How to filter the data in Crystal report

Crystal Report viewer control is providing selection information property
Syntax:CRV.SelectionFormula="Criteria"

Here i will give some examples to filter the data in reports
Query based on numeric

CRV.SelectionFormula="{emp.deptno}=10"

Query based on string

CRV.SelectionFormula="{emp.nob}"="head"

Query based on date

CRV.SelectionFormula="{emp.expDate}"="#11/12/2012#"

We can use operators  >,<,in,like etc to filter the data.