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