A stored procedure that tests for a valid foreign key : Utility Procedure « Procedure Function « SQL Server / T-SQL Tutorial






13> create table Billings (
14>     BankerID           INTEGER,
15>     BillingNumber      INTEGER,
16>     BillingDate        datetime,
17>     BillingTotal       INTEGER,
18>     TermsID            INTEGER,
19>     BillingDueDate     datetime ,
20>     PaymentTotal       INTEGER,
21>     CreditTotal        INTEGER
22>
23> );
24> GO
1>
2> INSERT INTO Billings VALUES (1, 1, '2005-01-22', 165, 1,'2005-04-22',123,321);
3> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (2, 2, '2001-02-21', 165, 1,'2002-02-22',123,321.);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (3, 3, '2003-05-02', 165, 1,'2005-04-12',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (4, 4, '1999-03-12', 165, 1,'2005-04-18',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (5, 5, '2000-04-23', 165, 1,'2005-04-17',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (6, 6, '2001-06-14', 165, 1,'2005-04-18',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (7, 7, '2002-07-15', 165, 1,'2005-04-19',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (8, 8, '2003-08-16', 165, 1,'2005-04-20',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (9, 9, '2004-09-17', 165, 1,'2005-04-21',123,321);
2> GO

(1 rows affected)
1> INSERT INTO Billings VALUES (0, 0, '2005-10-18', 165, 1,'2005-04-22',123,321);
2> GO

(1 rows affected)
1>
2>
3> CREATE PROC spInsertBilling
4>        @BankerID    int,           @BillingNumber  varchar(50),
5>        @BillingDate smalldatetime, @BillingTotal   money,
6>        @TermsID     int,           @BillingDueDate smalldatetime
7> AS
8> IF EXISTS(SELECT * FROM Bankers WHERE BankerID = @BankerID)
9>     BEGIN
10>         INSERT Billings (BankerID)
11>         VALUES (@BankerID)
12>     END
13> ELSE
14>     BEGIN
15>         RAISERROR('Not a valid BankerID!',1,1)
16>         RETURN -100
17>     END
18> GO
1>
2>
3> drop PROC spInsertBilling;
4> GO
1>
2>
3> drop table Billings;
4> GO








21.11.Utility Procedure
21.11.1.Create procedure to drop foreign key
21.11.2.Spelling single digits.
21.11.3.uses system tables to determine the datatype of a field.
21.11.4.A stored procedure that tests for a valid foreign key
21.11.5.A script that creates a stored procedure that copies a table