A CREATE TRIGGER statement that corrects mixed-case state names : Utility trigger « Trigger « SQL Server / T-SQL Tutorial






8> create table Bankers(
9>    BankerID             Integer,
10>    BankerName           VARCHAR(20),
11>    BankerContactLName   VARCHAR(20),
12>    BankerContactFName   VARCHAR(20),
13>    BankerCity           VARCHAR(20),
14>    BankerState          VARCHAR(20),
15>    BankerZipCode        VARCHAR(20),
16>    BankerPhone          VARCHAR(20)
17> )
18> GO
1>
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)
1>
2> CREATE TRIGGER Bankers_INSERT_UPDATE
3>     ON Bankers
4>     AFTER INSERT,UPDATE
5> AS
6>     UPDATE Bankers
7>     SET BankerState = UPPER(BankerState)
8>     WHERE BankerID IN (SELECT BankerID FROM Inserted)
9> GO
1>
2> insert into Bankers values (0, 'GHJ Inc.','Bit','Lee',  'Ticker',   'MN','00000','000-000-0000');
3> GO

(1 rows affected)
1> drop trigger Bankers_INSERT_UPDATE;
2> GO
1>
2> drop table Bankers;
3> GO
1>
2>








22.17.Utility trigger
22.17.1.Auditing Triggers
22.17.2.A script that creates AFTER triggers to maintain referential integrity
22.17.3.A CREATE TRIGGER statement that corrects mixed-case state names
22.17.4.Creating the UpdateLog table and an update trigger on the authors table.