Crystal Reports, Advanced SQL Commands and Parameters
Crystal Reports Pic 4 - Select Data Tables (Photo credit: wmharshana ) I've not written a Crystal Report that required a more advanced query in quite a while, and had a need to union two selects and pass in a parameter to both queries. I initially just wrote the Union query and attempted to place my {?CustomerName} in both places using the "=" comparison operator, which worked. When I wanted to add the ability for the user to only add a portion of the customer name in the query and use the LIKE operator, Crystal had some issues and thought I was trying to pass a column name or some such trash. Eventually I found an article that suggested the use of a DECLARE and SET to hold the parameter that Crystal passes, then hand it off to the query. This also failed until I wrapped the entire UNION in a SELECT and passed in the parameter once. Yay! DECLARE @Cust VarChar(200) SET @Cust = '{?CustomerName}' SELECT * FROM ( SELECT Name, Address, City, State, Zi...