![]() Free PHP tutorials by example. Multiple WHERE conditions. MySQL allows you to perform more complicated queries by using AND and OR in your WHERE clause to tie conditions together. Condition; In the UPDATE statement: • First, specify the table name that you want to update data after the UPDATE keyword. • Second, the SET clause specifies which column that you want to modify and the new values. To update multiple columns, you use a list comma-separated assignments. You supply the value in each column’s assignment in the form of a literal value, an expression, or a. • Third, specify which rows to be updated using a condition in the. The WHERE clause is optional. If you omit the WHERE clause, the UPDATE statement will update all rows in the table.
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November 2018
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