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Parameter problem in UDF

Author

Topic

wangyc77
Yak Posting Veteran

65 Posts

Posted - 2007-02-08 : 21:22:22

CREATE FUNCTION dbo.RJ_PriceRequest2
(
@ecity varchar(30), @ewkind varchar(40)
)
RETURNS TABLE
AS
RETURN

select ecity, ewkind from Table
where ecity=@ecity and ewkind=@ewkind

I have 2 parameter in this function, but sometimes user will use only ecity (let say ecity=Tokyo, then no value for ewkind) and sometimes they will use both (say ecity=Tokyo, ewkind=Tobu). The first case it like he wants all result in Tokyo, and the second one is a more specific search. How do I let modify my function so it can achive this? Or I just have to make another function with one parameter only?

Thanks

**Jonathan**

khtan
In (Som, Ni, Yak)

17689 Posts

Posted - 2007-02-08 : 22:11:49

[code]
CREATE FUNCTION dbo.RJ_PriceRequest2
(
@ecity varchar(30),
@ewkind varchar(40)
)
RETURNS TABLE
AS
RETURN
select ecity, ewkind from Table -- your table name here
where ecity = coalesce(@ecity, ecity)
and ewkind = coalesce(@ewkind, ewkind)
[/code]

What is your table name ?

wangyc77
Yak Posting Veteran

65 Posts

Posted - 2007-02-09 : 07:27:03

Thanks for helping, it is solved~~

**Jonathan**

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