mysql tables

[maryer]

I have 2 mysql tables (request and admin parts) for the one form. now i need to merge them into one without losing any data. How can i manage to merge them (copy data from the admin to the request table?). They are both use the same ID number, and for each form there is one ID number in both tables. Should I update table requests set bla bla bla where id=x? separately or there is another way to make them into one table, because both tables are big enough, so it will take a long time to update each id separately.
Thank you in advance

 

[KarveR]

something like this:

INSERT INTO tableA (a.col1,a.col2) SELECT b.col1,b.col2 FROM tableA a, tableB b WHERE
a.id = b.id;
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