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><DIV
CLASS="TITLEPAGE"
><H1
CLASS="title"
>XXII. DB++ Functions</H1
><DIV
CLASS="PARTINTRO"
><A
NAME="AEN18208"
></A
><DIV
CLASS="warning"
><P
></P
><TABLE
CLASS="warning"
BORDER="1"
WIDTH="100%"
><TR
><TD
ALIGN="CENTER"
><B
>Warning</B
></TD
></TR
><TR
><TD
ALIGN="LEFT"
><P
>This extension is
<SPAN
CLASS="emphasis"
><I
CLASS="emphasis"
>EXPERIMENTAL</I
></SPAN
>. The behaviour of this extension --
including the names of its functions and anything else documented
about this extension -- may change without notice in a future release of PHP. 
Use this extension at your own risk.</P
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbplus.intro"
></A
>Introduction</H1
><P
>&#13;     db++, made by the German company <A
HREF="http://www.concept-asa.de/"
TARGET="_top"
>Concept asa</A
>, is a relational
     database system with high performance and low memory and disk
     usage in mind. While providing SQL as an additional language
     interface, it is not really a SQL database in the first place but
     provides its own AQL query language which is much more influenced
     by the relational algebra then SQL is.
    </P
><P
>&#13;     Concept asa always had an interest in supporting open source
     languages, db++ has had Perl and Tcl call interfaces for years
     now and uses Tcl as its internal stored procedure language.
    </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbplus.requirements"
></A
>Requirements</H1
><P
>&#13;     This extension relies on external client libraries so you have
     to have a db++ client installed on the system you want to use
     this extension on.
    </P
><P
>&#13;     <A
HREF="http://www.concept-asa.de/"
TARGET="_top"
>Concept asa</A
> provides
     <A
HREF="http://www.concept-asa.de/down-eng.html"
TARGET="_top"
>db++ Demo versions</A
>
     and <A
HREF="http://www.concept-asa.de/downloads/doc-eng.tar.gz"
TARGET="_top"
>documentation</A
> 
     for Linux, some other UNIX versions. There is also a Windows 
     version of db++, but this extension doesn't support it (yet).      
    </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbplus.installation"
></A
>Installation</H1
><P
>&#13;     In order to build this extension yourself you need the db++
     client libraries and header files to be installed on your system 
     (these are included in the db++ installation archives by default).
     You have to run <B
CLASS="command"
>configure</B
> with option
     <TT
CLASS="option"
>--with-dbplus</TT
> to build this extension.
    </P
><P
>&#13;     <B
CLASS="command"
>configure</B
> looks for the client libraries and
     header files under the default paths
     <TT
CLASS="filename"
>/usr/dbplus</TT
>,
     <TT
CLASS="filename"
>/usr/local/dbplus</TT
> and
     <TT
CLASS="filename"
>/opt/dblus</TT
>.  If you have installed db++ in a
     different place you have add the installation path to the
     <B
CLASS="command"
>configure</B
> option like this:
     <TT
CLASS="option"
>--with-dbplus=/your/installation/path</TT
>.
    </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbplus.configuration"
></A
>Runtime Configuration</H1
><P
>This extension has no configuration directives defined in <TT
CLASS="filename"
>php.ini</TT
>.</P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbplus.resources"
></A
>Resource Types</H1
><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="dbplus.resources.relation"
></A
>dbplus_relation</H2
><P
>&#13;      Most db++ functions operate on or return
      <TT
CLASS="parameter"
><I
>dbplus_relation</I
></TT
> resources. A
      <TT
CLASS="parameter"
><I
>dbplus_relation</I
></TT
> is a handle to a stored
      relation or a relation generated as the result of a query.
     </P
></DIV
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbplus.constants"
></A
>Predefined Constants</H1
><P
>&#13;The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
</P
><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="dbplus.errorcodes"
></A
>db++ error codes</H2
><P
>&#13;
    <DIV
CLASS="table"
><A
NAME="AEN18253"
></A
><P
><B
>Table 1. DB++ Error Codes</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
ALIGN="LEFT"
VALIGN="MIDDLE"
>PHP Constant</TH
><TH
ALIGN="LEFT"
VALIGN="MIDDLE"
>db++ constant</TH
><TH
ALIGN="LEFT"
VALIGN="MIDDLE"
>meaning</TH
></TR
></THEAD
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
        <TT
CLASS="constant"
><B
>DBPLUS_ERR_NOERR</B
></TT
>

        (<A
HREF="language.types.integer.html"
>integer</A
>)

