repeat

description

Syntax

VARCHAR repeat(VARCHAR str, INT count)

将字符串 str 重复 count 次输出，count 小于1时返回空串，str，count 任一为NULL时，返回 NULL

example

1. mysql> SELECT repeat("a", 3);
2. +----------------+
3. | repeat('a', 3) |
4. +----------------+
5. | aaa            |
6. +----------------+

8. mysql> SELECT repeat("a", -1);
9. +-----------------+
10. | repeat('a', -1) |
11. +-----------------+
12. |                 |
13. +-----------------+

keyword

REPEAT,