Foreign Key Constraint- Reference 1 Of 2 Tables
Nov 2, 2007
Hi,
I don't know if this is possible, i believe not, so I'm here to ask the experts if is possible to have a foreign key constraint that references the key of one of two tables.
Like this:
I have 3 tables: TABLE X, TABLE A and TABLE B
Is it possible to the FK on TABLE X refernce the PK of TABLE A OR TABLE B?
If yes, how can I do this?
If not, I need to have a fourth table, so TABLE X references TABLE A and TABLE Y references TABLE B.
Thanks!
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Mar 5, 2008
Greetings all!
How can I enforce a foreign key constraint when I have two tables each one residing on a different database?
Thanks for your help in advance.
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Apr 9, 2007
Hello
I have a problem with setting relations properly when inserting data using adonet. Already have searched for a solutions, still not finding a mistake...
Here's the sql management studio diagram :
and here goes the code1 DataSet ds = new DataSet();
2
3 SqlDataAdapter myCommand1 = new SqlDataAdapter("select * from SurveyTemplate", myConnection);
4 SqlCommandBuilder cb = new SqlCommandBuilder(myCommand1);
5 myCommand1.FillSchema(ds, SchemaType.Source);
6 DataTable pTable = ds.Tables["Table"];
7 pTable.TableName = "SurveyTemplate";
8 myCommand1.InsertCommand = cb.GetInsertCommand();
9 myCommand1.InsertCommand.Connection = myConnection;
10
11 SqlDataAdapter myCommand2 = new SqlDataAdapter("select * from Question", myConnection);
12 cb = new SqlCommandBuilder(myCommand2);
13 myCommand2.FillSchema(ds, SchemaType.Source);
14 pTable = ds.Tables["Table"];
15 pTable.TableName = "Question";
16 myCommand2.InsertCommand = cb.GetInsertCommand();
17 myCommand2.InsertCommand.Connection = myConnection;
18
19 SqlDataAdapter myCommand3 = new SqlDataAdapter("select * from Possible_Answer", myConnection);
20 cb = new SqlCommandBuilder(myCommand3);
21 myCommand3.FillSchema(ds, SchemaType.Source);
22 pTable = ds.Tables["Table"];
23 pTable.TableName = "Possible_Answer";
24 myCommand3.InsertCommand = cb.GetInsertCommand();
25 myCommand3.InsertCommand.Connection = myConnection;
26
27 ds.Relations.Add(new DataRelation("FK_Question_SurveyTemplate", ds.Tables["SurveyTemplate"].Columns["id"], ds.Tables["Question"].Columns["surveyTemplateID"]));
28 ds.Relations.Add(new DataRelation("FK_Possible_Answer_Question", ds.Tables["Question"].Columns["id"], ds.Tables["Possible_Answer"].Columns["questionID"]));
29
30 DataRow dr = ds.Tables["SurveyTemplate"].NewRow();
31 dr["name"] = o[0];
32 dr["description"] = o[1];
33 dr["active"] = 1;
34 ds.Tables["SurveyTemplate"].Rows.Add(dr);
35
36 DataRow dr1 = ds.Tables["Question"].NewRow();
37 dr1["questionIndex"] = 1;
38 dr1["questionContent"] = "q1";
39 dr1.SetParentRow(dr);
40 ds.Tables["Question"].Rows.Add(dr1);
41
42 DataRow dr2 = ds.Tables["Possible_Answer"].NewRow();
43 dr2["answerIndex"] = 1;
44 dr2["answerContent"] = "a11";
45 dr2.SetParentRow(dr1);
46 ds.Tables["Possible_Answer"].Rows.Add(dr2);
47
48 dr1 = ds.Tables["Question"].NewRow();
49 dr1["questionIndex"] = 2;
50 dr1["questionContent"] = "q2";
51 dr1.SetParentRow(dr);
52 ds.Tables["Question"].Rows.Add(dr1);
53
54 dr2 = ds.Tables["Possible_Answer"].NewRow();
55 dr2["answerIndex"] = 1;
56 dr2["answerContent"] = "a21";
57 dr2.SetParentRow(dr1);
58 ds.Tables["Possible_Answer"].Rows.Add(dr2);
59
60 dr2 = ds.Tables["Possible_Answer"].NewRow();
61 dr2["answerIndex"] = 2;
62 dr2["answerContent"] = "a22";
63 dr2.SetParentRow(dr1);
64 ds.Tables["Possible_Answer"].Rows.Add(dr2);
65
66 myCommand1.Update(ds,"SurveyTemplate");
67 myCommand2.Update(ds, "Question");
68 myCommand3.Update(ds, "Possible_Answer");
69 ds.AcceptChanges();
70
and that causes (at line 67):"The INSERT statement conflicted with the FOREIGN KEY constraint
"FK_Question_SurveyTemplate". The conflict occurred in database
"ankietyzacja", table "dbo.SurveyTemplate", column
'id'.