       </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_NOERR</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Null error condition</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_DUPLICATE</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_DUPLICATE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Tried to insert a duplicate tuple</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_EOSCAN</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_EOSCAN</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>End of scan from rget()</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_EMPTY</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_EMPTY</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Relation is empty (server)</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_CLOSE</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_CLOSE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>The server can't close</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_WLOCKED</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_WLOCKED</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>The record is write locked</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_LOCKED</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_LOCKED</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Relation was already locked</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_NOLOCK</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_NOLOCK</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Relation cannot be locked</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_READ</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_READ</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Read error on relation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_WRITE</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_WRITE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Write error on relation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_CREATE</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_CREATE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Create() system call failed</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_LSEEK</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_LSEEK</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Lseek() system call failed</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_LENGTH</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_LENGTH</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Tuple exceeds maximum length</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_OPEN</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_OPEN</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Open() system call failed</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_WOPEN</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_WOPEN</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Relation already opened for writing</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_MAGIC</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_MAGIC</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>File is not a relation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_VERSION</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_VERSION</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>File is a very old relation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_PGSIZE</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_PGSIZE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Relation uses a different page size</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_CRC</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_CRC</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Invalid crc in the superpage</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_PIPE</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_PIPE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Piped relation requires lseek()</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_NIDX</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_NIDX</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Too many secondary indices</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_MALLOC</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_MALLOC</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Malloc() call failed</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_NUSERS</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_NUSERS</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Error use of max users</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         <TT
CLASS="constant"
><B
>DBPLUS_ERR_PREEXIT</B
></TT
>

         (<A
HREF="language.types.integer.html"
>integer</A
>)

        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_PREEXIT</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Caused by invalid usage</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_ONTRAP</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_ONTRAP</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Caused by a signal</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_PREPROC</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_PREPROC</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Error in the preprocessor</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_DBPARSE</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_DBPARSE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Error in the parser</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_DBRUNERR</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_DBRUNERR</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Run error in db</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_DBPREEXIT</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_DBPREEXIT</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Exit condition caused by prexit() * procedure</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_WAIT</B
></TT
>
          (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_WAIT</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Wait a little (Simple only)</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_CORRUPT_TUPLE</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_CORRUPT_TUPLE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>A client sent a corrupt tuple</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_WARNING0</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_WARNING0</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         The Simple routines encountered a non fatal error which was

         corrected

        </TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_PANIC</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_PANIC</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         The server should not really die but after a disaster

         send ERR_PANIC to all its clients

        </TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_FIFO</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_FIFO</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Can't create a fifo</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_PERM</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_PERM</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Permission denied</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_TCL</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_TCL</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>TCL_error</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_RESTRICTED</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_RESTRICTED</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Only two users</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_USER</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_USER</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;
         An error in the use of the library by an application

         programmer

        </TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&#13;         <TT
CLASS="constant"
><B
>DBPLUS_ERR_UNKNOWN</B
></TT
>
         (<A
HREF="language.types.integer.html"
>integer</A
>)
        </TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>ERR_UNKNOWN</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>&nbsp;</TD
></TR
></TBODY
></TABLE
></DIV
>

