How to update info already in a table and Delete a row(s) from a table
mysql> UPDATE [table name] SET Select_priv = ‘Y’,Insert_priv = ‘Y’,Update_priv = ‘Y’ where [field name] = ‘user’;
mysql> DELETE from [table name] where [field name] = ‘whatever’;
mysql> UPDATE [table name] SET Select_priv = ‘Y’,Insert_priv = ‘Y’,Update_priv = ‘Y’ where [field name] = ‘user’;
mysql> DELETE from [table name] where [field name] = ‘whatever’;