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<h1 id="limtabs"><a href="rbafzmst02.htm#ToC_1485">Appendix A. SQL limits</a></h1><a id="idx3376" name="idx3376"></a><a id="idx3377" name="idx3377"></a><a id="idx3378" name="idx3378"></a><a id="idx3379" name="idx3379"></a>
<p>The following tables describe certain SQL and database limits imposed by
the DB2 UDB for iSeries database manager.</p>
<a name="wq1906"></a>
<div class="notetitle" id="wq1906">Note:</div>
<div class="notebody">
<ul>
<li>System storage limits may preclude the limits specified here. For example,
see <a href="rbafzmsthctabl.htm#maxrcd">Maximum row sizes</a>.</li>
<li>A limit of <var class="pv">storage</var> means that the limit is dependent on the amount
of storage available.</li>
<li>A limit of <var class="pv">statement</var> means that the limit is dependent on the
limit for the maximum length of a statement.</li></ul></div>
<a name="btable"></a>
<table id="btable" width="100%" summary="" border="1" frame="hsides" rules="rows">
<caption>Table 76. Identifier Length Limits</caption>
<thead valign="bottom">
<tr>
<th id="wq1907" width="64%" align="left" valign="bottom">Identifier Limits</th>
<th id="wq1908" width="35%" align="left" valign="bottom">DB2 UDB for iSeries Limit</th>
</tr>
</thead>
<tbody valign="top">
<tr>
<td align="left" valign="top" headers="wq1907">Longest authorization name</td>
<td align="left" valign="top" headers="wq1908">10<sup class="fn"><a href="rbafzmstlimtabs.htm#authidln2">83</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest correlation name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest cursor name</td>
<td align="left" valign="top" headers="wq1908">18</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest descriptor name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest external program name (string form)</td>
<td align="left" valign="top" headers="wq1908">279<sup class="fn"><a href="rbafzmstlimtabs.htm#rexxl">84</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest external program name (unqualified
form)</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest host identifier<sup class="fn"><a href="rbafzmstlimtabs.htm#chid">85</a></sup></td>
<td align="left" valign="top" headers="wq1908">64</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest package version-id</td>
<td align="left" valign="top" headers="wq1908">64</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest partition name</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest savepoint name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest schema name</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest server name</td>
<td align="left" valign="top" headers="wq1908">18</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest statement name</td>
<td align="left" valign="top" headers="wq1908">18</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest SQL condition name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest SQL label</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified alias name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified column name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified constraint name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified distinct type name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified function name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified index name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified nodegroup name</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified package name</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified procedure name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified sequence name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified specific name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified SQL parameter name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified SQL variable name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified system column name</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified system table, view, and
index name</td>
<td align="left" valign="top" headers="wq1908">10</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified table and view name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1907">Longest unqualified trigger name</td>
<td align="left" valign="top" headers="wq1908">128</td>
</tr>
</tbody>
</table>
<p>&nbsp;</p><a id="idx3380" name="idx3380"></a><a id="idx3381" name="idx3381"></a>
<a name="btable1"></a>
<table id="btable1" width="100%" summary="" border="1" frame="hsides" rules="rows">
<caption>Table 77. Numeric Limits</caption>
<thead valign="bottom">
<tr>
<th id="wq1909" width="65%" align="left" valign="bottom">Numeric Limits</th>
