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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3894) Reference Manual: supported functions should be listed in JDBC escape syntax topic
Date Wed, 01 Oct 2008 22:00:47 GMT
Reference Manual: supported functions should be listed in JDBC escape syntax topic
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                 Key: DERBY-3894
                 URL: https://issues.apache.org/jira/browse/DERBY-3894
             Project: Derby
          Issue Type: Bug
          Components: Documentation
    Affects Versions: 10.4.2.0
            Reporter: Kim Haase
            Assignee: Kim Haase
            Priority: Minor


The topic "JDBC escape syntax for fn keyword" (http://db.apache.org/derby/docs/dev/ref/rrefjdbc88908.html)
does not include all the functions listed in Appendix C of the JDBC specification that Derby
supports.

The following numeric functions, listed in Section C.1, are implemented in Derby but not listed
in this topic:

COT(float)
RAND(integer)
SIGN(number)

Three numeric functions listed in Section C.1 are not yet implemented in Derby; they should
be added to this topic when they are. (See DERBY-3893.)

A number of the string functions listed in Section C.2 are not implemented in Derby. Of the
ones that are, the following are not listed in the JDBC escape syntax topic:

LCASE(string)
LENGTH(string)
LTRIM(string)
RTRIM(string)
UCASE(string)

Some of the time and date functions listed in Section C.3 are not implemented in Derby. Of
the ones that are, only two (TIMESTAMPADD and TIMESTAMPDIFF) are listed in the JDBC escape
syntax topic. The following should be added:

CURDATE()
CURTIME()
HOUR(time)
MINUTE(time)
MONTH(date)
SECOND(time)
YEAR(date)

Two of the three system functions listed in Section C.4 are not implemented in Derby. The
one that is, USER(), is not listed in the JDBC escape syntax topic.

The functions should be listed in groups by type of function, and the fonts should conform
with Derby documentation style.


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