Only the partitions (or subpartitions) listed are checked for matches, and a row that is not in any of these partitions or subpartitions is not updated, whether it satisfies the clause, are flagged as unsafe for statement-based replication.

(This is because the order in which the rows are updated determines which rows are ignored.) With this change, such statements produce a warning in the log when using statement-based mode and are logged using the row-based format when using mode.

To update multiple columns, you use a list comma-separated assignments.Hi all, I am very new to PHP and MYSQL and have a class assignment I need help with.I am trying to make a page with an HTML form that will update my MYSQL database.For multiple-table updates, there is no guarantee that assignments are carried out in any particular order.If you set a column to the value it currently has, My SQL notices this and does not update it.(Bug #11758262, Bug #50439) See Section 16.2.1.3, “Determination of Safe and Unsafe Statements in Binary Logging”, for more information.If you access a column from the table to be updated in an expression, assignments are generally evaluated from left to right.