<th id="wq1910" width="34%" align="left" valign="bottom">DB2 UDB for iSeries Limit</th>
</tr>
</thead>
<tbody valign="top">
<tr>
<td align="left" valign="top" headers="wq1909">Smallest SMALLINT value</td>
<td align="left" valign="top" headers="wq1910">-32 768</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest SMALLINT value</td>
<td align="left" valign="top" headers="wq1910">+32 767</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Smallest INTEGER value</td>
<td align="left" valign="top" headers="wq1910">-2 147 483 648</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest INTEGER value</td>
<td align="left" valign="top" headers="wq1910">+2 147 483 647</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Smallest BIGINT value</td>
<td align="left" valign="top" headers="wq1910">-9 223 372 036 854 775 808</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest BIGINT value</td>
<td align="left" valign="top" headers="wq1910">+9 223 372 036 854 775 807</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest decimal precision</td>
<td align="left" valign="top" headers="wq1910">63</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Smallest DOUBLE value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> -1.79x10<sup>308</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest DOUBLE value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> +1.79x10<sup>308</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Smallest positive DOUBLE value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> +2.23x10<sup>-308</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest negative DOUBLE value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910">-2.23x10<sup>-308</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Smallest REAL value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> -3.4x10<sup>38</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest REAL value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> +3.4x10<sup>38</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Smallest positive REAL value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> +1.18x10<sup>-38</sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1909">Largest negative REAL value<sup class="fn"><a href="rbafzmstlimtabs.htm#vapprox">86</a></sup></td>
<td align="left" valign="top" headers="wq1910"> -1.18x10<sup>-38</sup></td>
</tr>
</tbody>
</table>
<p>&nbsp;</p><a id="idx3382" name="idx3382"></a><a id="idx3383" name="idx3383"></a>
<a name="btable2"></a>
<table id="btable2" width="100%" summary="" border="1" frame="hsides" rules="rows">
<caption>Table 78. String Limits</caption>
<thead valign="bottom">
<tr>
<th id="wq1911" width="65%" align="left" valign="bottom">String Limits</th>
<th id="wq1912" width="34%" align="left" valign="bottom">DB2 UDB for iSeries Limit</th>
</tr>
</thead>
<tbody valign="top">
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of CHAR (in bytes)</td>
<td align="left" valign="top" headers="wq1912">32765<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of VARCHAR (in bytes)</td>
<td align="left" valign="top" headers="wq1912">32739<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of CLOB (in bytes)</td>
<td align="left" valign="top" headers="wq1912">2 147 483 647</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of GRAPHIC (in double-byte
characters)</td>
<td align="left" valign="top" headers="wq1912">16382<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of VARGRAPHIC (in double-byte
characters)</td>
<td align="left" valign="top" headers="wq1912">16369<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of DBCLOB (in double-byte
characters)</td>
<td align="left" valign="top" headers="wq1912">1 073 741 823</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of BINARY (in bytes)</td>
<td align="left" valign="top" headers="wq1912">32765<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of VARBINARY (in bytes)</td>
<td align="left" valign="top" headers="wq1912">32739<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of BLOB (in bytes)</td>
<td align="left" valign="top" headers="wq1912">2 147 483 647</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of character constant</td>
<td align="left" valign="top" headers="wq1912">32740</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of a graphic constant</td>
<td align="left" valign="top" headers="wq1912">16370</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of binary constant</td>
<td align="left" valign="top" headers="wq1912">32740</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of concatenated character
string</td>
<td align="left" valign="top" headers="wq1912">2 147 483 647</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of concatenated graphic string</td>
<td align="left" valign="top" headers="wq1912">1 073 741 823</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of concatenated binary string</td>
