How to replace 0 with empty?# Database - 数据库
n*u
1 楼
old_table has column "ICQ", type is varchar.
Well ICQ number is always int type.
So when I created new_table, I specified ICQ as int.
Then I insert old_table into new_table,
in new_table, the ICQ becomes 0 if it's empty in Old_table
Can I make ICQ empty in new_table?
Well ICQ number is always int type.
So when I created new_table, I specified ICQ as int.
Then I insert old_table into new_table,
in new_table, the ICQ becomes 0 if it's empty in Old_table
Can I make ICQ empty in new_table?