sql函数创建实例_sql函数中使用标量传值

--创建数据表
26> create table Bankers(
27>    BankerID             Integer,
28>    BankerName           VARCHAR(20),
29>    BankerContactLName   VARCHAR(20),
30>    BankerContactFName   VARCHAR(20),
31>    BankerCity           VARCHAR(20),
32>    BankerState          VARCHAR(20),
33>    BankerZipCode        VARCHAR(20),
34>    BankerPhone          VARCHAR(20)
35> )
36> GO

--添加测试数据
2> insert into Bankers values (1, 'ABC Inc.','Joe','Smith','Vancouver','BC','11111','111-111-1111');
3> GO

(1 rows affected)
1> insert into Bankers values (2, 'DEF Inc.','Red','Rice', 'New York', 'DE','22222','222-222-2222');
2> GO

(1 rows affected)
1> insert into Bankers values (3, 'HJI Inc.','Kit','Cat',  'Paris',    'CA','33333','333-333-3333');
2> GO

(1 rows affected)
1> insert into Bankers values (4, 'QWE Inc.','Git','Black','Regina',   'ER','44444','444-444-4444');
2> GO

(1 rows affected)
1> insert into Bankers values (5, 'RTY Inc.','Wil','Lee',  'Toronto',  'YU','55555','555-555-5555');
2> GO

(1 rows affected)
1> insert into Bankers values (6, 'YUI Inc.','Ted','Larry','Calgary',  'TY','66666','666-666-6666');
2> GO

(1 rows affected)
1> insert into Bankers values (7, 'OIP Inc.','Yam','Act',  'San Franc','FG','77777','777-777-7777');
2> GO

(1 rows affected)
1> insert into Bankers values (8, 'SAD Inc.','Hit','Eat',  'Orland',   'PO','88888','888-888-8888');
2> GO

(1 rows affected)
1> insert into Bankers values (9, 'DFG Inc.','Sad','Lee',  'Wisler',   'PL','99999','999-999-9999');
2> GO

(1 rows affected)
1> insert into Bankers values (0, 'GHJ Inc.','Bit','Lee',  'Ticker',   'MN','00000','000-000-0000');
2> GO

(1 rows affected)

--创建sql函数
3> CREATE FUNCTION fnBankerID
4>     (@BankerName varchar(50))
5>     RETURNS int
6> BEGIN
7>     RETURN (SELECT BankerID FROM Bankers WHERE BankerName = @BankerName)
8> END
9> GO

--删除sql函数与数据表
2> drop FUNCTION fnBankerID;
3> GO
1> drop table Bankers;
2> GO