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<!DOCTYPE HTML>
<html lang="en-US" manifest="../manifest.appcache">
<head>
<meta charset="UTF-8">
<title>vdbemem.c分析 | SQlite源码分析</title>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<meta name="description" content="">
<meta name="generator" content="GitBook 0.7.0">
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<link rel="next" href="../vdbemem/vdbememsqlitevdbe.html" />
<link rel="prev" href="../mainc/READMEG16.html" />
</head>
<body>
<link rel="stylesheet" href="../gitbook/style.css">
<div class="book" data-level="7.3.4.1" data-basepath=".." data-revision="1426425870398">
<div class="book-header">
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<a href="#" class="btn pull-left toggle-summary" aria-label="Toggle summary"><i class="fa fa-align-justify"></i></a>
<a href="https://github.com/null" target="_blank" class="btn pull-left home-bookmark" aria-label="GitHub home"><i class="fa fa-bookmark-o"></i></a>
<a href="#" class="btn pull-left toggle-search" aria-label="Toggle search"><i class="fa fa-search"></i></a>
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</a>
<div class="dropdown-menu font-settings">
<div class="dropdown-caret">
<span class="caret-outer"></span>
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</div>
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<button id="reduce-font-size" class="btn btn-default">A</button>
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<!-- Title -->
<h1>
<i class="fa fa-spinner fa-spin"></i>
<a href="../" >SQlite源码分析</a>
</h1>
</div>
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<input type="text" placeholder="Search" class="form-control" />
</div>
<ul class="summary">
<li class="chapter " data-level="0" data-path="index.html">
<a href="../index.html">
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首页
</a>
</li>
<li class="chapter " data-level="1" data-path="sqlite/sqliteintro.html">
<a href="../sqlite/sqliteintro.html">
<i class="fa fa-check"></i>
<b>1.</b>
SQLite简介
</a>
<ul class="articles">
<li class="chapter " data-level="1.1" data-path="vdbemem/vdbememsqliteintro.html">
<a href="../vdbemem/vdbememsqliteintro.html">
<i class="fa fa-check"></i>
<b>1.1.</b>
SQLite特性
</a>
</li>
<li class="chapter " data-level="1.2" data-path="sqlite/introduce.html">
<a href="../sqlite/introduce.html">
<i class="fa fa-check"></i>
<b>1.2.</b>
推荐使用场景
</a>
</li>
<li class="chapter " data-level="1.3" data-path="sqlite/READMEG14.html">
<a href="../sqlite/READMEG14.html">
<i class="fa fa-check"></i>
<b>1.3.</b>
快速使用SQLite
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="2" data-path="sqlite/architecture.html">
<a href="../sqlite/architecture.html">
<i class="fa fa-check"></i>
<b>2.</b>
SQLite体系结构
</a>
<ul class="articles">
<li class="chapter " data-level="2.1" data-path="sqlite/system.html">
<a href="../sqlite/system.html">
<i class="fa fa-check"></i>
<b>2.1.</b>
体系结构
</a>
</li>
<li class="chapter " data-level="2.2" data-path="sqlite/sqlitemodule.html">
<a href="../sqlite/sqlitemodule.html">
<i class="fa fa-check"></i>
<b>2.2.</b>
各结构作用
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3" data-path="vdbemem/summary.html">
<a href="../vdbemem/summary.html">
<i class="fa fa-check"></i>
<b>3.</b>
进程模型
</a>
<ul class="articles">
<li class="chapter " data-level="3.1" data-path="vdbeInt&vdbemem887/whatIsVdbe.html">
<a href="../vdbeInt&vdbemem887/whatIsVdbe.html">
<i class="fa fa-check"></i>
<b>3.1.</b>
什么是VDBE
</a>
<ul class="articles">
<li class="chapter " data-level="3.1.1" data-path="vdbeInt&vdbemem887/sqlite&vdbe.html">
<a href="../vdbeInt&vdbemem887/sqlite&vdbe.html">
<i class="fa fa-check"></i>
<b>3.1.1.</b>
sqLite为什么要使用虚拟机
</a>
</li>
<li class="chapter " data-level="3.1.2" data-path="vdbeInt&vdbemem887/vdbeProcess.html">
<a href="../vdbeInt&vdbemem887/vdbeProcess.html">
<i class="fa fa-check"></i>
<b>3.1.2.</b>
VDBE的运行
</a>
</li>
<li class="chapter " data-level="3.1.3" data-path="vdbeInt&vdbemem887/vdbeInt.html">
<a href="../vdbeInt&vdbemem887/vdbeInt.html">
<i class="fa fa-check"></i>
<b>3.1.3.</b>
vdbeInt.h简介
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.2" data-path="vdbe/README.html">
<a href="../vdbe/README.html">
<i class="fa fa-check"></i>
<b>3.2.</b>
VDBE执行方法
</a>
</li>
<li class="chapter " data-level="3.3" data-path="execuing_of_vdbec/README.html">
