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Asked: 2026-06-09T00:34:51+00:00

I have 2 databases named DB1 and DB2 with a table called movies .

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I have 2 databases named DB1 and DB2 with a table called movies. movie contains movie_name, year, synopsis, AKA etc. As you can see synopsis and AKA columns are empty. I want to match two columns (movie_name and year) and insert identical results into DB1’s empty columns.

DB1.movies

movie_name | year | synopsis | AKA
----------------------------------------
titanic    | 1997 |          |
matrix     | 1999 |          |
alien      | 1979 |          |

DB2.movies

movie_name | year | synopsis | AKA
----------------------------------------
titanic    | 1997 | xxxxxxx  | XXX
matrix     | 1999 | yyyyyyy  | YYY
alien      | 1979 | zzzzzzz  | ZZZ

After then, DB1.movies should look like this:

DB1.movies

movie_name | year | synopsis | AKA
----------------------------------------
titanic    | 1997 | xxxxxxx  | XXX
matrix     | 1999 | yyyyyyy  | YYY
alien      | 1979 | zzzzzzz  | ZZZ

What can I do?
Thanks!

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1 Answer

  1. Editorial Team

    This should do the trick:

    UPDATE db1.table1 JOIN db2.table2 on db1.table1.movie_name = db2.table2.movie_name AND db1.table1.year = db2.table2.year SET db1.table1.synopsis = db2.table2.synopsis, db1.table2.AKA = db2.table2.AKA

    Note I didn’t know the table names for the tables in db1 and db2, so I just called them table1 and table2 respectively.

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