The statement has been terminated.
at System.Data.Common.DbDataAdapter.UpdatedRowStatusErrors(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
at System.Data.Common.DbDataAdapter.UpdatedRowStatus(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.UpdateFromDataTable(DataTable dataTable, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable)
at AnkietyzacjaWebService.Service1.createSurveyTemplate(Object[] o) in J:\PL\PAI\AnkietyzacjaWebService\AnkietyzacjaWebServicece\Service1.asmx.cs:line 397"
Could You please tell me what am I missing here ?
Thanks a lot.
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Jun 12, 2008
Hi All,
Table FACT1 is located on SERVER1 & Database - DBS1 (SQL Server 2000) with a column 'Date_fk'
Table DIM1 is located on SERVER2 & Database - DBS2 (SQL Server 2005) with a column 'Date_pk'.
I m trying to create a foreign key relation ship as follows:
ALTER TABLE [dbo].[FACT1] WITH CHECK ADD
CONSTRAINT [FK_Issue] FOREIGN KEY([Date_fk])
REFERENCES [SERVER2].[DBS2].[DIM1] ([Date_pk])
but it throws the foll. error
Foreign key 'FK_Issue' references invalid table 'SERVER2.DBS2.DIM1'.
Please let me know if i m missing anything.
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Aug 11, 1999
student --- enrollment is 1- to - many . ssn is pk in student. ssn and courseid is pk in enrollment. later I added the foreign key constraint FK_SSN in enrollment table reference student table. it is ok.
enrollment --- lessonhistory is 1-to -many, ssn, courseid and lessonid is pk in lessonhistory . I tried to set FK_SSN foreign key constraint in lessonhistory table reference enrollment table, it always show error message " no primary key in referewnce talbe enrollment "
I don't know how to fix it. could you help me out, thanks!!
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Nov 20, 2011
I have a created a database with nearly 20 tables in it, so I cannot post all of my statements. I am having an issue though with two tables' referential integrity when it comes to foreign key constraints. I want to constrain them to cascade updates from the primary key tables, but I keep getting the error msg 1785
Introducing FOREIGN KEY constraint 'FK__PURCHASE___ITEM___64F971E5' on table 'PURCHASE_ORDER_LINE' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Here is the table with the primary key:
create table MERCHANDISE (
ITEM_ID varchar (8) NOT NULL PRIMARY KEY,
DESCRIPTION CHAR (60),
STANDARD_PRICE MONEY,
[code]...
I have tried making an update trigger but it does not work.
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Apr 25, 2006
i have a publication that is composed of
many articles. The publication is composed of many
realated tables. I'm doing a snapshot replication
Is there a way to specify the order by which table
must synchonize.
lets say. article 1 synchonizes first, then article 3, then article 2
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Jun 21, 2006
Hello guys,
I would like to delete a row in a table, but I get the following message :
The DELETE statement conflicted with the REFERENCE constraint "FK_cs_Users". The conflict occurred in database "mytable", table "dbo.cs_UserProfile", column 'UserID'.
The statement has been terminated.
(0.701 sec)
But I did this :
alter table cs_Users disable trigger ALL
delete
from cs_Users
where MembershipID = 'xxx'
Thank you very much for any help to get this work !
Regards,
Fabian
my favorit hoster is ASPnix : www.aspnix.com !
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Jan 3, 2002
Hi
I am attempting to write a DTS package that copies the data across from one instance of a db on a test server to a second instance on to the live server. It has to replace all the exisiting date so I can't append. Unfortunately, the package keeps giving me errors all of the type "unable to truncate tbl due to foreign key constraints". Is there a way round this?
Thanks
Steve
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Jan 11, 2007
sql 2000, northwind databse
code in sql analyzer:
Code:
ALTER TABLE categories NOCHECK CONSTRAINT ALL
TRUNCATE TABLE categories
ALTER TABLE categories CHECK CONSTRAINT ALL
but still i am getting the error:
Quote: Server: Msg 4712, Level 16, State 1, Line 2
Cannot truncate table 'categories' because it is being referenced by a FOREIGN KEY constraint.
what i need to do is write a query that just cleans all the tables of all data.
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Feb 10, 2004
"Introducing FOREIGN KEY constraint 'FK__APPLICANTMA__SEX__414EAC47' on table 'APPLICANTMASTER' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints."
ive a foreign key reference on the table APPLICANT MASTER
of the form
FOREIGN KEY (SEXCODE) REFERENCES
APPLICANTSEX(SEXCODE)
ON DELETE NO ACTION
ON UPDATE CASCADE,
can any one help me WHAT THE MESSAGE MEANS ?
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Apr 9, 2008
Hi all, I'm new here so I hope this is the right place to post!!
