Module 13 (Introduction to SQL - Part 2).pdf
Module 13 (Introduction to SQL - Part 2).pdf
Module 13 (Introduction to SQL - Part 2).pdf
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The DELETE VerbThe DELETE verb is a simple and dangerous <strong>SQL</strong>command.You can wipe out large chunks of data with it, sobe careful. Most databases do not support the ideaof UNDO, so you would need <strong>to</strong> res<strong>to</strong>re the datafrom some backup s<strong>to</strong>rage if you jumped the gun.You will nearly always want <strong>to</strong> carefully qualifythe items you want <strong>to</strong> delete with an appropriateWHERE clause.