<td align="left" valign="top" headers="wq1912">2 147 483 647</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum number of hexadecimal constant digits</td>
<td align="left" valign="top" headers="wq1912">32 762</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of catalog comments</td>
<td align="left" valign="top" headers="wq1912">2000<sup class="fn"><a href="rbafzmstlimtabs.htm#seqless">88</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of column label</td>
<td align="left" valign="top" headers="wq1912">60</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Longest SQL routine label</td>
<td align="left" valign="top" headers="wq1912">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Longest table, package, or alias label</td>
<td align="left" valign="top" headers="wq1912">50</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of C NUL-terminated</td>
<td align="left" valign="top" headers="wq1912">32739<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1911">Maximum length of C NUL-terminated graphic</td>
<td align="left" valign="top" headers="wq1912">16369<sup class="fn"><a href="rbafzmstlimtabs.htm#onemorenull">87</a></sup></td>
</tr>
</tbody>
</table>
<p>&nbsp;</p><a id="idx3384" name="idx3384"></a><a id="idx3385" name="idx3385"></a>
<a name="btable3"></a>
<table id="btable3" width="100%" summary="" border="1" frame="hsides" rules="rows">
<caption>Table 79. Datetime Limits</caption>
<thead valign="bottom">
<tr>
<th id="wq1913" width="65%" align="left" valign="bottom">Datetime Limits</th>
<th id="wq1914" width="34%" align="left" valign="bottom">DB2 UDB for iSeries Limit</th>
</tr>
</thead>
<tbody valign="top">
<tr>
<td align="left" valign="top" headers="wq1913">Smallest DATE value</td>
<td align="left" valign="top" headers="wq1914">0001-01-01</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1913">Largest DATE value</td>
<td align="left" valign="top" headers="wq1914">9999-12-31</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1913">Smallest TIME value</td>
<td align="left" valign="top" headers="wq1914">00:00:00</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1913">Largest TIME value</td>
<td align="left" valign="top" headers="wq1914">24:00:00</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1913">Smallest TIMESTAMP value</td>
<td align="left" valign="top" headers="wq1914">0001-01-01-00.00.00.000000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1913">Largest TIMESTAMP value</td>
<td align="left" valign="top" headers="wq1914">9999-12-31-24.00.00.000000</td>
</tr>
</tbody>
</table><a id="idx3386" name="idx3386"></a><a id="idx3387" name="idx3387"></a>
<a name="btable3b"></a>
<table id="btable3b" width="100%" summary="" border="1" frame="hsides" rules="rows">
<caption>Table 80. DataLink Limits</caption>
<thead valign="bottom">
<tr>
<th id="wq1915" width="65%" align="left" valign="bottom">Datalink Limits</th>
<th id="wq1916" width="34%" align="left" valign="bottom">DB2 UDB for iSeries Limit</th>
</tr>
</thead>
<tbody valign="top">
<tr>
<td align="left" valign="top" headers="wq1915">Maximum length of DATALINK</td>
<td align="left" valign="top" headers="wq1916">32718</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1915">Maximum length of DATALINK comment</td>
<td align="left" valign="top" headers="wq1916">254</td>
</tr>
</tbody>
</table><a id="idx3388" name="idx3388"></a><a id="idx3389" name="idx3389"></a>
<a name="dbmlimi"></a>
<table id="dbmlimi" width="100%" summary="" border="1" frame="hsides" rules="rows">
<caption>Table 81. Database Manager Limits</caption>
<thead valign="bottom">
<tr>
<th id="wq1917" width="64%" align="left" valign="bottom">Database Manager Limits</th>
<th id="wq1918" width="35%" align="left" valign="bottom">DB2 UDB for iSeries Limit</th>
</tr>
</thead>
<tbody valign="top">
<tr>
<td align="left" valign="top" headers="wq1917">Most columns in a table</td>
<td align="left" valign="top" headers="wq1918">8000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most columns in a view</td>
<td align="left" valign="top" headers="wq1918">8000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum length of a row without LOBs including
all overhead</td>
<td align="left" valign="top" headers="wq1918">32766</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum length of a row with LOBs including
all overhead</td>
<td align="left" valign="top" headers="wq1918">3 758 096 383</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of parameters in a function</td>
<td align="left" valign="top" headers="wq1918">90</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of parameters in a procedure</td>
<td align="left" valign="top" headers="wq1918">1024<sup class="fn"><a href="rbafzmstlimtabs.htm#olyparam">89</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum size of a non-partitioned table</td>
