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Clarification of legal database/table/column names.

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Clarification of NOW() behaviour.
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unknown 2002-06-27 09:03:23 +10:00
commit 90c5ac4600
1 changed files with 7 additions and 1 deletions
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Docs/manual.texi
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@ -28310,7 +28310,9 @@ you must always quote it with @code{`} when you use it:
mysql> SELECT * FROM `select` WHERE `select`.id > 100;
@end example
In previous versions of MySQL, the name rules are as follows:
@xref{Reserved words}.
In MySQL versions prior to 3.23.6, the name rules are as follows:
@itemize @bullet
@item
@ -32604,6 +32606,10 @@ mysql> SELECT NOW() + 0;
-> 19971215235026
@end example
Note that @code{NOW()} is only evaluated once per query, namely at the
start of query execution. This means that multiple references to
@code{NOW()} within a single query will always give the same time.
@findex UNIX_TIMESTAMP()
@item UNIX_TIMESTAMP()
@itemx UNIX_TIMESTAMP(date)