Updating a mysql database

To update a record in any table it is required to locate that record by using a conditional clause.

Below example uses primary key to match a record in employee table.

If IGNORE is provided, all errors encountered during the update are ignored.

This helps prevent us from overwriting large amounts of data accidentally.

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Visit Stack Exchange Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Sign up to join this community I am trying to understand how to UPDATE multiple rows with different values and I just don't get it.

For account upgrade instructions, see Section, “Migrating Away from Pre-4.1 Password Hashing and the mysql_old_password Plugin”.

does not upgrade the contents of the time zone tables or help tables.

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