Mega Code Archive
Filtering for Null Values with a Stored Procedure
<![CDATA[
4>
5> create table Bankers(
6> BankerID Integer,
7> BankerName VARCHAR(20),
8> BankerContactLName VARCHAR(20),
9> BankerContactFName VARCHAR(20),
10> BankerCity VARCHAR(20),
11> BankerState VARCHAR(20),
12> BankerZipCode VARCHAR(20),
13> BankerPhone VARCHAR(20)
14> )
15> 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>
3> CREATE PROCEDURE usp_SalesPersonInATerritoryOrNot
4> @TID int = NULL
5> AS
6> IF @TID IS NOT NULL
7> SELECT BankerName
8> FROM Bankers
9> WHERE BankerID = @TID
10> ELSE
11> SELECT BankerName
12> FROM Bankers
13> WHERE BankerID IS NULL
14> GO
1>
2> EXEC usp_SalesPersonInATerritoryOrNot 1
3> GO
BankerName
--------------------
ABC Inc.
(1 rows affected)
1> EXEC usp_SalesPersonInATerritoryOrNot NULL
2> GO
BankerName
--------------------
(0 rows affected)
1> EXEC usp_SalesPersonInATerritoryOrNot
2> GO
BankerName
--------------------
(0 rows affected)
1>
2> drop PROCEDURE usp_SalesPersonInATerritoryOrNot;
3> GO
1>
2> drop table Bankers;
3> GO
1>
]]>