ROUND

Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition

The ROUND() function rounds a numeric value to its nearest integer, or optionally, to the nearest decimal precision.

SELECT 
  round(1.7), 
  round(-1.7);

create.select(
  round(1.7), 
  round(-1.7)).fetch();

The result being

+-------+-------+
| round | round |
+-------+-------+
|     2 |    -2 |
+-------+-------+

Dialect support

This example using jOOQ:

round(1.7)

Translates to the following dialect specific expressions:

-- ACCESS, AURORA_MYSQL, AURORA_POSTGRES, BIGQUERY, DB2, EXASOL, FIREBIRD, HANA, HSQLDB, INFORMIX, MARIADB, MEMSQL, MYSQL, 
-- ORACLE, POSTGRES, REDSHIFT, SNOWFLAKE, SQLITE, TERADATA, VERTICA, YUGABYTE
round(1.7E0)

-- ASE, SQLDATAWAREHOUSE, SQLSERVER, SYBASE
round(1.7E0, 0)

-- COCKROACHDB
round(CAST(CAST(1.7E0 AS double precision) AS numeric))

-- DERBY
CASE
  WHEN (1.7E0 - floor(1.7E0)) < 5E-1 THEN floor(1.7E0)
  ELSE ceil(1.7E0)
END

-- H2
round(CAST(1.7E0 AS double))

(These are currently generated with jOOQ 3.16, see #10141), or translate your own on our website

The jOOQ User Manual : SQL building : Column expressions : Numeric functions : ROUND

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