mysql - how many columns is too many?

Question

I\'m setting up a table that might have upwards of 70 columns. I\'m now thinking about splitting it up as some of the data in the columns won\'t be needed every time the tab

Answer 1

Having too many columns in the same table can cause huge problems in the replication as well. You should know that the changes that happen in the master will replicate to the slave.. for example, if you update one field in the table, the whole row will be w