SQL Server/T-SQL/Store Procedure Function/Function Call
Pass table column to a user defined function
1>
2> CREATE TABLE EmployeeList
3> (EmployeeName VarChar(100))
4> GO
1> INSERT INTO EmployeeList (EmployeeName) SELECT "Fred, First"
2> INSERT INTO EmployeeList (EmployeeName) SELECT "Rubble, Last"
3> GO
(1 rows affected)
(1 rows affected)
1>
2>
3> CREATE FUNCTION fnLastName (@Name VarChar(100))
4> RETURNS VarChar(100)
5> AS
6> BEGIN
7> DECLARE @CommaPosition Int, @LastName varchar(100)
8> SET @CommaPosition = 6
9> SET @LastName = SUBSTRING(@Name, 1, @CommaPosition)
10> RETURN @LastName
11> END
12> GO
1>
2> SELECT dbo.fnLastName(EmployeeName) As LastName, dbo.fnLastName(EmployeeName) As FirstName
3> FROM EmployeeList
4> GO
LastName FirstName
---------------------------------------------------------------------------------------------------- -------------------
---------------------
Fred, Fred,
Rubble Rubble
(2 rows affected)
1>
2> drop function fnLastName
3> drop table EmployeeList
4> GO
1>
Select from a function returning a table
3>
4>
5> CREATE TABLE titles(
6> title_id varchar(20),
7> title varchar(80) NOT NULL,
8> type char(12) NOT NULL,
9> pub_id char(4) NULL,
10> price money NULL,
11> advance money NULL,
12> royalty int NULL,
13> ytd_sales int NULL,
14> notes varchar(200) NULL,
15> pubdate datetime NOT NULL
16> )
17> GO
1>
2> insert titles values ("1", "Secrets", "popular_comp", "1389", $20.00, $8000.00, 10, 4095,"Note 1","06/12/94")
3> insert titles values ("2", "The", "business", "1389", $19.99, $5000.00, 10, 4095,"Note 2","06/12/91")
4> insert titles values ("3", "Emotional", "psychology", "0736", $7.99, $4000.00, 10, 3336,"Note 3","06/12/91")
5> insert titles values ("4", "Prolonged", "psychology", "0736", $19.99, $2000.00, 10, 4072,"Note 4","06/12/91")
6> insert titles values ("5", "With", "business", "1389", $11.95, $5000.00, 10, 3876,"Note 5","06/09/91")
7> insert titles values ("6", "Valley", "mod_cook", "0877", $19.99, $0.00, 12, 2032,"Note 6","06/09/91")
8> insert titles values ("7", "Any?", "trad_cook", "0877", $14.99, $8000.00, 10, 4095,"Note 7","06/12/91")
9> insert titles values ("8", "Fifty", "trad_cook", "0877", $11.95, $4000.00, 14, 1509,"Note 8","06/12/91")
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2> CREATE TABLE sales(
3> stor_id char(4) NOT NULL,
4> ord_num varchar(20) NOT NULL,
5> ord_date datetime NOT NULL,
6> qty smallint NOT NULL,
7> payterms varchar(12) NOT NULL,
8> title_id varchar(80)
9> )
10> GO
1> insert sales values("1", "QA7442.3", "09/03/94", 75, "ON Billing","1")
2> insert sales values("2", "D4482", "09/04/94", 10, "Net 60", "1")
3> insert sales values("3", "N914008", "09/04/94", 20, "Net 30", "2")
4> insert sales values("4", "N914014", "09/04/94", 25, "Net 30", "3")
5> insert sales values("5", "423LL922", "09/04/94", 15, "ON Billing","3")
6> insert sales values("6", "423LL930", "09/04/94", 10, "ON Billing","2")
7> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
1>
2>
3> CREATE FUNCTION SalesByStore(@storid varchar(30))
4> RETURNS TABLE
5> AS
6> RETURN (SELECT title, qty
7> FROM sales s, titles t
8> WHERE s.stor_id = @storid AND t.title_id = s.title_id)
9> GO
1>
2> SELECT * FROM SalesByStore ("8042")
3> GO
title qty
-------------------------------------------------------------------------------- ------
(0 rows affected)
1>
2> drop FUNCTION SalesByStore;
3> GO
1>
2> drop table sales;
3> drop table titles;
4> GO
1>