Full SQL Server support since 2022. Partial BigQuery support since 2.0. Full H2 support since 1.4.199. Partial SQLite support since 3.40.0. Full MySQL support since 8.0.11. Partial MariaDB support since 10.10. Full Oracle DB support since 11gR2. Partial Db2 (LUW) support since 11.5.7. Partial PostgreSQL support since 15. Apache Derby BigQuery Db2 (LUW) H2 MariaDB MySQL Oracle DB PostgreSQL SQL Server SQLite 2005 2007 2009 2011 2013 2015 2017 2019 2021 ⚠ 3.25.0 - 3.40.0 a ⊘ 3.5.7 - 3.23.1 ✓ 2022+ a ⚠ 2012 - 2019 a ⊘ 2008R2 ⚠ 8.4 - 15 a ⊘ 8.3 ✓ 11gR2+ a ⚠ 11gR1 a ✓ 8.0.11+ ⊘ 5.0 - 5.7 ⚠ 10.2 - 10.10 a ⊘ 5.1 - 10.1 ✓ 1.4.199+ ⊘ 1.4.191 ⚠ 9.7 - 11.5.7 a ⚠ 2.0 a ⊘ 10.15.1.3 - 10.16.1.1 The last_value(…) window function evaluates its argument using the last row defined by the over clause:
SELECT LAST_VALUE(<expr>) OVER (ORDER BY …)
FROM …Default Framing Applies If there is no explicit framing clause the following default applies:
RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROWThat means, the last_value() function cannot see beyond the ties to the current row. Open the frame to bring the last row into reach:
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING Normative References The last_value() window function is defined in ISO/IEC 9075:2016-2 as part of optional feature T617, “FIRST_VALUE and LAST_VALUE functions” .
About the Author Markus Winand is the SQL Renaissance Ambassador. He is on a mission to introduce developers to the evolution of SQL in the 21st century . Markus can be hired as trainer, speaker and consultant via winand.at .
