Displaying record based on the condition in Crystal report

Question

Hi All,
I want to display certain records in crystal based on some condition.
For example,
If I am having 5 student records like,
Name  Mark1 Mark2 Mark3 Total
aaa      40       50       60      150
abc      30       60       40       130
tcr        25      25        25       75
Now in table i have only 4 fields (STUNAME, MARK1, MARK2, MARK3).
I have to calculate the total at runtime and if total is greater than 150, then actual record should display in report.
For example, I can use formula to calculate total but I can calculate total only after each record prints. But i want to calculate total internally only it should display in report if condition satisfies. I dont want to keep one more field for total in crystal report.
Please help me on this.

Answer 1

If the filter is not "pushed" down to the database, then Crystal will pull all of the data into memory and then filter it there.  This is not a big deal if you only have a couple of records, but it can significantly slow down a report that is pulling in more than a few records.
An alternative, if your report is just linking tables in the Database Expert, would be to create a SQL Expression that adds the three fields together.  Using this in the Select Expert WILL push the condition down to the database.
If you're using a command instead of linking table, they you would add this to the Where clause of the comment.  If you're using a stored proc instead of tables or a command, you would want to do this filter in the code for the stored proc.
-Dell
Message was edited by: Dell Stinnett-Christy