How to update when the defined condition is to find using the join

Hello everyone
I want to update a column of the table, and the value can be found using another table
then, how should I update using the join in the set condition
Suppose there are 2 tables and 5 column are frequent at home
Now, I want to update a column by using join conditions

Suppose that
select a.column5
from table_1 a, table b
Where a.col1=b.col1
and a.col2=b.col2
    .
    .
    .
and a.col8=1000000002
It's the Party join now I want to use guess a.column5 in the fixed part of the update
update b
set b.col5= a.col5

You must use your pk in the query.

update table b
set b.col5= (select a.column5
                          from table_1 a
                      Where b. = a.whatever

This problem is with your query logic... read it again.

Tags: Database

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