I'm having a really big problem trying to make a table. I'm not new to the coding, but I'm no expert either.... as far as I can see I haven't done anything wrong...
I have many tables, but the first two are JobDetails and Promotions... in JobDetails, there is a primary key Job which needs to link to Promotions as a foreign key.... here is my code and errors, I'd really appreciate some help...
create table JOBDETAIL
(Job varchar2(15) primary key,
Dept varchar2(10) not null,
Salary number(7) not null);
create table PROMOTION
(PCID number(6) primary key,
PDate date,
Constraint fkey_p1 foreign key (Job) references JOBDETAIL(Job));
ERROR at line 4:
ORA-00904: "Job": invalid identifier
... any help would be appreciated, this is quite important... thank you!!!
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Dec 13, 2007
Here is my sqlce:
Code Block
alter table tblV
add constraint
foreign key (T_ID)
references tblT(T_ID)
on delete set null on update cascade
Error is:
Major Error 0x80040E14, Minor Error 25501
There was an error parsing the query. [ Token line number = 3,Token line offset = 1,Token in error = foreign ]
I'm new with SQL Mobile, so sorry for the novice question.
Thanks
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Jan 21, 2007
Hi,
I am fairly new to SQL server Express and I have quite a simple database set up and I am trying to test it out with data. I have €śPain Reading€? and €śWorsen Factors€? tables with a 1: M relationship. The primary key in the Pain reading table is ReadingID which is being set using getdate() for the default value. I am getting the following error when attempting to add a new row to the €śWorsen Factors€? table:
No row was updated
The data in row 1 was not committed.
Error source:.Net SqlClient Data Provider
Error Message: The insert statement conflicted with the FOREIGN KEY constraint "FK_WorsenFactor_PainReading1". The confilct occurred in database "paindata", table "dbo.PainReading", column 'ReadingID'.
The statement has been terminated.
Any help or suggestions would be very helpful.
Thanks
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Aug 1, 2007
I have two tables; each has multi-column primary keys. I need to create a foreign key relationship between the two tables.
Sales:
DKey, int, PK
OKey,int, PK
RKey,int, PK
...
Rep:
Bkey, int, PK, identity
Rkey, int, PK
...
When I try to like Rkey from both tables as a foreign key relationship, I get an error that the columns in one table "do not match an existing primary key or UNIQUE constraint. (I've tried it both ways and get the same error.)
How can I link these two tables?
Thanks.
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Dec 3, 2007
Hi,
i have two tables, one is department-Table(Master table) and other is employee-table(Child table).
DNO is a data field which is common in both the table. "DNO" is primary key in department-table and "DNO" is foreign key in child table.
I am trying to insert rows in the table i found the following error:
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Employee_Department". The conflict occurred in database "Project", table "dbo.Department", column 'Dno'.
What's the solution to replace this error
Thanks.
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Oct 11, 2006
Hi there
Yesterday I made alot of updates to to various tables within a databse, to update some records I had to drop the foreign key constraint, but when I try to add the constraint back I get an error message (in red)
ALTER TABLE [dbo].[ITEMS] ADD
CONSTRAINT [FK_ITEMS__ITEM_CATEGORIES] FOREIGN KEY
(
[ITC_ID]
) REFERENCES [dbo].[ITEM_CATEGORIES] (
[ITC_ID]
) ON UPDATE CASCADE NOT FOR REPLICATION ,
CONSTRAINT [FK_ITEMS__ITEM_TYPES] FOREIGN KEY
(
[ITY_ID]
) REFERENCES [dbo].[ITEM_TYPES] (
[ITY_ID]
) ON UPDATE CASCADE NOT FOR REPLICATION
GO
Server: Msg 1785, Level 16, State 1, Line 1
Introducing FOREIGN KEY constraint 'FK_ITEMS__ITEM_CATEGORIES' on table 'ITEMS' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Server: Msg 1750, Level 16, State 1, Line 1
Could not create constraint. See previous errors
any suggestions? I tried modifying the statement to ON UPDATE NO ACTION, but I get exactly the same error message.
Any help would be much appreciated...thanks in advance
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Aug 9, 2007
A website that I'm working on has users sign in and keeps a log of the pages they go to. The log table has a foreign key in it that links to the username is the users table. I need to update the username for one of the users but the foreign key is preventing me from doing so. What is the benefit of having a foreign key like this? Can I delete it to update the username or is there a better way?
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Oct 26, 2007
The following SQL statements give me an error on the last line:
CREATE TABLE Employees (id int PRIMARY KEY NOT NULL, name nvarchar(50));
CREATE TABLE RandomTable (uniq int PRIMARY KEY NOT NULL, empid1 int NOT NULL, empid2 int NOT NULL);
ALTER TABLE RandomTable ADD CONSTRAINT RandomTable_FKey_1 FOREIGN KEY (empid1) REFERENCES Employees (id) ON DELETE CASCADE;
ALTER TABLE RandomTable ADD CONSTRAINT RandomTable_FKey_2 FOREIGN KEY (empid2) REFERENCES Employees (id) ON DELETE CASCADE;
The error is:
"The referential relationship will result in a cyclical reference that is not allowed."
