Looping through a multiple value parameter array

Question

I have a parameter that allows multiple values. Its for a name field in my database. What I want to be able to do is allow the user to put in a name and then have crystal fi

Answer 1

Another approach (I thought it made sense to create a separate answer), if you have Oracle, is to make use of the REGEXP_LIKE expression.

• Create a report that uses a Command.
• Create a string parameter ({?QUERY}) in the Command's panel; set the default value to 'ALL' (without single quotes).
• Add the query to the Command; reference the parameter:

SELECT customer_name FROM customers WHERE ( '{?QUERY}'='ALL' OR REGEXP_LIKE(customer_name, '{?QUERY}') )

• Add fields to the report as usual
• When prompted (running the report), enter a regular expression in the QUERY parameter. The pattern 'A|B|C' is equivalent to LIKE '%A%' OR LIKE '%B%' OR LIKE '%C%'.