New posts in Update

Effect of an index on update statements where update column is not in an index

Switching values in a column with one update statement

8k row overflow error when updating row of size 5k

How to update 10 million+ rows in MySQL single table as Fast as possible?

Does updating a row with the same value actually update the row?

UPDATE performance where no data changes

INSERT... ON DUPLICATE KEY UPDATE not working as I expect

Adding hstore entries to an uninitialized (NULL) column

Update column with data from another table

UPDATE table based on the same table