Um...how is this cyclical? Is it because I have multiple cascade paths? If so, how do I go about doing the same thing?
Thanks,
Jeff
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Mar 6, 2008
I have two tables: table 1 and table 2. The primary key of table is composite key of two collumns and table 2 is the child of parent table 1. Is it possible to create / define a foreign key constraint using a composite primary key?
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Mar 1, 2001
I have to drop foreign key constraint from one table. How can I do that? Is it possible?
Also,
Is it possible to add a foreign key constraint on the table once it has a data?
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Mar 17, 2004
I am importing data from a flat, comma delimited text file. It appears to properly import all the records and then on the last record it give me the error
INSERT statement conflicted with COLUMN FOREIGN KEY constraint for 'EOR_ITE_REF_EOR'.
Then it goes on to tell me the database, table and column in which the problem occured which is the first column in the table. It looks like it doesn't like the end of the file for some reason (EOR, end of record?) so I tried deleting the last record from the file and it still does it. I do have a file that I have imported that worked so I tried copying the last record of that file and pasting it into the last record of the file I wanted but that did not work either. The ends of file that works and the file that doesn't work look the same and I can find nothing on 'EOR_ITE_REF_EOR'. Any help would be appreciated.
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Jul 3, 2015
why it is not possible to create a Foreign key to a Unique constraint?
Table A has column 1 holding a Primay key and two columns (2 and 3) holding a Unique combination (and some more columns).He created an Unique constraint on column 2 and 3 together.
He wanted to use this Unique combination to point to table B (instead of the table 1's PK) so he tried to create a foreign key on a column in table B but an error popped up prompting;
The columns in table 'TABLE_A' do not match an existing primary key or UNIQUE constraint.
Ok - these two columns ar no PK but the hold an Unique constraint......
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Jul 20, 2005
Hello,I'm working with a number of databases. I need a way to determine if aforeign key with given name exists and determine what tables andfields are linked to it. Any ideas?I know I can issue the following statement to get a list of the fieldsthat are constrained by a foreign key constraint.SELECT * FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGEHow can I get a list of fields pointed to by the constraints?Thanks,WillJoin Bytes!
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Oct 1, 2007
Hello!
I am trying to alter a table adding a column with foreignkey constraint. The table that holds the primary key in that relation has data, so i am not being able to execute the alter statement.
This is the error:
Server: Msg 547, Level 16, State 1, Line 1
ALTER TABLE statement conflicted with COLUMN FOREIGN KEY constraint 'FK_MOPAeroportoICAO_IDMOPAlimentacaoFerroviaTipo'. The conflict occurred in database 'MOP', table 'MOPAlimentacaoFerroviaTipo', column 'IDMOPAlimentacaoFerroviaTipo'.
This is the script:
ALTER TABLE MOPAeroportoICAO
ADD IDMOPAlimentacaoFerroviaTipo [int] DEFAULT 0 NOT NULL
CONSTRAINT [FK_MOPAeroportoICAO_IDMOPAlimentacaoFerroviaTipo] FOREIGN KEY
REFERENCES MOPAlimentacaoFerroviaTipo (IDMOPAlimentacaoFerroviaTipo)
How can i turn of check when i add the foreign key ?
Thanks in advance
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Feb 8, 2007
Hello, I'm having some problems trying to create this foreign key constraint:
ALTER TABLE dbo.t2_demaclie
ADD CONSTRAINT FK03_T2_DEMACLIE FOREIGN KEY (dclPerfilCompania, dclOrdenPedido)
REFERENCES DBO.T2_PEDIDOCLIENTE (cdPerfilCompania, nmOrdenPedido)
Server: Msg 547, Level 16, State 1, Line 1
ALTER TABLE statement conflicted with TABLE FOREIGN KEY constraint 'FK03_T2_DEMACLIE'. The conflict occurred in database 'Comfruta_dllo', table 't2_pedidoCliente'.
I'm sure there's no other constraint with the same name, and there's no othe one with the same columns...
Thanks a lot !!
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Nov 10, 2006
Hi
I am trying to update tables "Table A" & " TableB" with a new value for a particular column1. Now "TableA" contains a foreign key "FK1" defined on it and is referencing another table "Table B" containing the similar column "Column1"
Because of this constraint I was not able to update TableA and TableB. My question is
1) If i wanted to go ahead with this update, what are the possible ways?
