SQL删除语句添加表别名：DELETE FROM table_name t WHERE t.id=1;报错了。
Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 't where t.id=1' at line 1
原因，删除语句时要么不使用表别名，要么在DELETE后面添加上表别名。
格式：delete <alias> from <table> <alias> where <alias>.<field>...