TRUNCATE
truncate
description
Syntax
DOUBLE truncate(DOUBLE x, INT d)
Numerically truncate x
according to the number of decimal places d
.
The rules are as follows:
When d > 0
: keep d
decimal places of x
When d = 0
: remove the fractional part of x
and keep only the integer part
When d < 0
: Remove the fractional part of x
, and replace the integer part with the number 0
according to the number of digits specified by d
example
mysql> select truncate(124.3867, 2);
+-----------------------+
| truncate(124.3867, 2) |
+-----------------------+
| 124.38 |
+-----------------------+
mysql> select truncate(124.3867, 0);
+-----------------------+
| truncate(124.3867, 0) |
+-----------------------+
| 124 |
+-----------------------+
mysql> select truncate(-124.3867, -2);
+-------------------------+
| truncate(-124.3867, -2) |
+-------------------------+
| -100 |
+-------------------------+
keywords
TRUNCATE