123 lines
7.3 KiB
HTML
123 lines
7.3 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Version and release changes in the ODBC driver behavior" />
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<meta name="abstract" content="This topic describes version and release changes in the ODBC driver behavior." />
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<meta name="description" content="This topic describes version and release changes in the ODBC driver behavior." />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Version and release changes in the ODBC driver behavior</title>
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</head>
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<body id="versionreleasechanges"><a name="versionreleasechanges"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Version and release changes in the ODBC driver behavior</h1>
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<div><p>This topic describes version and release changes in the ODBC driver
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behavior.</p>
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<div class="section"><img src="./delta.gif" alt="Start of change" /><h4 class="sectiontitle">The following list describes some of the important
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changes for V5R4:</h4><div class="p">There are several new features available when
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using the ODBC driver to access data on a V5R4 iSeries™ server. These features include:<ul><li>Support for 128-byte column names</li>
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<li>Support for longer SQL statements (commands can be up to 2,097,152 bytes
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or 1,048,576 characters long)</li>
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<li>Support for passing an IBM<sup>®</sup> Enterprise Workload Manager (eWLM) correlator to
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the iSeries host</li>
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<li>Improved support for table and column names that are not all uppercase</li>
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<li>Enhanced distributed transaction support for loosely coupled transactions</li>
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<li>A Linux<sup>®</sup> 64-bit
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ODBC driver </li>
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</ul>
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</div>
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<img src="./deltaend.gif" alt="End of change" /></div>
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<div class="section"><h4 class="sectiontitle">The following list describes some of the important changes
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for V5R3:</h4><p>There are several new features available when using the
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ODBC driver to access data on a V5R3 iSeries server. These features include:</p>
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<ul><li>DB2<sup>®</sup> UDB
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database types of BINARY and VARBINARY</li>
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<li>UTF-8 and UTF-16 data </li>
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<li>Increased precision of decimal numbers</li>
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<li>Support for accessing stored procedure result sets with scrollable cursors</li>
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<li>Enhanced commitment control model so that autocommit can run with any
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isolation level</li>
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<li>Enhanced Microsoft<sup>®</sup> Transaction Server (MTS) / XA support
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which allows the coordination of transactions across multiple iSeries connections</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">The following list describes some of the important changes
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for V5R2:</h4><p>There are several new features available when using the
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ODBC driver to access data on a V5R2 iSeries server. These features include:</p>
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<ul><li>Ability to send Structured Query Language (SQL) statements that are 64K
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bytes long to the DB2 UDB database (the previous limit was 32K bytes)</li>
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<li>Ability to make use of the DB2 UDB database type of ROWID</li>
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<li>Ability to get back additional descriptor information, such as the base
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table name for a result set column </li>
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<li>Ability to access multiple databases on the same iSeries server</li>
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<li>Ability to retrieve meaningful information from the SQLTablePrivileges
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and SQLColumnPrivileges APIs</li>
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<li>Ability to use Kerberos support for authenticating a user to an iSeries server</li>
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<li>Ability to retrieve, regardless of the iSeries server version, more information
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in the result sets for the catalog APIs. The driver now queries the iSeries catalog
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tables directly to provide the result set for the catalog APIs.</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">The following list describes some of the important changes
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for V5R1:</h4><ul><li>Character data for parameter markers is converted from the iSeries Access(PC)
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codepage directly to the column CCSID. If a new iSeries Access codepage setting was specified
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on the Advanced Translation Options dialog of the DSN setup GUI, it will be
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the iSeries Access(PC)
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codepage. The V4R5 driver first converted character data from the iSeries Access(PC)
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codepage to the job CCSID before it was converted to the column CCSID. </li>
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<li>Character column data is converted directly from the column CCSID to the iSeries Access(PC)
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codepage. If the C type specified is SQL_C_WCHAR, then the data is converted
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to Unicode.</li>
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<li>If the value type specified in SQLBindParameter is SQL_C_WCHAR, then the
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driver converts the parameter marker data from Unicode to the column CCSID.</li>
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<li>When calling SQLBindParameter for a SQL_C_CHAR to INTEGER conversion,
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if BufferLength is 0 and the buffer contains an empty string then an error
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is returned. The V4R5 driver would accept the empty string and insert the
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value of 0 into the table.</li>
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<li>The lazy close option default is 0 (OFF), and in V4R5 its default was
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1 (ON).</li>
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<li>The prefetch option default is 0 (OFF), and in V4R5 its default was 1
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(ON).</li>
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<li>Unicode SQL statements can be sent to V5R1 or later iSeries servers.
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The package names are generated differently than in V4R5 when sending Unicode
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SQL statements.</li>
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<li>Managed DSNs (created through V4R5 or earlier iSeries Navigator) are not supported.
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They are instead treated like a User DSN, meaning that the DSN information
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is not updated from the server copy.</li>
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<li>BIGINT data type is supported to V4R5 (or later) hosts.</li>
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<li>Static cursor supported to V5R1 or later hosts. In earlier hosts, and
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in previous iSeries Access
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for Windows<sup>®</sup> ODBC
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drivers, static cursor type is mapped to dynamic.</li>
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<li>The V5R1 driver supports the ODBC 3.51 specification. In V4R5, the ODBC
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2.5 specification was supported.</li>
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<li>In V5R1, no conversion is performed when fetching data from a char field
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and retrieving it as SQL_C_BINARY. In V4R5, the driver translated data from
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EBCDIC codepages to ASCII codepages.</li>
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</ul>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaikodbcapifunctions.htm" title="Learn about implementations issues when using ODBC APIs.">Implementation issues of ODBC APIs</a></div>
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</div>
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</div>
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</body>
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</html>
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