Insert Procedure In Two Tables With Foreign Key Relation Ship

Mar 16, 2007

I was wondering how I do to insert values in two tables that are related each other by a FK?
 
That is the procedure that illustrate what I meant to be.
 
 ALTER Procedure [dbo].[new_user]
 
@master nchar(10),
@nick nchar(10),
@fish nchar(10),
@e_mail nchar(30)
 
As
Begin
 
INSERT INTO users
                      (nick, fish, e_mail)
VALUES     (@nick,@fish,@e_mail)
 
INSERT INTO friends
                      (user_id, e_mail)
VALUES     ( Select user_id from users where nick=@master,@e_mail)
 
End
 
Thank you very much.

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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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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:-

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Parent TAble

Id name

1 XYZ

Child table

id name parent id

1 abc 1

2 qwe 1

2)2nd method

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Retrieve data using recursive queries supported in SQL Express.

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Jun 18, 2007

hi all

i want to insert null values into a column which is a foreign key
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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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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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Is there anyway to get the order in which data to be import on to tables when they have primary and Foreign Key relations?

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Hi all,

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-- ImportCSVprojects.sql --

USE ChemDatabase

GO

CREATE TABLE Projects

(

ProjectID int,

ProjectName nvarchar(25),

LabName nvarchar(25)

);

BULK INSERT dbo.Projects

FROM 'c:myfileProjects.csv'

WITH

(

FIELDTERMINATOR = ',',

ROWTERMINATOR = ''

)

GO
=======================================
-- ImportCSVsamples.sql --

USE ChemDatabase

GO

CREATE TABLE Samples

(

SampleID int,

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Matrix nvarchar(25),

SampleType nvarchar(25),

ChemGroup nvarchar(25),

ProjectID int

);

BULK INSERT dbo.Samples

FROM 'c:myfileSamples.csv'

WITH

(

FIELDTERMINATOR = ',',

ROWTERMINATOR = ''

)

GO
=========================================
-- ImportCSVtestResult.sql --

USE ChemDatabase

GO

CREATE TABLE TestResults

(

AnalyteID int,

AnalyteName nvarchar(25),

Result decimal(9,3),

UnitForConc nvarchar(25),

SampleID int

);

BULK INSERT dbo.TestResults

FROM 'c:myfileLabTests.csv'

WITH

(

FIELDTERMINATOR = ',',

ROWTERMINATOR = ''

)

GO

========================================
The 3 csv files were successfully imported into the ChemDatabase of my SSMSE.

2 questions to ask:
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Should I do this "designate" thing after the 3 dbo Tables are done or during the "Importing" period?
(2) How can I set up the relationships among these 3 dbo Tables?

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http://www.mshelp.be/img/logs.JPG

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Code:


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Starting with an example will make explaining this much easier.

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Code SnippetTable1 Table2


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[...] [...]
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Code Snippet

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I know altering the schema of system tables is a big no-no, but I was wondering if setting up a table that has foreign keys pointing to a system table is bad.

Basically what I'm refering to is in some cases I have CreationDate and CreatedBy fields in my tables that correspond to GETDATE() and USER_NAME() functions in insert statements....I want the CreatedBy field to be a valid SQL server DB username ... and not some unchecked string value (SYSNAME actually)

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