   </P
></DIV
></DIV
></DIV
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
HREF="function.dbplus-add.html"
>dbplus_add</A
>&nbsp;--&nbsp;Add a tuple to a relation</DT
><DT
><A
HREF="function.dbplus-aql.html"
>dbplus_aql</A
>&nbsp;--&nbsp;Perform AQL query</DT
><DT
><A
HREF="function.dbplus-chdir.html"
>dbplus_chdir</A
>&nbsp;--&nbsp;Get/Set database virtual current directory</DT
><DT
><A
HREF="function.dbplus-close.html"
>dbplus_close</A
>&nbsp;--&nbsp;Close a relation</DT
><DT
><A
HREF="function.dbplus-curr.html"
>dbplus_curr</A
>&nbsp;--&nbsp;Get current tuple from relation</DT
><DT
><A
HREF="function.dbplus-errcode.html"
>dbplus_errcode</A
>&nbsp;--&nbsp;
     Get error string for given errorcode or last error
    </DT
><DT
><A
HREF="function.dbplus-errno.html"
>dbplus_errno</A
>&nbsp;--&nbsp;Get error code for last operation</DT
><DT
><A
HREF="function.dbplus-find.html"
>dbplus_find</A
>&nbsp;--&nbsp;Set a constraint on a relation</DT
><DT
><A
HREF="function.dbplus-first.html"
>dbplus_first</A
>&nbsp;--&nbsp;Get first tuple from relation</DT
><DT
><A
HREF="function.dbplus-flush.html"
>dbplus_flush</A
>&nbsp;--&nbsp;Flush all changes made on a relation</DT
><DT
><A
HREF="function.dbplus-freealllocks.html"
>dbplus_freealllocks</A
>&nbsp;--&nbsp;Free all locks held by this client</DT
><DT
><A
HREF="function.dbplus-freelock.html"
>dbplus_freelock</A
>&nbsp;--&nbsp;Release write lock on tuple</DT
><DT
><A
HREF="function.dbplus-freerlocks.html"
>dbplus_freerlocks</A
>&nbsp;--&nbsp;Free all tuple locks on given relation</DT
><DT
><A
HREF="function.dbplus-getlock.html"
>dbplus_getlock</A
>&nbsp;--&nbsp;Get a write lock on a tuple</DT
><DT
><A
HREF="function.dbplus-getunique.html"
>dbplus_getunique</A
>&nbsp;--&nbsp;Get a id number unique to a relation</DT
><DT
><A
HREF="function.dbplus-info.html"
>dbplus_info</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-last.html"
>dbplus_last</A
>&nbsp;--&nbsp;Get last tuple from relation</DT
><DT
><A
HREF="function.dbplus-lockrel.html"
>dbplus_lockrel</A
>&nbsp;--&nbsp;Request write lock on relation</DT
><DT
><A
HREF="function.dbplus-next.html"
>dbplus_next</A
>&nbsp;--&nbsp;Get next tuple from relation</DT
><DT
><A
HREF="function.dbplus-open.html"
>dbplus_open</A
>&nbsp;--&nbsp;Open relation file</DT
><DT
><A
HREF="function.dbplus-prev.html"
>dbplus_prev</A
>&nbsp;--&nbsp;Get previous tuple from relation</DT
><DT
><A
HREF="function.dbplus-rchperm.html"
>dbplus_rchperm</A
>&nbsp;--&nbsp;Change relation permissions</DT
><DT
><A
HREF="function.dbplus-rcreate.html"
>dbplus_rcreate</A
>&nbsp;--&nbsp;Creates a new DB++ relation</DT
><DT
><A
HREF="function.dbplus-rcrtexact.html"
>dbplus_rcrtexact</A
>&nbsp;--&nbsp;Creates an exact but empty copy of a relation including indices</DT
><DT
><A
HREF="function.dbplus-rcrtlike.html"
>dbplus_rcrtlike</A
>&nbsp;--&nbsp;Creates an empty copy of a relation with default indices</DT
><DT
><A
HREF="function.dbplus-resolve.html"
>dbplus_resolve</A
>&nbsp;--&nbsp;Resolve host information for relation</DT
><DT
><A
HREF="function.dbplus-restorepos.html"
>dbplus_restorepos</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-rkeys.html"
>dbplus_rkeys</A
>&nbsp;--&nbsp;Specify new primary key for a relation</DT
><DT
><A
HREF="function.dbplus-ropen.html"
>dbplus_ropen</A
>&nbsp;--&nbsp;Open relation file local</DT
><DT
><A
HREF="function.dbplus-rquery.html"
>dbplus_rquery</A
>&nbsp;--&nbsp;Perform local (raw) AQL query</DT
><DT
><A
HREF="function.dbplus-rrename.html"
>dbplus_rrename</A
>&nbsp;--&nbsp;Rename a relation</DT
><DT
><A
HREF="function.dbplus-rsecindex.html"
>dbplus_rsecindex</A
>&nbsp;--&nbsp;
     Create a new secondary index for a relation
    </DT
><DT
><A
HREF="function.dbplus-runlink.html"
>dbplus_runlink</A
>&nbsp;--&nbsp;Remove relation from filesystem</DT
><DT
><A
HREF="function.dbplus-rzap.html"
>dbplus_rzap</A
>&nbsp;--&nbsp;Remove all tuples from relation</DT
><DT
><A
HREF="function.dbplus-savepos.html"
>dbplus_savepos</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-setindex.html"
>dbplus_setindex</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-setindexbynumber.html"
>dbplus_setindexbynumber</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-sql.html"
>dbplus_sql</A
>&nbsp;--&nbsp;Perform SQL query</DT
><DT
><A
HREF="function.dbplus-tcl.html"
>dbplus_tcl</A
>&nbsp;--&nbsp;Execute TCL code on server side</DT
><DT
><A
HREF="function.dbplus-tremove.html"
>dbplus_tremove</A
>&nbsp;--&nbsp;Remove tuple and return new current tuple</DT
><DT
><A
HREF="function.dbplus-undo.html"
>dbplus_undo</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-undoprepare.html"
>dbplus_undoprepare</A
>&nbsp;--&nbsp;???</DT
><DT
><A
HREF="function.dbplus-unlockrel.html"
>dbplus_unlockrel</A
>&nbsp;--&nbsp;Give up write lock on relation</DT
><DT
><A
HREF="function.dbplus-unselect.html"
>dbplus_unselect</A
>&nbsp;--&nbsp;Remove a constraint from relation</DT
><DT
><A
HREF="function.dbplus-update.html"
>dbplus_update</A
>&nbsp;--&nbsp;Update specified tuple in relation</DT
><DT
><A
HREF="function.dbplus-xlockrel.html"
>dbplus_xlockrel</A
>&nbsp;--&nbsp;Request exclusive lock on relation</DT
><DT
><A
HREF="function.dbplus-xunlockrel.html"
>dbplus_xunlockrel</A
>&nbsp;--&nbsp;Free exclusive lock on relation</DT
></DL
></DIV
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