SQL - Update Warning! Knowledge Based Info. MySQL Be careful when updating records. If we omit the WHERE clause, ALL records will be updated: Example UPDATE CustomersSET ContactName='Juan'; Try it Yourself » Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsSQL - OR Operator ExampleSQL - Combining AND & ORSQL - Operators in The WHERE ClauseSQL - AND Operator ExampleSQL - ORDER BY ExampleSQL - ORDER BY DESC Example
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