2) If only solution is to drop the constraint. Then How do i know the definition for this particular Foreign key, i mean it may refer some columns in Table B. I wanted to know the complete definition of it so that i can rebuild the constraint after the update. Right now i can see only the constraint name when i use sp_help TableA. But how do i know the complete reference made by this foreign key.
Early reply is much appreciated
Thanks!
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Jul 11, 2006
Hello,
Does anyone know a way from within a .net application to find out if a row has a foreign key constraint before updating it? Or possibly in a SQL Stored Procedure if necessary.
What I am trying to do is basicly simulate a delete of a row in a SQL 2005 database from a .net application. Instead of actually deleting the row I want to set a bool column as deleted. The problem is that I can't orphan records that have a relationship to the one deleted.
This is normaly taken care of automaticly with refrential integrity working properly, but not actually calling delete comands I can't seem to find that out without writing a lot of code to check manually in other tables for that key.
Any help would be appreciated greatly,
Thanks,
Patrick
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Nov 22, 2007
Hello, I try to delete a user from the Membership table but I receive this error. "The DELETE statement conflicted with the REFERENCE constraint "FK__aspnet_Me__UserI__15502E78". The conflict occurred in database "E:INETPUBWEBSITE4APP_DATAASPNETDB.MDF", table "dbo.aspnet_Membership", column 'UserId'.The statement has been terminated."...<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False" DataKeyNames="UserId" DataSourceID="SqlDataSource1" EmptyDataText="There are no data records to display."> <Columns> <asp:CommandField ShowDeleteButton="True" /> <asp:BoundField DataField="UserId" HeaderText="UserId" SortExpression="UserId" /> <asp:BoundField DataField="UserName" HeaderText="UserName" SortExpression="UserName" /> <asp:BoundField DataField="LastActivityDate" HeaderText="LastActivityDate" SortExpression="LastActivityDate" /> </Columns> </asp:GridView> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ASPNETDBConnectionString1 %>" DeleteCommand="DELETE FROM [aspnet_Users] WHERE [UserId] = @UserId" InsertCommand="INSERT INTO [aspnet_Users] ([ApplicationId], [UserId], [UserName], [LoweredUserName], [MobileAlias], [IsAnonymous], [LastActivityDate]) VALUES (@ApplicationId, @UserId, @UserName, @LoweredUserName, @MobileAlias, @IsAnonymous, @LastActivityDate)" ProviderName="<%$ ConnectionStrings:ASPNETDBConnectionString2.ProviderName %>" SelectCommand="SELECT [ApplicationId], [UserId], [UserName], [LoweredUserName], [MobileAlias], [IsAnonymous], [LastActivityDate] FROM [aspnet_Users]" UpdateCommand="UPDATE [aspnet_Users] SET [ApplicationId] = @ApplicationId, [UserName] = @UserName, [LoweredUserName] = @LoweredUserName, [MobileAlias] = @MobileAlias, [IsAnonymous] = @IsAnonymous, [LastActivityDate] = @LastActivityDate WHERE [UserId] = @UserId"> <InsertParameters> <asp:Parameter Name="ApplicationId" Type="Object" /> <asp:Parameter Name="UserId" Type="Object" /> <asp:Parameter Name="UserName" Type="String" /> <asp:Parameter Name="LoweredUserName" Type="String" /> <asp:Parameter Name="MobileAlias" Type="String" /> <asp:Parameter Name="IsAnonymous" Type="Boolean" /> <asp:Parameter Name="LastActivityDate" Type="DateTime" /> </InsertParameters> <UpdateParameters> <asp:Parameter Name="ApplicationId" Type="Object" /> <asp:Parameter Name="UserName" Type="String" /> <asp:Parameter Name="LoweredUserName" Type="String" /> <asp:Parameter Name="MobileAlias" Type="String" /> <asp:Parameter Name="IsAnonymous" Type="Boolean" /> <asp:Parameter Name="LastActivityDate" Type="DateTime" /> <asp:Parameter Name="UserId" Type="Object" /> </UpdateParameters> <DeleteParameters> <asp:Parameter Name="UserId" Type="Object" /> </DeleteParameters> </asp:SqlDataSource></Content> ... cheers,imperialx
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Jun 11, 2015
CREATE TABLE PRODUCT_SALES
(
Salesmanid BIGINT,
Productid BIGINT
)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,1)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,2)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,3)
SELECT * FROM PRODUCT_SALES
/* SalesmanID is reference key from Sales Master and ProductID is reference key from Product Master. How should i restrict user through DB with any constraint check, if user tries to enter
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,2),
It should throw error , if possible user defined message would be more useful.
