Re: Updating 457 rows in a table

Hi Rich,

Based on what I could understand is, here is an example

UPDATE employees
SET salary = salary + 500
WHERE department_id = 'Sales';

Sorry, if I misunderstood your question.

Regards,
Muhammad Ikram
Bitnine

On Sun, May 19, 2024 at 9:54 PM Rich Shepard <rshepard(at)appl-ecosys(dot)com>
wrote:

> Searching the postgresql doc for UPDATE the examples I find show updating
> one or a few rows in a table. I have 457 rows to update in a table.
>
> I could write a .sql script with 457 lines, each updating one row of the
> table. My web search for `sql: update table rows from a file of column
> values' finds pages for single row updates and updating a table from
> another
> table, but neither is what I want.
>
> I want to change a column value in a table based on the value of a
> different
> column in that same table.
>
> Specifically, in the 'people' table I want to change the column 'active'
> from false to true for 457 specific person_id row numbers.
>
> Is there a way to do this without manually writing 457 'update ...' rows in
> a .sql file?
>
> TIA,
>
> Rich
>
>
>
>

--
Muhammad Ikram