Mysql Workbench insert data suggest error: 1046 (ErrorCode: 1046.No database select ...)

 Problem Description:

Error Code: 1046.  Select the default DB to be used by double-clicking its name in the SCHEMAS list in the sidebar.    0.000 sec

Wrong reasons: the default database is not selected to receive these data

Solution:  1. Double-click the database to be operated

2. Execute the sql statement

3. Check whether the data into success