File: upgrade_11gr2_53_sql_pragma.html

package info (click to toggle)
db5.3 5.3.28%2Bdfsg1-0.5
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 158,360 kB
  • sloc: ansic: 448,411; java: 111,824; tcl: 80,544; sh: 44,326; cs: 33,697; cpp: 21,604; perl: 14,557; xml: 10,799; makefile: 4,077; yacc: 1,003; awk: 965; sql: 801; erlang: 342; python: 216; php: 24; asm: 14
file content (103 lines) | stat: -rw-r--r-- 4,335 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
<?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>New Berkeley DB SQL API PRAGMAs</title>
    <link rel="stylesheet" href="gettingStarted.css" type="text/css" />
    <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
    <link rel="start" href="index.html" title="Berkeley DB Installation and Build Guide" />
    <link rel="up" href="upgrade_53_toc.html" title="Chapter 9.  Upgrading Berkeley DB 11.2.5.2 applications to Berkeley DB 11.2.5.3" />
    <link rel="prev" href="upgrade_11gr2_53_sql_build.html" title="Changes in the SQL API Build" />
    <link rel="next" href="upgrade_11gr2_53_sql_rep.html" title="Replication for Existing Databases in the SQL API" />
  </head>
  <body>
    <div xmlns="" class="navheader">
      <div class="libver">
        <p>Library Version 11.2.5.3</p>
      </div>
      <table width="100%" summary="Navigation header">
        <tr>
          <th colspan="3" align="center">New Berkeley DB SQL API PRAGMAs</th>
        </tr>
        <tr>
          <td width="20%" align="left"><a accesskey="p" href="upgrade_11gr2_53_sql_build.html">Prev</a> </td>
          <th width="60%" align="center">Chapter 9. 
        Upgrading Berkeley DB 11.2.5.2 applications to Berkeley DB 11.2.5.3
    </th>
          <td width="20%" align="right"> <a accesskey="n" href="upgrade_11gr2_53_sql_rep.html">Next</a></td>
        </tr>
      </table>
      <hr />
    </div>
    <div class="sect1" lang="en" xml:lang="en">
      <div class="titlepage">
        <div>
          <div>
            <h2 class="title" style="clear: both"><a id="upgrade_11gr2_53_sql_pragma"></a>New Berkeley DB SQL API PRAGMAs</h2>
          </div>
        </div>
      </div>
      <div class="toc">
        <dl>
          <dt>
            <span class="sect2">
              <a href="upgrade_11gr2_53_sql_pragma.html#idp843792">New PRAGMAs</a>
            </span>
          </dt>
        </dl>
      </div>
      <p>
        Two new Berkeley DB SQL API specific pragmas have been added, 
	<code class="literal">bdbsql_shared_resources</code> and 
	<code class="literal">bdbsql_set_lock_tablesize</code>.  
	<code class="literal">bdbsql_shared_resources</code> is used to set the maximum 
	amount of memory, in bytes, to be used by shared structures in the main 
	environment region, which is useful in applications with a large 
	number of tables, transactions, or threads.  
	<code class="literal">bdbsql_set_lock_tablesize</code> is used to set the number 
	of buckets in the lock object hash table in the Berkeley DB 
	environment, which is useful if an application has many concurrent 
	long running transactions.
    </p>
      <div class="sect2" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h3 class="title"><a id="idp843792"></a>New PRAGMAs</h3>
            </div>
          </div>
        </div>
        <div class="itemizedlist">
          <ul type="disc">
            <li>
              <code class="literal">PRAGMA bdbsql_shared_resources[=N]</code>
            </li>
            <li>
              <code class="literal">PRAGMA bdbsql_set_lock_tablesize[=N]</code>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="navfooter">
      <hr />
      <table width="100%" summary="Navigation footer">
        <tr>
          <td width="40%" align="left"><a accesskey="p" href="upgrade_11gr2_53_sql_build.html">Prev</a> </td>
          <td width="20%" align="center">
            <a accesskey="u" href="upgrade_53_toc.html">Up</a>
          </td>
          <td width="40%" align="right"> <a accesskey="n" href="upgrade_11gr2_53_sql_rep.html">Next</a></td>
        </tr>
        <tr>
          <td width="40%" align="left" valign="top">Changes in the SQL API Build </td>
          <td width="20%" align="center">
            <a accesskey="h" href="index.html">Home</a>
          </td>
          <td width="40%" align="right" valign="top"> Replication for Existing Databases in the SQL API</td>
        </tr>
      </table>
    </div>
  </body>
</html>