Oracle 5.0 Reference Manual page 2998

FROM band_downloads,band_mp3
WHERE band_downloads.userid = 9
AND band_mp3.id = band_downloads.mp3id
ORDER BY band_downloads.id DESC;
In the second case, using MySQL Server 3.23.x, you may get two identical rows in the result set
(because the values in the hidden
Note that this happens only for queries that do not have the
• If you execute a
PROCEDURE
does not transform the columns.
• Creation of a table of type
types.
• If you use
ALTER TABLE
a normal index on the
non-UNIQUE key in the table. This is because
indexes to be able to detect duplicate keys as early as possible.
Known Issues in MySQL
column may differ).
id
on a query that returns an empty set, in some cases the
does not check whether the underlying tables are compatible
MERGE
to add a index to a table used in a
UNIQUE
table, the key order is different for the tables if there was an old,
MERGE
2978
ORDER BY
puts
ALTER TABLE UNIQUE
columns in the result.
PROCEDURE
table and then add
MERGE
indexes before normal