVDesc TEXT NULL,
PRIMARY KEY(SERVId)
)
CREATE TABLE New(
SERVId varchar (10) NOT NULL,
NDId varchar (10) NOT NULL,
NDName varchar (30) NOT NULL,
NDDesc text NULL,
PRIMARY KEY(SERVId,NDId)
FOREIGN KEY(SERVId)
REFERENCES Service(SERVId)
)
Msg 547, Level 16, State 2
DELETE statement conflicted with COLUMN REFERENCE constraint 'FK__Newdev__SERVId__4939E6D2'. The conflict occurred in database 'test', table 'New', column 'SERVId'
Command has been aborted.
The same problem occurs even if the second table i.e. new is declared as follows, i.e created with only one primary key:
CREATE TABLE New(
SERVId varchar (10) NOT NULL,
NDId varchar (10) NOT NULL,
NDName varchar (30) NOT NULL,
NDDesc text NULL,
PRIMARY KEY(NDId)
FOREIGN KEY(SERVId)
REFERENCES Service(SERVId)
)
what might be the problem? But the same relation works on MS Access.
Is there anyother way of declaring this kind of relationship i.e. primary and foreign key?Can anyone pl. help me in solving this problem of foreign key relation.
thanks in advance
-chaitra
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Sep 24, 2014
Is there any way to find the dependency between two datasets in ssrs report. I want to delete one of dataset but need to find if I delete that it will work or any relation with the other dataset.
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