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MaxCompute:CEIL

Last Updated:Jul 21, 2023

Rounds up value and returns the nearest integer.

Syntax

bigint ceil(<value>)

Parameters

value: required. A value of the DOUBLE or DECIMAL type. If the input value is of the STRING or BIGINT type, the value is implicitly converted into a value of the DOUBLE type before calculation.

Return value

A value of the BIGINT type is returned. If the value of number is null, null is returned.

Sample data

This section provides sample source data and examples for you to understand how to use the functions. In this topic, a table named mf_math_fun_t is created and data is inserted into the table. Sample statements:

create table if not exists mf_math_fun_t(
     int_data     int,
     bigint_data  bigint,
     double_data  double,
     decimal_data decimal,
     float_data   float,
     string_data  string
    );
insert into mf_math_fun_t values
(null, -10, 0.525, 0.525BD, cast(0.525 as float), '10'),
(-20, null, -0.1, -0.1BD, cast(-0.1 as float), '-10'),
(0, -1, null, 20.45BD, cast(-1 as float), '30'),
(-40, 4, 0.89, null, cast(0.89 as float), '-30'),
(5, -50, -1, -1BD, null, '50'),
(-60, 6, 1.5, 1.5BD, cast(1.5 as float), '-50'),
(-1, -70, -7.5, -7.5BD, cast(-7.5 as float),null ),
(-80, 1, -10.2, -10.2BD, cast(-10.2 as float), '-1' ),
(9, -90, 2.58, 2.58BD, cast(2.58 as float), '0'),
(-100, 10, -5.8, -5.8BD, cast(-5.8 as float), '-90');

Query data from the mf_math_fun_t table. Sample statement:

select * from mf_math_fun_t;
-- The following result is returned: 
+------------+-------------+-------------+--------------+------------+-------------+
| int_data   | bigint_data | double_data | decimal_data | float_data | string_data |
+------------+-------------+-------------+--------------+------------+-------------+
| NULL       | -10         | 0.525       | 0.525        | 0.525      | 10          |
| -20        | NULL        | -0.1        | -0.1         | -0.1       | -10         |
| 0          | -1          | NULL        | 20.45        | -1.0       | 30          |
| -40        | 4           | 0.89        | NULL         | 0.89       | -30         |
| 5          | -50         | -1.0        | -1           | NULL       | 50          |
| -60        | 6           | 1.5         | 1.5          | 1.5        | -50         |
| -1         | -70         | -7.5        | -7.5         | -7.5       | NULL        |
| -80        | 1           | -10.2       | -10.2        | -10.2      | -1          |
| 9          | -90         | 2.58        | 2.58         | 2.58       | 0           |
| -100       | 10          | -5.8        | -5.8         | -5.8       | -90         |
+------------+-------------+-------------+--------------+------------+-------------+

Example: static data

-- The return value is 2. 
select ceil(1.1);
-- The return value is -1. 
select ceil(-1.1);
-- The return value is null. 
select ceil(null);

Example: table data

Round up a number based on the Sample data. Sample statement:

select ceil(bigint_data) as bigint_new, ceil(double_data) as double_new, ceil(decimal_data) as decimal_new, ceil(string_data) as string_new from mf_math_fun_t;

The following result is returned:

+------------+------------+-------------+------------+
| bigint_new | double_new | decimal_new | string_new |
+------------+------------+-------------+------------+
| -10        | 1          | 1           | 10         |
| NULL       | 0          | 0           | -10        |
| -1         | NULL       | 21          | 30         |
| 4          | 1          | NULL        | -30        |
| -50        | -1         | -1          | 50         |
| 6          | 2          | 2           | -50        |
| -70        | -7         | -7          | NULL       |
| 1          | -10        | -10         | -1         |
| -90        | 3          | 3           | 0          |
| 10         | -5         | -5          | -90        |
+------------+------------+-------------+------------+

Related functions

CEIL is a mathematical function. For more information about functions related to data computing and conversion, see Mathematical functions.