Hi,
A SQL query on the existence of columns in two tables. For example, tables A and B have many columns, respectively, such as COLA1, COLA2, COLAM, and COLB1, COLB2, COLBN. I wish to write a SQL query to check whether Table C's columns (COLC1, COLC2, COLCL) exist in Table A and B. If possible, I prefer not to answer the question with the information_sch ema.columns, but use the joins/subqueries between A and B.
Thanks in advance!
-CUQ
2  1313 
You can't do it with joins on A and B because you don't know which columns to do the joins on.information_ schema is best for this. Why don't you want to use it?
@r035198x
Thank you for the advice. How can I do it with information_sch ema ?
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