Select Query

Hi

I have a table field SWWWIHEAD-WI_TEXT

the values for the field are for eg.

Travel Request: 2846 for Employee: 18472

Travel Request: 353 for Employee: 1525

Travel Request: 42134 for Employee: 8855

Now when user gives Travel request number in selection screen as 2846

i need to fetch the above record. User wont input the key field.

Basically I need to look into each fields text and find if the travel request number is there in the text field.

How do we fram the select query on this.

Any help will be appreciated.