Sophie: lib64dbi-devel-0.9.0-4.mga5 x86

lib64dbi-devel-0.9.0-4.mga5.x86_64.rpm

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>Database Independent Abstraction Layer for C: libdbi Driver Author's Guide</TH
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><H1
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><A
NAME="DRIVERFUNCS-DBQUERY"
>3.2. Internal Database Query Functions</A
></H1
><P
>These functions are called by libdbi when the libdbi user runs queries and accesses their results. There are also a bunch of helper functions that deal with the character encodings as well as with string escaping and quoting.</P
><DIV
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><H2
CLASS="SECTION"
><A
NAME="DBD-GOTO-ROW"
>3.2.1. dbd_goto_row</A
></H2
><DIV
CLASS="FUNCSYNOPSIS"
><P
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><A
NAME="AEN279"
></A
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>dbd_goto_row</B
></CODE
>(dbi_result_t *<VAR
CLASS="PDPARAM"
>result</VAR
>, unsigned long long <VAR
CLASS="PDPARAM"
>rowidx</VAR
>, unsigned long long <VAR
CLASS="PDPARAM"
>currowidx</VAR
>);</CODE
></P
><P
></P
></DIV
><P
>Jumps to the specifed row in the result set. Internal row counts start at 0. The current row number is passed to the driver to allow it to check whether a (presumably expensive) seek operation is required.</P
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>Arguments</DT
><DD
><P
><TT
CLASS="LITERAL"
>result</TT
>: The target result handle.</P
><P
><TT
CLASS="LITERAL"
>row</TT
>: The target row number.</P
><P
><TT
CLASS="LITERAL"
>row</TT
>: The current row number.</P
></DD
><DT
>Returns</DT
><DD
><P
>1 on success, 0 on error.</P
></DD
></DL
></DIV
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><DIV
CLASS="SECTION"
><H2
CLASS="SECTION"
><A
NAME="DBD-FETCH-ROW"
>3.2.2. dbd_fetch_row</A
></H2
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><P
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><A
NAME="AEN306"
></A
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>dbd_fetch_row</B
></CODE
>(dbi_result_t *<VAR
CLASS="PDPARAM"
>result</VAR
>, unsigned long long <VAR
CLASS="PDPARAM"
>rowidx</VAR
>);</CODE
></P
><P
></P
></DIV
><P
>Fetches the target row, retrieving one-time field information if necessary. Also see the <A
HREF="helperfuncs.html#INTERNAL-DBD-ROW-ALLOCATE"
>_dbd_row_allocate</A
> and <A
HREF="helperfuncs.html#INTERNAL-DBD-ROW-FINALIZE"
>_dbd_row_finalize</A
> helper functions.</P
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>Arguments</DT
><DD
><P
><TT
CLASS="LITERAL"
>result</TT
>: The target result object.</P
><P
><TT
CLASS="LITERAL"
>rowidx</TT
>: The number of the row to fetch. Internal row numbers start at zero.</P
></DD
><DT
>Returns</DT
><DD
><P
>0 on error, 1 on successful fetch.</P
></DD
></DL
></DIV
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><H2
CLASS="SECTION"
><A
NAME="DBD-FREE-QUERY"
>3.2.3. dbd_free_query</A
></H2
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CLASS="FUNCSYNOPSIS"
><P
></P
><A
NAME="AEN331"
></A
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>dbd_free_query</B
></CODE
>(dbi_result_t *<VAR
CLASS="PDPARAM"
>result</VAR
>);</CODE
></P
><P
></P
></DIV
><P
>Frees the target result handle.</P
><P
></P
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><DL
><DT
>Arguments</DT
><DD
><P
><TT
CLASS="LITERAL"
>result</TT
>: The target result handle.</P
></DD
><DT
>Returns</DT
><DD
><P
>0 on success.</P
></DD
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