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HOUR
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
Extract the HOUR value from a datetime value.
The HOUR function is a short version of the EXTRACT, passing a DatePart.HOUR value as an argument.
SELECT hour(TIMESTAMP '2020-02-03 15:30:45');
create.select(hour(Timestamp.valueOf("2020-02-03 15:30:45"))).fetch();
The result being
+------+ | hour | +------+ | 15 | +------+
Dialect support
This example using jOOQ:
hour(Timestamp.valueOf("2020-02-03 15:30:45"))
Translates to the following dialect specific expressions:
Access
datepart('h', #2020/02/03 15:30:45#)
ASE, Sybase
datepart(hh, '2020-02-03 15:30:45.0')
Aurora MySQL, Aurora Postgres, CockroachDB, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, MariaDB, MySQL, Oracle, Postgres, Redshift, Snowflake, Teradata, Trino, Vertica, YugabyteDB
extract(HOUR FROM TIMESTAMP '2020-02-03 15:30:45.0')
BigQuery
extract(HOUR FROM DATETIME '2020-02-03 15:30:45.0')
ClickHouse
extract(HOUR FROM TIMESTAMP '2020-02-03 15:30:45')
DB2
HOUR(TIMESTAMP '2020-02-03 15:30:45.0')
Derby
HOUR(TIMESTAMP('2020-02-03 15:30:45.0'))
Informix
CAST(DATETIME(2020-02-03 15:30:45.0) YEAR TO FRACTION AS CAST(DATETIME HOUR TO HOUR AS CAST(CHAR(2) AS INT)))
MemSQL
extract(HOUR FROM {ts '2020-02-03 15:30:45.0'})
SQLDataWarehouse, SQLServer
datepart(hh, CAST('2020-02-03 15:30:45.0' AS DATETIME2))
SQLite
CAST(strftime('%H', '2020-02-03 15:30:45.0') AS int)
Generated with jOOQ 3.20. Translate your own SQL on our website
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