<td align="left" valign="top" headers="wq1918">1.7 terabytes</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum size of an index</td>
<td align="left" valign="top" headers="wq1918">1 terabyte</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most rows in a non-partitioned table</td>
<td align="left" valign="top" headers="wq1918">4 294 967 288</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Longest index key</td>
<td align="left" valign="top" headers="wq1918">32768</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most columns in an index key</td>
<td align="left" valign="top" headers="wq1918">120</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most indexes on a table</td>
<td align="left" valign="top" headers="wq1918">approximately 4000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most tables referenced in an SQL statement</td>
<td align="left" valign="top" headers="wq1918">1000<sup class="fn"><a href="rbafzmstlimtabs.htm#mbrs256">90</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most tables referenced in a view</td>
<td align="left" valign="top" headers="wq1918">256<sup class="fn"><a href="rbafzmstlimtabs.htm#mbrs256">90</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most host variable declarations in a precompiled
program</td>
<td align="left" valign="top" headers="wq1918">storage<sup class="fn"><a href="rbafzmstlimtabs.htm#olylim">91</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most host variables and constants in an SQL
statement</td>
<td align="left" valign="top" headers="wq1918">4096<sup class="fn"><a href="rbafzmstlimtabs.htm#olypar2">92</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Longest host variable used for insert or
update (in bytes)</td>
<td align="left" valign="top" headers="wq1918">2 147 483 647</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Longest SQL statement (in bytes)</td>
<td align="left" valign="top" headers="wq1918">2 097 152</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Longest CHECK constraint (in bytes)</td>
<td align="left" valign="top" headers="wq1918">statement</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most elements in a select list<sup class="fn"><a href="rbafzmstlimtabs.htm#olypar">93</a></sup></td>
<td align="left" valign="top" headers="wq1918">approximately 8000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most predicates in a WHERE or HAVING clause</td>
<td align="left" valign="top" headers="wq1918">statement</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of columns in a GROUP BY clause</td>
<td align="left" valign="top" headers="wq1918">120</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum total length of columns in a GROUP
BY clause</td>
<td align="left" valign="top" headers="wq1918">32766</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of columns in an ORDER BY
clause</td>
<td align="left" valign="top" headers="wq1918">32766</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum total length of columns in an ORDER
BY clause</td>
<td align="left" valign="top" headers="wq1918">32766</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum size of an SQLDA</td>
<td align="left" valign="top" headers="wq1918">16 777 215</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of prepared statements</td>
<td align="left" valign="top" headers="wq1918">storage</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most declared cursors in a program</td>
<td align="left" valign="top" headers="wq1918">storage</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of cursors opened at one time</td>
<td align="left" valign="top" headers="wq1918">storage <sup class="fn"><a href="rbafzmstlimtabs.htm#openinjob">94</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Most tables in a relational database</td>
<td align="left" valign="top" headers="wq1918">storage</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of triggers on a table</td>
<td align="left" valign="top" headers="wq1918">300</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of nested trigger invocations</td>
<td align="left" valign="top" headers="wq1918">200</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum length of a password</td>
<td align="left" valign="top" headers="wq1918">128</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of constraints on a table</td>
<td align="left" valign="top" headers="wq1918">300</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum length of a path</td>
<td align="left" valign="top" headers="wq1918">3483<sup class="fn"><a href="rbafzmstlimtabs.htm#pathdrda">95</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of schemas in a path</td>
