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TRUNC
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The TRUNC() function rounds a numeric value to its nearest integer (or optionally, to a specific decimal precision) that is closer to zero.
SELECT trunc(1.7), trunc(-1.7);
create.select( trunc(1.7), trunc(-1.7)).fetch();
The result being
+-------+-------+ | trunc | trunc | +-------+-------+ | 1 | -1 | +-------+-------+
Dialect support
This example using jOOQ:
trunc(1.7)
Translates to the following dialect specific expressions:
-- ASE CASE WHEN sign(1.7E0) >= 0 THEN (floor((1.7E0 * 1)) / 1) ELSE (ceiling((1.7E0 * 1)) / 1) END -- AURORA_MYSQL, MARIADB, MEMSQL, MYSQL truncate(1.7E0, 0) -- AURORA_POSTGRES, POSTGRES CAST(trunc( CAST(1.7E0 AS numeric), 0 ) AS double precision) -- DB2, FIREBIRD, HSQLDB, INFORMIX, ORACLE, TERADATA, VERTICA trunc(1.7E0, 0) -- DERBY CASE WHEN sign(1.7E0) >= 0 THEN (floor((1.7E0 * 1)) / 1) ELSE (ceil((1.7E0 * 1)) / 1) END -- H2 truncate(CAST(1.7E0 AS double), 0) -- HANA round(1.7E0, 0, round_down) -- SQLDATAWAREHOUSE, SQLSERVER round(1.7E0, 0, 1) -- SYBASE truncnum(1.7E0, 0) -- ACCESS, BIGQUERY, COCKROACHDB, EXASOL, REDSHIFT, SNOWFLAKE, SQLITE, YUGABYTEDB /* UNSUPPORTED */
(These are currently generated with jOOQ 3.18, see #10141), or translate your own on our website
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