Multi Value Parameters

I have an issue using a Muiti Value Parameter. Upto a point it works
quite well.
The parameter is based on a field within the report & so when I preview
I get a list of values, and can select all, or some records. Thats the
bit that works.
However when I run the report it returns data for for 1 value only. I
have made sure that the filter on my report uses 'in' instead of '='.
One thing I would rater do thatn use the report filter is pass the
parameter directly to my SQL statement, does anyone know how this can
be done?
Thanks
PaddySo you're using a filter on the dataset (retrieve all rows first). This is
not very efficient, especially if you're dealing with tables with millions
of rows...
To do it on the data source side:
If your data source is SQL Server 2005, you can simply write your TSQL as
"...and myTable.myField IN (@.myParameter)"
If your data source is SQL Server 2000 or something else you could do either
of the following:
stored proc, pass the parameter to the stored proc as
=join(Parameters!myParameter.Value, ",")
Then write some code that splits your values out by "," and writes them to
an in-memory join table. Typically in the past, we've used a UDF to return
a table as well.
For a "straight query" (IOW TSQL, PLSQL, etc), as long as the data source
supports the IN clause, you could write dynamic SQL in the form:
="select ..... where myTable.myValue IN (" &
join(Parameters!myParameter.Value, ",") & ")"
If you go the dynamic sql path, write the query out first normally so you
don't have to fill in the field list, then change it to dynamic.
Clear as mud?
-Tim
"Paddy" <paddymullaney@.btopenworld.com> wrote in message
news:1152180850.976447.110760@.75g2000cwc.googlegroups.com...
>I have an issue using a Muiti Value Parameter. Upto a point it works
> quite well.
> The parameter is based on a field within the report & so when I preview
> I get a list of values, and can select all, or some records. Thats the
> bit that works.
> However when I run the report it returns data for for 1 value only. I
> have made sure that the filter on my report uses 'in' instead of '='.
> One thing I would rater do thatn use the report filter is pass the
> parameter directly to my SQL statement, does anyone know how this can
> be done?
> Thanks
> Paddy
>