SQL Reference

Quick Reference

The SET keyword is used with UPDATE to specify which columns and values should be updated in a table.

The following updates the city for customer 127 to Los Angeles.

UPDATE Customers
SET city = 'Los Angeles'
WHERE customer_id = 127;

SQL Notes:

  • Any work being done to modify the structure of a database or delete tables or the the database itself should only be done after making a recent backup

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