ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzahh_5.4.0.1/sqlmeta.htm

64 lines
3.1 KiB
HTML

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en-us" xml:lang="en-us">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="security" content="public" />
<meta name="Robots" content="index,follow" />
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
<meta name="DC.Type" content="reference" />
<meta name="DC.Title" content="SQLResultSetMetaData class" />
<meta name="abstract" content="" />
<meta name="description" content="" />
<meta name="copyright" content="(C) Copyright IBM Corporation 2006" />
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2006" />
<meta name="DC.Format" content="XHTML" />
<meta name="DC.Identifier" content="sqlmeta" />
<meta name="DC.Language" content="en-us" />
<!-- All rights reserved. Licensed Materials Property of IBM -->
<!-- US Government Users Restricted Rights -->
<!-- Use, duplication or disclosure restricted by -->
<!-- GSA ADP Schedule Contract with IBM Corp. -->
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
<link rel="stylesheet" type="text/css" href="./ic.css" />
<title>SQLResultSetMetaData class</title>
</head>
<body id="sqlmeta"><a name="sqlmeta"><!-- --></a>
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
<h1 class="topictitle1">SQLResultSetMetaData class</h1>
<div><p></p>
<div class="section"><p>The <a href="javadoc/com/ibm/as400/util/servlet/SQLResultSetMetaData.html"> SQLResultSetMetaData</a> class returns information
about the columns of an <a href="sqldata.htm#sqldata">SQLResultSetRowData</a> object.
You can either provide the result set when you set the constructor's parameters
or use the <a href="javadoc/com/ibm/as400/util/servlet/SQLResultSetMetaData.html#GETMETADATA()"> get</a> and <a href="javadoc/com/ibm/as400/util/servlet/SQLResultSetMetaData.html#SETMETADATA(JAVA.SQL.RESULTSETMETADATA)"> set</a> methods to access the result set meta
data. </p>
</div>
<div class="section"><p>The following example shows you how to create an SQLResultSetMetaData
object:</p>
</div>
<div class="section"><div class="p"><pre>// Create an SQLResultSetMetaData object from the result set's metadata.
SQLResultSetRowData rowdata = new SQLResultSetRowData(resultSet);
SQLResultSetMetaData sqlMetadata = rowdata.getMetaData();
// Display the column precision for non-text columns.
String name = null;
int numberOfColumns = sqlMetadata.getColumnCount();
for (int column=0; column &lt; numberOfColumns; column++)
{
name = sqlMetadata.getColumnName(column);
if (sqlMetadata.isTextData(column))
{
System.out.println("Column: " + name + " contains text data.");
}
else
{
System.out.println("Column: " + name + " has a precision of " + sqlMetadata.getPrecision(column));
}
}</pre>
</div>
</div>
</div>
</body>
</html>