如何在MySQL中用零填充数字？

Question

I want to execute this kind of a query:

SELECT 00005

Now its result showing as 5. It not taking '0000'. How to get the correct value. Any body can help me.

Answer 1

00005不是数字，而是一个字符串...

SELECT '00005'

Answer 2

您可以使用LPAD函数：

SELECT LPAD(5, 5, 0)

Answer 3

You can set a ZEROFILL property, eg -

CREATE TABLE table1(
  column1 INT(5) UNSIGNED ZEROFILL DEFAULT NULL
);

SELECT * FROM table1;
+---------+
| column1 |
+---------+
|   00005 |
|   00025 |
+---------+