Case Statement with Input Variable

Please start any new threads on our new site at https://forums.sqlteam.com. We've got lots of great SQL Server experts to answer whatever question you can come up with.

All Forums

SQL Server 2000 Forums

Transact-SQL (2000)

Case Statement with Input Variable

Author

Topic

boblarson
Starting Member

17 Posts

Posted - 2008-10-14 : 17:33:14

I have tried all sorts of combinations but I just can't seem to get this one right. I've also searched here and still haven't found a Case statement that is based on an input variable. This is what I have so far:


CREATE FUNCTION dbo.fnGetMonthNumber (@MonthName As Varchar(20))  
RETURNS int AS  

BEGIN 
DECLARE @MonthInt As Int
Select @MonthInt = 
CASE @MonthName
	When  'January' Then 1
	When  'February' Then 2
	When  'March' Then 3
	When  'April' Then 4
	When  'May' Then 5
	When 'June' Then 6
	When  'July' Then 7
	When  'August' Then 8
	When  'September' Then 9
	When  'October' Then 10
	When  'November' Then 11
	When  'December' Then 12
ELSE 0
END

Return @MonthInt

I know I have something out of place. Currently I get an
Error 170: Line 23 Incorrect Syntax near '@MonthInt'
error message when checking it.

Thanks for any direction you can give. I'm still picking up on the differences in T-SQL from what I'm used to using.

Thanks,

Bob Larson

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2008-10-14 : 17:36:25

CASE WHEN @MonthName = 'January' THEN ... WHEN @MonthName = 'February' ...

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog

boblarson
Starting Member

17 Posts

Posted - 2008-10-14 : 17:47:46

Tara -
Okay, changed it to:


CREATE FUNCTION dbo.fnGetMonthNumber (@MonthName As Varchar(20))  
RETURNS int AS  

BEGIN 
DECLARE @MonthInt As Int
Select @MonthInt = 
CASE 
	When  @MonthName = 'January' Then 1
	When  @MonthName = 'February' Then 2
	When  @MonthName = 'March' Then 3
	When  @MonthName = 'April' Then 4
	When  @MonthName = 'May' Then 5
	When @MonthName = 'June' Then 6
	When  @MonthName = 'July' Then 7
	When  @MonthName = 'August' Then 8
	When  @MonthName = 'September' Then 9
	When  @MonthName = 'October' Then 10
	When  @MonthName = 'November' Then 11
	When  @MonthName = 'December' Then 12
ELSE 0
END

Return @MonthInt

And still get the error about "incorrect syntax near '@MonthInt' at line 23 (the last line). And if I remove that line I get "incorrect syntax near 'END'

Thanks for the help.

Thanks,

Bob Larson

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2008-10-14 : 17:51:19

You are missing an END. You need one for the BEGIN and also for the CASE.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog

boblarson
Starting Member

17 Posts

Posted - 2008-10-14 : 17:59:33

AAAAHHHHH - Gotcha! Thank you for your patience.

Thanks,

Bob Larson

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2008-10-15 : 03:13:01

You dont need a seperate function
It is as simple as

declare @MonthName varchar(12)
set @MonthName='March'
select month(cast(@MonthName+' 2000' as datetime)) as month_value

Madhivanan

Failing to plan is Planning to fail

Subscribe to SQLTeam.com

SQLTeam.com Articles via RSS

SQLTeam.com Weblog via RSS

- Advertisement -

Resources