<td align="left" valign="top" headers="wq1918">268</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum length of a hint</td>
<td align="left" valign="top" headers="wq1918">32</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of objects in a schema</td>
<td align="left" valign="top" headers="wq1918">approximately 360 000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum levels allowed for a subselect</td>
<td align="left" valign="top" headers="wq1918">256</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of rows changed in a unit
of work</td>
<td align="left" valign="top" headers="wq1918">500 000 000</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of locators in a transaction</td>
<td align="left" valign="top" headers="wq1918">16 000 000 <sup class="fn"><a href="rbafzmstlimtabs.htm#sqlsvrloc">96</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of savepoints active at one
time</td>
<td headers="wq1918">storage</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of simultaneously allocated
CLI handles in a process</td>
<td align="left" valign="top" headers="wq1918">160 000 <sup class="fn"><a href="rbafzmstlimtabs.htm#drdahandle">97</a></sup></td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of nodes in a nodegroup</td>
<td align="left" valign="top" headers="wq1918">32</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum number of partitions in a partitioned
table</td>
<td align="left" valign="top" headers="wq1918">256</td>
</tr>
<tr>
<td align="left" valign="top" headers="wq1917">Maximum size of a package</td>
<td align="left" valign="top" headers="wq1918">500 megabytes</td>
</tr>
</tbody>
</table>
<p>&nbsp;&nbsp;</p>
<p>&nbsp;</p>
<hr /><div class="fnnum"><a id="authidln2" name="authidln2">83</a>.</div>
<div class="fntext">As an application requester, DB2 UDB for iSeries can send an
authorization name of up to 255 bytes.</div><div class="fnnum"><a id="rexxl" name="rexxl">84</a>.</div>
<div class="fntext">For REXX procedures,
the limit is 33.</div><div class="fnnum"><a id="chid" name="chid">85</a>.</div>
<div class="fntext">For a C program, the limit is 128.</div><div class="fnnum"><a id="vapprox" name="vapprox">86</a>.</div>
<div class="fntext">The values shown are approximate.</div><div class="fnnum"><a id="onemorenull" name="onemorenull">87</a>.</div>
<div class="fntext">If the column is NOT NULL, the maximum is one
more.</div><div class="fnnum"><a id="seqless" name="seqless">88</a>.</div>
<div class="fntext">For sequences the limit is 500.</div><div class="fnnum"><a id="olyparam" name="olyparam">89</a>.</div>
<div class="fntext">SQL procedures are limited to 1024 parameters.
The number of parameters for external procedures depends on the PARAMETER
STYLE:
<ul>
<li>PARAMETER STYLE GENERAL has a maximum of 1024.</li>
<li>PARAMETER STYLE GENERAL WITH NULLS has a maximum of 1023.</li>
<li>PARAMETER STYLE SQL or PARAMETER STYLE DB2SQL has a maximum of 508.</li>
<li>PARAMETER STYLE JAVA or PARAMETER STYLE DB2GENERAL has a maximum of 90.</li></ul>The maximum number of parameters for external procedures is also limited
by the maximum number of parameters allowed by the licensed program used to
compile the external program.</div><div class="fnnum"><a id="mbrs256" name="mbrs256">90</a>.</div>
<div class="fntext">The maximum number of members
(and partitions) referenced is also 256.</div><div class="fnnum"><a id="olylim" name="olylim">91</a>.</div>
<div class="fntext">In RPG/400&reg; and PL/I
programs when the old parameter passing technique is used, the limit is approximately
4000. The limit is based on the number of pointers allowed in the program.
In all other cases, the limit is based on operating system constraints.</div><div class="fnnum"><a id="olypar2" name="olypar2">92</a>.</div>
<div class="fntext">If the statement is not read-only, the limit is 2048. The limit
is approximate and may be less if very large string constants or string variables
are used.</div><div class="fnnum"><a id="olypar" name="olypar">93</a>.</div>
<div class="fntext">The limit is based on the size of internal structures
generated for the parsed SQL statement.</div><div class="fnnum"><a id="openinjob" name="openinjob">94</a>.</div>
<div class="fntext">The maximum number of cursors open at one time in a single job is approximately
21 754.</div><div class="fnnum"><a id="pathdrda" name="pathdrda">95</a>.</div>
<div class="fntext">The maximum length of a path in DRDA&reg; is 255.</div><div class="fnnum"><a id="sqlsvrloc" name="sqlsvrloc">96</a>.</div>
<div class="fntext">The maximum number of locators in a transaction in SQL Server
mode is 209 000.</div><div class="fnnum"><a id="drdahandle" name="drdahandle">97</a>.</div>
<div class="fntext">The maximum number of allocated handles
per DRDA connection is 500.</div>
<br />
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