Web Reference: Mastering MySQL: UPDATE, DROP, DELETE, and TRUNCATE Commands In this video, we’ll explore the key differences between the UPDATE, DROP, DELETE, and TRUNCATE commands in MySQL. So now, with `SELECT` and `INSERT` and `UPDATE` and `DELETE`, you have all the commands you need to handle what a user would want out of your diary app. And now hopefully you can better imagine which commands are happening behind the scenes when you use your favorite apps every day. The UPDATE statement is used to update or modify one or more records in a table. SET column1 = value1, column2 = value2, ... Note: Be careful when updating records in a table! Notice the . WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated.
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