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Mar 7, 2008
Hello Friends
How are you?? Friends i am getting problem in SQL Server 2005. I am deployng web application on production server as well as Databse also. In production server i inserted new field in all tables which is rowguid and its type is uniqueidentifier. The default binding for this field is newsequentialid(). In some pages it works ok but in some places it generates error like which is describe below:
Error:
System.Data.SqlClient.SqlException: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_TransactionDetails_TransactionMain". The conflict occurred in database "dbname", table "dbo.TransactionMain", column 'TransactionMainID'. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_TransactionDetails_TransactionMain". The conflict occurred in database "dbname", table "dbo.TransactionMain", column 'TransactionMainID'. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_TransactionDetails_TransactionMain". The conflict occurred in database "dbname", table "dbo.TransactionMain", column 'TransactionMainID'. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_TransactionDetails_TransactionMain". The conflict occurred in database "dbname", table "dbo.TransactionMain", column 'TransactionMainID'. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_TransactionDetails_TransactionMain". The conflict occurred in database "dbname", table "dbo.TransactionMain", column 'TransactionMainID'. The statement has been terminated. The statement has been terminated. The statement has been terminated. The statement has been terminated. The statement has been terminated. at MyGeneration.dOOdads.BusinessEntity.LoadFromSql(String sp, ListDictionary Parameters, CommandType commandType) at MyGeneration.dOOdads.BusinessEntity.LoadFromSql(String sp, ListDictionary Parameters) at LCO.pname.DAL.BLL.AccountInfo.funName(Parameters)
In above mentioned error, foreign key is availabe in child table. Can anybody help me to solve this problem. Its urgent so plz reply me as soon as possible. I'll be very thankfull to you. Thanks in Advance.
Regards,
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May 14, 2008
Hello All, i have 2 files in excel which i am uploading them to a folder which is located in the root directory. then i am importing these two files into a sqldatabase. i needed some help in importing them and i got it from my previous post at http://forums.asp.net/t/1261155.aspx but now i have a problem. the import works perfectly first time but when i do it the second time i am getting an error on of the file (header). to explain clearly, what i am doing is , every time i upload a new file , i am deleting the data from the tables, so the new data can be inserted ( basically trying to achieve overwirting the existing data). now this technique works fine with the Detail table but not with the Header table. i think the reason is the header table has a primary key on OrderID and a relationship does exists between the Header and Detail. now how would i overcome this error. can some one please guide me. I really appreciate it.here is my code: // connection for header file
protected OleDbCommand headExcelConnection() { // Connect to the Excel Spreadsheet
string headConnStr = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Server.MapPath("~/imports/headerorder.xls") + ";" + "Extended Properties=Excel 8.0;"; // create your excel connection object using the connection string
OleDbConnection headXConn = new OleDbConnection(headConnStr); headXConn.Open(); // use a SQL Select command to retrieve the data from the Excel Spreadsheet // the "table name" is the name of the worksheet within the spreadsheet // in this case, the worksheet name is "Sheet1" and is expressed as: [Sheet1$]
OleDbCommand headCommand = new OleDbCommand("SELECT * FROM [Sheet1$]", headXConn); return headCommand; } // importing header information
protected void BtnImpHeader_Click(object sender, EventArgs e) { PanelUpload.Visible = false; PanelView.Visible = false; PanelImport.Visible = true; LabelImport.Text = ""; // reset to blank // Create a new Adapter
OleDbDataAdapter objDataAdapter = new OleDbDataAdapter(); // retrieve the Select command for the Spreadsheet
objDataAdapter.SelectCommand = headExcelConnection();
// Create a DataSet
DataSet objDataSet = new DataSet(); // Populate the DataSet with the spreadsheet worksheet data
objDataAdapter.Fill(objDataSet);
// deleting the exisitng table before copy
SqlConnection mycon = new SqlConnection(ConfigurationManager.ConnectionStrings["ImportexcelConnectionString"].ConnectionString); SqlCommand SqlCmd = null; mycon.Open(); SqlCmd = mycon.CreateCommand(); SqlCmd.CommandText = "DELETE FROM Header"; ---- showing error over on second time SqlCmd.ExecuteNonQuery(); mycon.Close(); // entering the newer header information
