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DECADE

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

Extract the DECADE value from a datetime value.

The DECADE function is a short version of the EXTRACT, passing a DatePart.DECADE value as an argument.

SELECT decade(DATE '2020-02-03');
create.select(decade(Date.valueOf("2020-02-03"))).fetch();

The result being

+--------+
| decade |
+--------+
|    202 |
+--------+

Dialect support

This example using jOOQ:

decade(Date.valueOf("2020-02-03"))

Translates to the following dialect specific expressions:

Access

(cdec((datepart('yyyy', #2020/02/03 00:00:00#) / 10)) - ((datepart('yyyy', #2020/02/03 00:00:00#) / 10) < cdec((datepart('yyyy', #2020/02/03 00:00:00#) / 10))))

ASE, Sybase

floor((datepart(yy, '2020-02-03 00:00:00.0') / 10))

Aurora MySQL, MemSQL, MySQL

floor((extract(YEAR FROM {ts '2020-02-03 00:00:00.0'}) / 10))

Aurora Postgres, Postgres, YugabyteDB

extract(DECADE FROM TIMESTAMP '2020-02-03 00:00:00.0')

BigQuery

floor((extract(YEAR FROM DATETIME '2020-02-03 00:00:00.0') / 10))

CockroachDB, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, MariaDB, Oracle, Redshift, Snowflake, Teradata, Trino, Vertica

floor((extract(YEAR FROM TIMESTAMP '2020-02-03 00:00:00.0') / 10))

DB2

floor((YEAR(TIMESTAMP '2020-02-03 00:00:00.0') / 10))

Derby

floor((YEAR(TIMESTAMP('2020-02-03 00:00:00.0')) / 10))

Informix

floor((YEAR(DATETIME(2020-02-03 00:00:00.0) YEAR TO FRACTION) / 10))

SQLDataWarehouse, SQLServer

floor((datepart(yy, CAST('2020-02-03 00:00:00.0' AS DATETIME2)) / 10))

SQLite

floor((CAST(strftime('%Y', '2020-02-03 00:00:00.0') AS int) / 10))

(These are currently generated with jOOQ 3.20, see #10141), or translate your own on our website

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