public inbox for [email protected]  

help / color / mirror / Atom feed

From: Rich Shepard <[email protected]>
To: [email protected]
Subject: Updating 457 rows in a table
Date: Sun, 19 May 2024 09:54:46 -0700 (PDT)
Message-ID: <[email protected]> (raw)

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

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected]
  Subject: Re: Updating 457 rows in a table
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox