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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:46:48 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:46:48 +0000 |
| commit | 311bcfc6b3acdd6fd152798c7f287ddf74fa2a98 (patch) | |
| tree | 0ec307299b1dada3701e42f4ca6eda57d708261e /doc/src/sgml/html/ecpg-sql-declare-statement.html | |
| parent | Initial commit. (diff) | |
| download | postgresql-15-311bcfc6b3acdd6fd152798c7f287ddf74fa2a98.tar.xz postgresql-15-311bcfc6b3acdd6fd152798c7f287ddf74fa2a98.zip | |
Adding upstream version 15.4.upstream/15.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/ecpg-sql-declare-statement.html')
| -rw-r--r-- | doc/src/sgml/html/ecpg-sql-declare-statement.html | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/doc/src/sgml/html/ecpg-sql-declare-statement.html b/doc/src/sgml/html/ecpg-sql-declare-statement.html new file mode 100644 index 0000000..be3c3bd --- /dev/null +++ b/doc/src/sgml/html/ecpg-sql-declare-statement.html @@ -0,0 +1,33 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>DECLARE STATEMENT</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="ecpg-sql-declare.html" title="DECLARE" /><link rel="next" href="ecpg-sql-describe.html" title="DESCRIBE" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">DECLARE STATEMENT</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="ecpg-sql-declare.html" title="DECLARE">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands">Up</a></td><th width="60%" align="center">36.14. Embedded SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="ecpg-sql-describe.html" title="DESCRIBE">Next</a></td></tr></table><hr /></div><div class="refentry" id="ECPG-SQL-DECLARE-STATEMENT"><div class="titlepage"></div><div class="refnamediv"><h2>DECLARE STATEMENT</h2><p>DECLARE STATEMENT — declare SQL statement identifier</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis"> +EXEC SQL [ AT <em class="replaceable"><code>connection_name</code></em> ] DECLARE <em class="replaceable"><code>statement_name</code></em> STATEMENT +</pre></div><div class="refsect1" id="id-1.7.5.20.7.3"><h2>Description</h2><p> + <code class="command">DECLARE STATEMENT</code> declares an SQL statement identifier. + SQL statement identifier can be associated with the connection. + When the identifier is used by dynamic SQL statements, the statements + are executed using the associated connection. + The namespace of the declaration is the precompile unit, and multiple + declarations to the same SQL statement identifier are not allowed. + Note that if the precompiler runs in Informix compatibility mode and + some SQL statement is declared, "database" can not be used as a cursor + name. + </p></div><div class="refsect1" id="id-1.7.5.20.7.4"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>connection_name</code></em></span></dt><dd><p> + A database connection name established by the <code class="command">CONNECT</code> command. + </p><p> + AT clause can be omitted, but such statement has no meaning. + </p></dd></dl></div><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>statement_name</code></em></span></dt><dd><p> + The name of an SQL statement identifier, either as an SQL identifier or a host variable. + </p></dd></dl></div></div><div class="refsect1" id="id-1.7.5.20.7.5"><h2>Notes</h2><p> + This association is valid only if the declaration is physically placed on top of a dynamic statement. + </p></div><div class="refsect1" id="id-1.7.5.20.7.6"><h2>Examples</h2><pre class="programlisting"> +EXEC SQL CONNECT TO postgres AS con1; +EXEC SQL AT con1 DECLARE sql_stmt STATEMENT; +EXEC SQL DECLARE cursor_name CURSOR FOR sql_stmt; +EXEC SQL PREPARE sql_stmt FROM :dyn_string; +EXEC SQL OPEN cursor_name; +EXEC SQL FETCH cursor_name INTO :column1; +EXEC SQL CLOSE cursor_name; +</pre></div><div class="refsect1" id="id-1.7.5.20.7.7"><h2>Compatibility</h2><p> + <code class="command">DECLARE STATEMENT</code> is an extension of the SQL standard, + but can be used in famous DBMSs. + </p></div><div class="refsect1" id="id-1.7.5.20.7.8"><h2>See Also</h2><span class="simplelist"><a class="xref" href="ecpg-sql-connect.html" title="CONNECT">CONNECT</a>, <a class="xref" href="ecpg-sql-declare.html" title="DECLARE">DECLARE</a>, <a class="xref" href="ecpg-sql-open.html" title="OPEN">OPEN</a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ecpg-sql-declare.html" title="DECLARE">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ecpg-sql-describe.html" title="DESCRIBE">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DECLARE </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DESCRIBE</td></tr></table></div></body></html>
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