problem in Function ?

Create FUNCTION FUNCTION_NAT

(

@.F_BRANCH_CODE CHAR,

@.F_COUNTRY CHAR,

@.F_CLIENT_VALUE CHAR

)

RETURNS TABLE

AS

RETURN

(

SELECT NLGIC_VALUE AS VALUE

FROM RAGHU.NAT

WHERE BRANCH_CODE = @.F_BRANCH_CODE

AND

COUNTRY = @.F_COUNTRY

AND

CLIENT_VALUE = @.F_CLIENT_VALUE

)

This is my function . when i run it as follows

select * from FUNCTION_NAT('450','British','BRI')

i did not get any value it is empty .

But when i run this query

SELECT NLGIC_VALUE AS VALUE

FROM RAGHU.NAT

WHERE BRANCH_CODE = '450'

AND

COUNTRY = 'British'

AND

CLIENT_VALUE = 'BRI'

it works fine . What is the problem in my function .

My knee-jerk reaction is that this might be a problem with the type definitions of the function parameters; hold on and I will try to verify. Look at this:

Code Snippet

alter FUNCTION FUNCTION_NAT
(
@.F_BRANCH_CODE CHAR,
@.F_COUNTRY CHAR,
@.F_CLIENT_VALUE CHAR
)
RETURNS TABLE
AS
RETURN
( select @.f_branch_code as branch_code,
@.f_country as country,
@.f_client_value as client_value
)

go

select * from function_nat('450','British','BRI')

/*
branch_code country client_value
-- -
4 B B
*/

You need to alter your type definitions from this

Code Snippet

(
@.F_BRANCH_CODE CHAR,
@.F_COUNTRY CHAR,
@.F_CLIENT_VALUE CHAR
)

to something like this:

Code Snippet

(
@.F_BRANCH_CODE CHAR(xx),

@.F_COUNTRY CHAR(yy),
@.F_CLIENT_VALUE CHAR(zz)
)

where xx, yy, and zz are the maximum number of characters that will be passed through each argument.

|||

Kent - i think you've hit the nail on the head.

From BOL: When n is not specified in a data definition or variable declaration statement, the default length is 1

SQL will not throw an error but merely cut the string off at the length. From the look of at least one of your variables, you may be better off with the VARCHAR datatype.

HTH!

sql