PostgreSQL: floor Function
This PostgreSQL tutorial explains how to use the PostgreSQL floor function with syntax and examples.
Description
The PostgreSQL floor function returns the largest integer value that is equal to or less than a number.
Syntax
The syntax for the floor function in PostgreSQL is:
floor( number )
Parameters or Arguments
- number
- The value used to find the largest integer value.
Applies To
The floor function can be used in the following versions of PostgreSQL:
- PostgreSQL 9.4, PostgreSQL 9.3, PostgreSQL 9.2, PostgreSQL 9.1, PostgreSQL 9.0, PostgreSQL 8.4
Example
Let's look at some PostgreSQL floor function examples and explore how to use the floor function in PostgreSQL.
For example:
postgres=# SELECT floor(32.65); floor ------- 32 (1 row) postgres=# SELECT floor(32.1); floor ------- 32 (1 row) postgres=# SELECT floor(32); floor ------- 32 (1 row) postgres=# SELECT floor(-32.65); floor ------- -33 (1 row) postgres=# SELECT floor(-32.1); floor ------- -33 (1 row) postgres=# SELECT floor(-32); floor ------- -32 (1 row)
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