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><H1
><A
NAME="SQL-EXECUTE"
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>EXECUTE</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN75290"
></A
><H2
>Name</H2
>EXECUTE -- execute a prepared statement</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN75298"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>EXECUTE <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> [ ( <TT
CLASS="REPLACEABLE"
><I
>parameter</I
></TT
> [, ...] ) ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN75302"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>EXECUTE</TT
> is used to execute a previously prepared
statement. Since prepared statements only exist for the duration of a
session, the prepared statement must have been created by a
<TT
CLASS="COMMAND"
>PREPARE</TT
> statement executed earlier in the
current session.
</P
><P
> If the <TT
CLASS="COMMAND"
>PREPARE</TT
> statement that created the statement
specified some parameters, a compatible set of parameters must be
passed to the <TT
CLASS="COMMAND"
>EXECUTE</TT
> statement, or else an
error is raised. Note that (unlike functions) prepared statements are
not overloaded based on the type or number of their parameters; the
name of a prepared statement must be unique within a database session.
</P
><P
> For more information on the creation and usage of prepared statements,
see <A
HREF="sql-prepare.html"
>PREPARE</A
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN75312"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
> The name of the prepared statement to execute.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>parameter</I
></TT
></DT
><DD
><P
> The actual value of a parameter to the prepared statement. This
must be an expression yielding a value that is compatible with
the data type of this parameter, as was determined when the
prepared statement was created.
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN75325"
></A
><H2
>Outputs</H2
><P
> The command tag returned by <TT
CLASS="COMMAND"
>EXECUTE</TT
>
is that of the prepared statement, and not <TT
CLASS="LITERAL"
>EXECUTE</TT
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN75330"
></A
><H2
>Examples</H2
><P
> Examples are given in the <A
HREF="sql-prepare.html#SQL-PREPARE-EXAMPLES"
><I
>Examples</I
></A
> section of the <A
HREF="sql-prepare.html"
>PREPARE</A
> documentation.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN75335"
></A
><H2
>Compatibility</H2
><P
> The SQL standard includes an <TT
CLASS="COMMAND"
>EXECUTE</TT
> statement,
but it is only for use in embedded SQL. This version of the
<TT
CLASS="COMMAND"
>EXECUTE</TT
> statement also uses a somewhat different
syntax.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN75340"
></A
><H2
>See Also</H2
><A
HREF="sql-deallocate.html"
>DEALLOCATE</A
>, <A
HREF="sql-prepare.html"
>PREPARE</A
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