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>fbsql_select_db</H1
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><P
>    (PHP 4 &#62;= 4.0.6, PHP 5)</P
>fbsql_select_db&nbsp;--&nbsp;Select a FrontBase database</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN60609"
></A
><H2
>说明</H2
>bool <B
CLASS="methodname"
>fbsql_select_db</B
> ( [string database_name [, resource link_identifier]] )<BR
></BR
><P
>&#13;   Sets the current active database on the given link identifier.
  </P
><P
>&#13;   The client contacts FBExec to obtain the port number to use for
   the connection to the database. If the database name is a number
   the system will use that as a port number and it will not ask
   FBExec for the port number.  The FrontBase server can be stared
   as FRontBase -FBExec=No -port=&#60;port number&#62; &#60;database
   name&#62;.
  </P
><P
>&#13;   Every subsequent call to <A
HREF="function.fbsql-query.html"
><B
CLASS="function"
>fbsql_query()</B
></A
> will be
   made on the active database.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN60624"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>database_name</CODE
></DT
><DD
><P
>&#13;       The name of the database to be selected.
      </P
><P
>&#13;       If the database is protected with a database password, the you must
       call <A
HREF="function.fbsql-database-password.html"
><B
CLASS="function"
>fbsql_database_password()</B
></A
> before selecting the
       database.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>&#13;link_identifier</CODE
></DT
><DD
><P
>A FrontBase link identifier
returned by <A
HREF="function.fbsql-connect.html"
><B
CLASS="function"
>fbsql_connect()</B
></A
> or 
<A
HREF="function.fbsql-pconnect.html"
><B
CLASS="function"
>fbsql_pconnect()</B
></A
>.</P
><P
>If optional and not specified,
the function will try to find an open link to the FrontBase server and if no
such link is found it will try to create one as if 
<A
HREF="function.fbsql-connect.html"
><B
CLASS="function"
>fbsql_connect()</B
></A
> was called with no arguments</P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN60644"
></A
><H2
>返回值</H2
><P
>&#13;   如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
  </P
></DIV
><DIV
CLASS="refsect1"
><A
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></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
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><TR
><TD
><A
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><B
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>fbsql_connect()</B
></A
></TD
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><B
CLASS="function"
>fbsql_pconnect()</B
></A
></TD
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><A
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><B
CLASS="function"
>fbsql_database_password()</B
></A
></TD
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><B
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>fbsql_query()</B
></A
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