CEIL

ceil

description

Syntax

T ceil(T x[, d])

If not specified d: returns the smallest integer value less than or equal to x, which is the most common usage. Otherwise, returns the smallest round number that is less than or equal to x and flowing the rules:

If d is specified as literal:
d = 0: just like without d d > 0 or d < 0: the round number would be a multiple of 1/(10^d), or the nearest number of the appropriate data type if 1/(10^d) isn't exact.

Else if d is a column, and x has Decimal type, scale of result Decimal will always be same with input Decimal.

tip

The other alias for this function are dceil and ceiling.

example

mysql> select ceil(1);
+-----------+
| ceil(1.0) |
+-----------+
|         1 |
+-----------+
mysql> select ceil(2.4);
+-----------+
| ceil(2.4) |
+-----------+
|         3 |
+-----------+
mysql> select ceil(-10.3);
+-------------+
| ceil(-10.3) |
+-------------+
|         -10 |
+-------------+
mysql> select ceil(123.45, 1), ceil(123.45), ceil(123.45, 0), ceil(123.45, -1);
+-----------------+--------------+-----------------+------------------+
| ceil(123.45, 1) | ceil(123.45) | ceil(123.45, 0) | ceil(123.45, -1) |
+-----------------+--------------+-----------------+------------------+
|           123.5 |          124 |             124 |              130 |
+-----------------+--------------+-----------------+------------------+
mysql> SELECT number
    -> , ceil(number * 2.5, number - 1) AS c_decimal_column
    -> , ceil(number * 2.5, 0) AS c_decimal_literal
    -> , ceil(cast(number * 2.5 AS DOUBLE), number - 1) AS c_double_column
    -> , ceil(cast(number * 2.5 AS DOUBLE), 0) AS c_double_literal
    -> FROM test_enhanced_round
    -> WHERE rid = 1;
+--------+------------------+-------------------+-----------------+------------------+
| number | c_decimal_column | c_decimal_literal | c_double_column | c_double_literal |
+--------+------------------+-------------------+-----------------+------------------+
|      1 |              3.0 |                 3 |               3 |                3 |
+--------+------------------+-------------------+-----------------+------------------+

keywords

CEIL, DCEIL, CEILING