sql - Join two tables to get common data based on a column -


i have 2 tables:

  • table1 columns cola, colb, colc
  • table2 columns colx, coly, colz

i'm trying rows table1 have colc values match table2 on colz.

i tried following:

select table1.cola,table1.colb,table1.colc  table1 inner join table2 on table1.colc = table2.colz

this not seem work result of query had 20 times number of rows present in table1.

any sincerely appreciated.

you can use exists this.

select table1.cola,table1.colb,table1.colc table1  exists (select 1 table2 table1.colc = table2.colz)

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