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DATEDIFF

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

Subtract two SQL DATE types (represented by java.sql.Date).

This function comes in two flavours:

MySQL 2 argument version

In MySQL, there is a 2 argument verison of the DATEDIFF() function, where the result produces the number of days between the two dates. The argument order is in the order of the difference notation: end_date - start_date

SELECT DATEDIFF(
  DATE '2020-02-03',
  DATE '2020-02-01');
create.select(dateDiff(
  Date.valueOf("2020-02-03"),
  Date.valueOf("2020-02-01"))).fetch();

The result being

+------------+
| datediff   |
+------------+
|          2 |
+------------+

Dialect support

This example using jOOQ:

dateDiff(Date.valueOf("2020-02-03"), Date.valueOf("2020-02-01"))

Translates to the following dialect specific expressions:

Access

datediff('d', #2020/02/01#, #2020/02/03#)

ASE, Sybase

datediff(DAY, '2020-02-01', '2020-02-03')

Aurora MySQL, MemSQL, MySQL

datediff({d '2020-02-03'}, {d '2020-02-01'})

Aurora Postgres, CockroachDB, Oracle, Postgres, YugabyteDB

(DATE '2020-02-03' - DATE '2020-02-01')

BigQuery

date_diff(DATE '2020-02-03', DATE '2020-02-01', DAY)

DB2

(days(DATE '2020-02-03') - days(DATE '2020-02-01'))

Derby

{fn timestampdiff(sql_tsi_day, DATE('2020-02-01'), DATE('2020-02-03')) }

DuckDB, Redshift

datediff('day', DATE '2020-02-01', DATE '2020-02-03')

Exasol

CAST((DATE '2020-02-03' - DATE '2020-02-01') AS int)

Firebird, H2, HSQLDB, Snowflake, Vertica

datediff(DAY, DATE '2020-02-01', DATE '2020-02-03')

Hana

days_between(DATE '2020-02-01', DATE '2020-02-03')

Informix

CAST((DATETIME(2020-02-03) YEAR TO DAY - DATETIME(2020-02-01) YEAR TO DAY) AS integer)

MariaDB

datediff(DATE '2020-02-03', DATE '2020-02-01')

SQLDataWarehouse, SQLServer

datediff(DAY, CAST('2020-02-01' AS date), CAST('2020-02-03' AS date))

SQLite

(strftime('%s', '2020-02-03') - strftime('%s', '2020-02-01')) / 86400

Teradata

CAST((DATE '2020-02-03' - DATE '2020-02-01') AS integer)

Trino

date_diff('day', DATE '2020-02-01', DATE '2020-02-03')

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

SQL Server 3 argument version

In SQL Server, there is a 3 argument verison of the DATEDIFF() function, where the result produces the number of date part periods between the two dates, with the dates being TRUNC-ed to the relevant date part. The argument order is in the order of the interval notation: [start_date, end_date]. This version is supported only in jOOQ 3.14+

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