Tag: rules

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Tips for using SQL Server 2017 triggers

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Tips for using SQL Server 2017 triggers Try to use CHECK constraints instead of triggers whenever possible. Constraints are much more efficient than triggers and can boost performance. Constraints are also more consistent and reliable in comparison with triggers, because you can make errors when you write your own code to perform the same actions as the constraints. So, you...

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Tips for using constraints in SQL Server 2017

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Tips for using constraints in SQL Server 2017 Use cascading referential integrity constraints instead of triggers whenever possible. For example, if you need to make cascading deletes or updates, specify the ON DELETE or ON UPDATE clause in the REFERENCES clause of the CREATE TABLE or ALTER TABLE statement. The cascading referential integrity constraints are much more efficient than triggers...

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Tips for using constraints in SQL Server 2014

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Tips for using constraints in SQL Server 2014 Use CHECK constraints instead of rules. Rules are provided for backward compatibility and have been replaced by CHECK constraints. Constraints are much more efficient than rules and can boost performance. Rules have some restrictions. For example, only one rule can be applied to a column, but multiple CHECK constraints can be applied....

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