MYSQL - Concatenate two tables

Question

I have two tables as follows:

    TABLE A                    TABLE B
 StuID | actid              FacID | actid
  3       12                  98      17
  5           


        

Answer 1

its too easy select tableA.stuId,tableA.actId, tableB.facId,tableB.actId from tableA,tableB where tableA.actid=tableB.actid;`