Subject update using data from multiple tables
Author Andrew Gould
I am thinking about converting a Decision Support
database from MySQL. The UPDATE statement in MySQL
doesn't support updating the values in one table using
values or criteria from multiple tables. Thus, my
question: Does Interbase support the updating of
values in one table based upon criteria or data in
other tables?

An example of what I'm looking for follows:

update table1
set table1.column1 = table2.column3
from table1, table2
where table1.column2 = table2.column2;

Thanks,

Andrew Gould

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