Question

I have an a new table with the column below:

id , name , tell , email

By mistake all values of tell & email were set to null.

I have a old backup of this table , without ~200 record (a little old)

How can I update new table with the old backup with just the tell & email columns?

For example export old table data as update query and execute it on the new table?

Answer 1

Try this ::

Update newTable nT
inner join oldTable oT
ON (nT.id=oT.id)
set nT.tell = oT.tell, nT.email=oT.email