Question

I have some MySQL databases that have several tables that contain (amongst others) some DATETIME columns. I am searching for a way to add some amount of time (say one year) to all DATETIME columns in the whole database.

This can be useful if the system-time was wrong when the data was originally written to the database.

OR, as in my case

to create recent DEMO-data for an application out of historical data.

• Is there a way to shift all DATETIME fields in a Database at once?
• If not, How can the DATATIME column of all entries in ONE table be shifted (i.e. add some offset)?

thanks for your answers!

Answer 1

UPDATE table SET date_column = DATE_ADD(date_column, INTERVAL 1 YEAR);

This should do the trick.