SqlConnection mysqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["ImportexcelConnectionString"].ConnectionString); mysqlcon.Open(); foreach (DataRow dr in objDataSet.Tables[0].Rows) { String sqlinsert = "insert into Header values(@param1,@param2,@param3,@param4,@param5,@param6,@param7,@param8,@param9,@param10,@param11,@param12,@param13,@param14,@param15,@param16,@param17,@param18,@param19,@param20,@param21,@param22,@param23,@param24,@param25,@param26,@param27,@param28,@param29,@param30,@param31,@param32)"; SqlCommand cmd = new SqlCommand(sqlinsert, mysqlcon); cmd.Parameters.AddWithValue("@param1", dr[0].ToString()); cmd.Parameters.AddWithValue("@param2", dr[1].ToString()); cmd.Parameters.AddWithValue("@param3", dr[2].ToString()); cmd.Parameters.AddWithValue("@param4", dr[3].ToString()); cmd.Parameters.AddWithValue("@param5", dr[4].ToString()); cmd.Parameters.AddWithValue("@param6", dr[5].ToString()); cmd.Parameters.AddWithValue("@param7", dr[6].ToString()); cmd.Parameters.AddWithValue("@param8", dr[7].ToString()); cmd.Parameters.AddWithValue("@param9", dr[8].ToString()); cmd.Parameters.AddWithValue("@param10", dr[9].ToString()); cmd.Parameters.AddWithValue("@param11", dr[10].ToString()); cmd.Parameters.AddWithValue("@param12", dr[11].ToString()); cmd.Parameters.AddWithValue("@param13", dr[12].ToString()); cmd.Parameters.AddWithValue("@param14", dr[13].ToString()); cmd.Parameters.AddWithValue("@param15", dr[14].ToString()); cmd.Parameters.AddWithValue("@param16", dr[15].ToString()); cmd.Parameters.AddWithValue("@param17", dr[16].ToString()); cmd.Parameters.AddWithValue("@param18", dr[17].ToString()); cmd.Parameters.AddWithValue("@param19", dr[18].ToString()); cmd.Parameters.AddWithValue("@param20", dr[19].ToString()); cmd.Parameters.AddWithValue("@param21", dr[20].ToString()); cmd.Parameters.AddWithValue("@param22", dr[21].ToString()); cmd.Parameters.AddWithValue("@param23", dr[22].ToString()); cmd.Parameters.AddWithValue("@param24", dr[23].ToString()); cmd.Parameters.AddWithValue("@param25", dr[24].ToString()); cmd.Parameters.AddWithValue("@param26", dr[25].ToString()); cmd.Parameters.AddWithValue("@param27", Convert.ToDecimal(dr[26].ToString())); cmd.Parameters.AddWithValue("@param28", Convert.ToDecimal(dr[27].ToString())); cmd.Parameters.AddWithValue("@param29", Convert.ToDecimal(dr[28].ToString())); cmd.Parameters.AddWithValue("@param30", Convert.ToDecimal(dr[29].ToString())); cmd.Parameters.AddWithValue("@param31", Convert.ToDecimal(dr[30].ToString())); cmd.Parameters.AddWithValue("@param32", dr[31].ToString()); cmd.ExecuteNonQuery(); // new SqlCommand (stmt, mysqlcon).ExecuteNonQuery();
LabelImport.Text = "Rows Inserted"; } mysqlcon.Close(); }// connection for detail file
protected OleDbCommand detExcelConnection() { // Connect to the Excel Spreadsheet
string detConnStr = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Server.MapPath("~/imports/detailorder.xls") + ";" + "Extended Properties=Excel 8.0;"; // create your excel connection object using the connection string
OleDbConnection detXConn = new OleDbConnection(detConnStr); detXConn.Open(); // create your excel connection object using the connection string // use a SQL Select command to retrieve the data from the Excel Spreadsheet // the "table name" is the name of the worksheet within the spreadsheet // in this case, the worksheet name is "Sheet1" and is expressed as: [Sheet1$]
OleDbCommand detCommand = new OleDbCommand("SELECT * FROM [Sheet1$]", detXConn); return detCommand; }// importing detail information
protected void ButtonImport_Click(object sender, EventArgs e) { PanelUpload.Visible = false; PanelView.Visible = false; PanelImport.Visible = true; LabelImport.Text = ""; // reset to blank // Create a new Adapter
OleDbDataAdapter objDataAdapter = new OleDbDataAdapter(); // retrieve the Select command for the Spreadsheet
objDataAdapter.SelectCommand = detExcelConnection();
// Create a DataSet
DataSet objDataSet = new DataSet(); // Populate the DataSet with the spreadsheet worksheet data
objDataAdapter.Fill(objDataSet);
// deleting the exisitng table before copy
SqlConnection mycon = new SqlConnection(ConfigurationManager.ConnectionStrings["ImportexcelConnectionString"].ConnectionString); SqlCommand SqlCmd = null; mycon.Open(); SqlCmd = mycon.CreateCommand(); SqlCmd.CommandText = "DELETE FROM Detail"; SqlCmd.ExecuteNonQuery(); mycon.Close(); // entering newer detail information
SqlConnection mysqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["ImportexcelConnectionString"].ConnectionString); mysqlcon.Open(); foreach (DataRow dr1 in objDataSet.Tables[0].Rows) { String sqlinsert = "insert into Detail values(@param1,@param2,@param3,@param4,@param5,@param6,@param7,@param8,@param9,@param10,@param11,@param12,@param13)"; SqlCommand cmd = new SqlCommand(sqlinsert, mysqlcon); cmd.Parameters.AddWithValue("@param1", dr1[0].ToString()); cmd.Parameters.AddWithValue("@param2", dr1[1].ToString()); cmd.Parameters.AddWithValue("@param3", dr1[2].ToString()); cmd.Parameters.AddWithValue("@param4", dr1[3].ToString()); cmd.Parameters.AddWithValue("@param5", dr1[4].ToString()); cmd.Parameters.AddWithValue("@param6", dr1[5].ToString()); cmd.Parameters.AddWithValue("@param7", dr1[6].ToString()); cmd.Parameters.AddWithValue("@param8", Convert.ToDecimal(dr1[7].ToString())); cmd.Parameters.AddWithValue("@param9", Convert.ToDecimal(dr1[8].ToString())); cmd.Parameters.AddWithValue("@param10", dr1[9].ToString()); cmd.Parameters.AddWithValue("@param11", dr1[10].ToString()); cmd.Parameters.AddWithValue("@param12", dr1[11].ToString()); cmd.Parameters.AddWithValue("@param13", dr1[12].ToString()); cmd.ExecuteNonQuery(); LabelImport.Text = "Rows Inserted"; } mysqlcon.Close(); } the error is as follows:
Server Error in '/WebSite6' Application.
