The jOOQ User Manual : SQL building : Column expressions : Datetime functions : TRUNC | previous : next |
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TRUNC
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
Truncate a datetime value to the precision of a certain org.jooq.DatePart, or DatePart.DAY by default.
SELECT TRUNC(DATE '2020-02-03', 'YYYY');
create.select(trunc(Date.valueOf("2020-02-03", DatePart.YEAR))).fetch();
The result being
+------------+ | trunc | +------------+ | 2020-01-01 | +------------+
Dialect support
This example using jOOQ:
trunc(Date.valueOf("2020-02-03"), DatePart.YEAR)
Translates to the following dialect specific expressions:
-- CUBRID, HSQLDB trunc(DATE '2020-02-03', 'YY') -- DB2, ORACLE trunc(DATE '2020-02-03', 'YYYY') -- H2 PARSEDATETIME(FORMATDATETIME(DATE '2020-02-03', 'yyyy'), 'yyyy') -- INFORMIX trunc(DATETIME(2020-02-03) YEAR TO DAY, 'YEAR') -- POSTGRES, VERTICA date_trunc('year', DATE '2020-02-03') -- ACCESS, ASE, AURORA_MYSQL, AURORA_POSTGRES, BIGQUERY, COCKROACHDB, DERBY, EXASOL, FIREBIRD, HANA, IGNITE, MARIADB, MEMSQL, -- MYSQL, REDSHIFT, SNOWFLAKE, SQLDATAWAREHOUSE, SQLITE, SQLSERVER, SYBASE, TERADATA /* UNSUPPORTED */
(These are currently generated with jOOQ 3.15, see #10141)
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