ALTER DATABASE compatibility level (Transact-SQL) - SQL Server
https://learn.microsoft.com/en-us/sql/t-sql/statements/alter-database-transact-sql-compatibility-level?view=sql-server-ver16
OverviewArgumentsBest practices for upgrading database compatibility levelRemarksCompatibility levels and database engine upgradesCompatibility levels and stored proceduresUse compatibility level for backward compatibilityDifferences between compatibility levelsDifferences between compatibility level 130 and level 140Differences between compatibility level 120 and level 130 The database compatibility level setting provides backward compatibility with earlier versions of …Starting with compatibility mode 130, any new query plan affecting fixes and features have been intentionally added only to the new compatibility level. This has been done in order to minimize the risk during upgrades that arise from performance degradation due to query plan changes po… From an application perspective, use the lower compatibility level as a safer migration path to w…For more information, including the recommended workflow for upgrading database compatibility level, see Best Practices for upgrading database compatibility level.
The database compatibility level setting provides backward compatibility with earlier versions of …Starting with compatibility mode 130, any new query plan affecting fixes and features have been intentionally added only to the new compatibility level. This has been done in order to minimize the risk during upgrades that arise from performance degradation due to query plan changes po…
From an application perspective, use the lower compatibility level as a safer migration path to w…For more information, including the recommended workflow for upgrading database compatibility level, see Best Practices for upgrading database compatibility level.
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