MySQL TRUNCATE table and Source command

1. TRUNCATE TABLE XXX
In the test, I hate the primary key of a table has been growing, always feel the most comfortable starting from 1, ^_^, TRUNCATE table can help me, compared to the delete from, it makes the data table from the growth of the field starting value of 1;
2.source command
Used to execute SQL scripts, which in some cases works particularly. For example, you can save a bunch of SQL statements in C:\test.sql and execute them with the source command. Such as:
Mysql> Use JBPM
Database changed
Mysql> Source C:\test.sql

MySQL TRUNCATE table and Source command