SQL Function variable quote passing

I have a function that I need to pass a variable of 'SHM' but I cannot figure out how to get the single quotes to pass in variable. Thanks in advance. I am using SQL Server 2000.

Function Query

select * from dbo.sales_union_func  
'SHM' -- Needs to pass as 'SHM' not SHM

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CREATE function sales_union_func (


) returns table AS return

select * from stock where assoc=@assoc

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Guy Hengel [angelIII / a3]Billing EngineerCommented:
are you 200% sure that you need to pass quotes ?

if yes:

select * from dbo.sales_union_func  ( '''SHM'''  )
ubsmailAuthor Commented:
I am sure but that didnt work. Any other suggestions?
--this returns results--

select top 1000 * from stock where assoc='SHM'

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CREATE function assoc_test (
    @assoc char
) returns table AS return

select top 1000 * from stock where assoc=@assoc

select * from assoc_test ('''SHM''')

--Does not return results

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Kevin CrossChief Technology OfficerCommented:
In the question, you do NOT have any data type defined for @assoc and then in the above you have just char. You are likely passing just a single quote for comparison. As angeliii eluded to, you do NOT need to pass the quotes if the parameter is defined with the proper data type to match the data type of the column assoc; therefore, this should work for example:

CREATE function dbo.assoc_test (
    @assoc char(3)
) returns table AS return
select top 1000 * from stock where assoc=@assoc

select * from dbo.assoc_test('SHM');


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Guy Hengel [angelIII / a3]Billing EngineerCommented:
I agree, if you want to pass a string, once you define the variable as string, it's ok to pass it like shown.
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