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

You can concatenate these two tables by using select, from and where.

Answer 2

select * from table_a where actid = 17
union all
select * from table_b where actid = 17

You may (or may not) need to do something about the ids not being unique, such as

select 'Student', table_a.* from table_a where actid = 17
union all
select 'Faculty', table_b.* from table_b where actid = 17

Answer 3

You want UNION ALL:

(SELECT * FROM tablea) UNION ALL (SELECT * FROM tableb)

I think those parenthese are correct. I remember MySQL being fussy about this.

Answer 4

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