Many way you can shrink the log file, some trick is given below.
1. Management studio:
- Don't do this on a live environment, but to ensure you shrink your dev db as much as you can:
- Right-click the database, choose properties, then options.
- Make sure "Recovery model" is set to "Simple", not "Full"
- Click Ok
- Right-click the database again, choose tasks -> shrink files
- Change file type to "log"
- Click ok.
ALTER DATABASE YourDatabaseName SET RECOVERY SIMPLEDBCC SHRINKFILE('YourDatabaseName_log', 0, TRUNCATEONLY)