Compose SQL segment
To use custom SQL to create a segment:
- Select Compose SQL Segment on the Audience page.  
- Select the Target Table from the drop-down menu. 
- Name the segment and optionally provide a description. 
- Add your SQL to the Enter Query code box (enter the portion of your SQL after - WHERE).
- Select the Validate button to confirm that your SQL is valid. 
- You can select Run Count to see how your SQL affects the Total Count of records in your segment. 
- Select Finish and select your next action. 
