- The semicolon (;).
- SELECT and FROM.
- Since this selects all columns in a table, it is considered more expensive than if you specify the columns you need.
- It helps to limit the results of your queries.
- Percent (%) and underscore (_).
- It helps you to sort your results.
- ASC or DESC.
- EXPLAIN.
- Right-click a table and choose Alter Table or you can execute a SQL query to alter the table.
- Click the Query menu in MySQL Workbench, then choose Explain Current Statement.




















































