Oracle Update Statements

There are several methods in Oracle SQL to update records in one table based on the content of another table.

Here, I give some of those methods and some guidance on where they might be most appropriate.

The Basics

Oracle uses a 'correlated subquery' syntax which looks like this:

UPDATE …
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PGP Signatures on Email

Date Tags pgp / email

You're probably here because you've received an email from me with an attachment called 'signature.asc' or with lines at the top similar to:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

and a section at the bottom which looks something like:

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (MingW32)
iEYEARECAAYFAkmr2UAACgkQmnCt8c1NQ98pcACdEpZpqJYifkH0NvE6krEjzA9T …
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