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, CockroachDB, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, MariaDB, MySQL, Oracle, Redshift, Snowflake, Teradata, Trino, Vertica
floor((extract(YEAR FROM TIMESTAMP '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))
ClickHouse
floor((extract(YEAR FROM TIMESTAMP '2020-02-03 00:00:00') / 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))
MemSQL
floor((extract(YEAR FROM {ts '2020-02-03 00:00:00.0'}) / 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))
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