The DELETE statement conflicted with the REFERENCE constraint
"FK_Detail_Header". The conflict occurred in database "C:DOCUMENTS AND
SETTINGSMEMY DOCUMENTSVISUAL STUDIO
2005WEBSITESWEBSITE6APP_DATADATABASE.MDF", table "dbo.Detail", column
'OrderID'.The statement has been terminated. Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.SqlClient.SqlException: The DELETE statement conflicted with the
REFERENCE constraint "FK_Detail_Header". The conflict occurred in database
"C:DOCUMENTS AND SETTINGSMEMY DOCUMENTSVISUAL STUDIO
2005WEBSITESWEBSITE6APP_DATADATABASE.MDF", table "dbo.Detail", column
'OrderID'.The statement has been terminated.Source Error:
Line 176: SqlCmd = mycon.CreateCommand();Line 177: SqlCmd.CommandText = "DELETE FROM Header";Line 178: SqlCmd.ExecuteNonQuery();Line 179: mycon.Close();Line 180: again i really appreciate.Thanks
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Jul 23, 2005
I'm trying to create a local copy of a popular CRM database calledSalesforce.com. Many of the tables in the DB have FOREIGN KEYreferences that I want to preserve, but I've run into a chicken and eggproblem. Table "A" has a reference to table "B," and table "B" has areference to table "A." So I can't CREATE one until the other exists.Is there a way to disable these checks until I've created all theschema?Here's what I see (error first, then SQL that caused it):Server: Msg 1767, Level 16, State 1, Line 1Foreign key 'FK__UserRole__LastMo__48CFD27E' references invalid table'User'.Server: Msg 1750, Level 16, State 1, Line 1Could not create constraint. See previous errors.CREATE TABLE salesforce3.dbo."UserRole" ("Id" varchar(18) PRIMARY KEY ,"Name" varchar(40), "ParentRoleId" varchar(18) REFERENCES"UserRole"(Id), "RollupDescription" varchar(80),"OpportunityAccessForAccountOwner" varchar(40),"CaseAccessForAccountOwner" varchar(40), "LastModifiedDate" datetime,"LastModifiedById" varchar(18) REFERENCES "User"(Id), "SystemModstamp"datetime);CREATE TABLE salesforce3.dbo."User" ("Id" varchar(18) PRIMARY KEY ,"Username" varchar(80), "LastName" varchar(80), "FirstName"varchar(40), "CompanyName" varchar(80), "Division" varchar(80),"Department" varchar(80), "Title" varchar(80), "Street" text, "City"varchar(40), "State" varchar(20), "PostalCode" varchar(20), "Country"varchar(40), "Email" varchar(80), "Phone" varchar(40), "Fax"varchar(40), "MobilePhone" varchar(40), "Alias" varchar(8), "IsActive"bit, "TimeZoneSidKey" varchar(40), "UserRoleId" varchar(18) REFERENCES"UserRole"(Id), "LocaleSidKey" varchar(40), "ReceivesInfoEmails" bit,"ReceivesAdminInfoEmails" bit, "EmailEncodingKey" varchar(40),"ProfileId" varchar(18) REFERENCES "Profile"(Id), "LanguageLocaleKey"varchar(40), "EmployeeNumber" varchar(20), "WirelessEmail" varchar(80),"LastLoginDate" datetime, "CreatedDate" datetime, "CreatedById"varchar(18) REFERENCES "User"(Id), "LastModifiedDate" datetime,"LastModifiedById" varchar(18) REFERENCES "User"(Id), "SystemModstamp"datetime, "UserPermissionsMarketingUser" bit,"UserPermissionsOfflineUser" bit, "UserPermissionsWirelessUser" bit,"UserPermissionsSuperCssUser" bit, "UserPermissionsAvantgoUser" bit);
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