Available in versions: Dev (3.19) | Latest (3.18) | 3.17 | 3.16 | 3.15 | 3.14 | 3.13 | 3.12 | 3.11 | 3.10 | 3.9
LAST_VALUE
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The LAST_VALUE window function allows for getting the value of an expression evaluated on the last row of the window.
SELECT
ID,
last_value(ID) OVER (ORDER BY ID
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING),
last_value(ID) OVER (ORDER BY ID
ROWS BETWEEN CURRENT ROW AND 1 FOLLOWING)
FROM
BOOK;
create.select(
BOOK.ID,
lastValue(BOOK.ID).over(orderBy(BOOK.ID)
.rowsBetweenUnboundedPreceding().andUnboundedFollowing()),
lastValue(BOOK.ID).over(orderBy(BOOK.ID)
.rowsBetweenCurrentRow().andFollowing(1)))
.from(BOOK)
.fetch();
Producing:
+----+------------+------------+ | id | last_value | last_value | +----+------------+------------+ | 1 | 4 | 2 | | 2 | 4 | 3 | | 3 | 4 | 4 | | 4 | 4 | 4 | +----+------------+------------+
- The window frame clause is applied to
LAST_VALUE. The default ofCURRENT ROWbeing the upper bound is questionable, so an explicit upper bound is usually required. -
LAST_VALUEsupports the optional NULL treatment clause.
Dialect support
This example using jOOQ:
lastValue(BOOK.ID).over(orderBy(BOOK.ID))
Translates to the following dialect specific expressions:
-- AURORA_POSTGRES, BIGQUERY, COCKROACHDB, DB2, DUCKDB, EXASOL, FIREBIRD, H2, HANA, INFORMIX, MARIADB, MEMSQL, MYSQL, -- ORACLE, POSTGRES, REDSHIFT, SNOWFLAKE, SQLDATAWAREHOUSE, SQLITE, SQLSERVER, SYBASE, TERADATA, TRINO, VERTICA, YUGABYTEDB last_value(BOOK.ID) OVER (ORDER BY BOOK.ID) -- ACCESS, ASE, AURORA_MYSQL, DERBY, HSQLDB /* UNSUPPORTED */
(These are currently generated with jOOQ 3.19, see #10141), or translate your own on our website
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