<a href="../execuing_of_vdbec/README.html">
<i class="fa fa-check"></i>
<b>3.3.</b>
SQLite执行与VDBE
</a>
<ul class="articles">
<li class="chapter " data-level="3.3.1" data-path="execuing_of_vdbec/op_init.html">
<a href="../execuing_of_vdbec/op_init.html">
<i class="fa fa-check"></i>
<b>3.3.1.</b>
OP_Init
</a>
</li>
<li class="chapter " data-level="3.3.2" data-path="execuing_of_vdbec/op_transaction.html">
<a href="../execuing_of_vdbec/op_transaction.html">
<i class="fa fa-check"></i>
<b>3.3.2.</b>
OP_Transaction
</a>
</li>
<li class="chapter " data-level="3.3.3" data-path="execuing_of_vdbec/op_tablelock.html">
<a href="../execuing_of_vdbec/op_tablelock.html">
<i class="fa fa-check"></i>
<b>3.3.3.</b>
OP_TableLock
</a>
</li>
<li class="chapter " data-level="3.3.4" data-path="execuing_of_vdbec/op_goto.html">
<a href="../execuing_of_vdbec/op_goto.html">
<i class="fa fa-check"></i>
<b>3.3.4.</b>
OP_Goto
</a>
</li>
<li class="chapter " data-level="3.3.5" data-path="execuing_of_vdbec/op_readcookie.html">
<a href="../execuing_of_vdbec/op_readcookie.html">
<i class="fa fa-check"></i>
<b>3.3.5.</b>
OP_ReadCookie
</a>
</li>
<li class="chapter " data-level="3.3.6" data-path="execuing_of_vdbec/op_if.html">
<a href="../execuing_of_vdbec/op_if.html">
<i class="fa fa-check"></i>
<b>3.3.6.</b>
OP_If
</a>
</li>
<li class="chapter " data-level="3.3.7" data-path="execuing_of_vdbec/op_integer1.html">
<a href="../execuing_of_vdbec/op_integer1.html">
<i class="fa fa-check"></i>
<b>3.3.7.</b>
OP_Integer1
</a>
</li>
<li class="chapter " data-level="3.3.8" data-path="execuing_of_vdbec/op_setcookie.html">
<a href="../execuing_of_vdbec/op_setcookie.html">
<i class="fa fa-check"></i>
<b>3.3.8.</b>
OP_SetCookie
</a>
</li>
<li class="chapter " data-level="3.3.9" data-path="execuing_of_vdbec/op_integer2.html">
<a href="../execuing_of_vdbec/op_integer2.html">
<i class="fa fa-check"></i>
<b>3.3.9.</b>
OP_Integer2
</a>
</li>
<li class="chapter " data-level="3.3.10" data-path="execuing_of_vdbec/op_setcookie.html">
<a href="../execuing_of_vdbec/op_setcookie.html">
<i class="fa fa-check"></i>
<b>3.3.10.</b>
OP_SetCookie
</a>
</li>
<li class="chapter " data-level="3.3.11" data-path="execuing_of_vdbec/op_createtable.html">
<a href="../execuing_of_vdbec/op_createtable.html">
<i class="fa fa-check"></i>
<b>3.3.11.</b>
OP_CreateTable
</a>
</li>
<li class="chapter " data-level="3.3.12" data-path="execuing_of_vdbec/op_openwrite.html">
<a href="../execuing_of_vdbec/op_openwrite.html">
<i class="fa fa-check"></i>
<b>3.3.12.</b>
OP_OpenWrite
</a>
</li>
<li class="chapter " data-level="3.3.13" data-path="execuing_of_vdbec/op_newrowid.html">
<a href="../execuing_of_vdbec/op_newrowid.html">
<i class="fa fa-check"></i>
<b>3.3.13.</b>
OP_NewRowid
</a>
</li>
<li class="chapter " data-level="3.3.14" data-path="execuing_of_vdbec/op_null1.html">
<a href="../execuing_of_vdbec/op_null1.html">
<i class="fa fa-check"></i>
<b>3.3.14.</b>
OP_Null1
</a>
</li>
<li class="chapter " data-level="3.3.15" data-path="execuing_of_vdbec/op_insert.html">
<a href="../execuing_of_vdbec/op_insert.html">
<i class="fa fa-check"></i>
<b>3.3.15.</b>
OP_Insert
</a>
</li>
<li class="chapter " data-level="3.3.16" data-path="execuing_of_vdbec/op_close1.html">
<a href="../execuing_of_vdbec/op_close1.html">
<i class="fa fa-check"></i>
<b>3.3.16.</b>
OP_Close1
</a>
</li>
<li class="chapter " data-level="3.3.17" data-path="execuing_of_vdbec/op_close2.html">
<a href="../execuing_of_vdbec/op_close2.html">
<i class="fa fa-check"></i>
<b>3.3.17.</b>
OP_Close2
</a>
</li>
<li class="chapter " data-level="3.3.18" data-path="execuing_of_vdbec/op_null2.html">
<a href="../execuing_of_vdbec/op_null2.html">
<i class="fa fa-check"></i>
<b>3.3.18.</b>
OP_Null2
</a>
</li>
<li class="chapter " data-level="3.3.19" data-path="execuing_of_vdbec/op_openwrite1.html">
<a href="../execuing_of_vdbec/op_openwrite1.html">
<i class="fa fa-check"></i>
<b>3.3.19.</b>
OP_OpenWrite1
</a>
</li>
<li class="chapter " data-level="3.3.20" data-path="execuing_of_vdbec/op_mustbeint.html">
<a href="../execuing_of_vdbec/op_mustbeint.html">
<i class="fa fa-check"></i>
<b>3.3.20.</b>
OP_MustBeInt
</a>
</li>
<li class="chapter " data-level="3.3.21" data-path="execuing_of_vdbec/op_notexists.html">
<a href="../execuing_of_vdbec/op_notexists.html">
<i class="fa fa-check"></i>
<b>3.3.21.</b>
OP_NotExists
</a>
</li>
<li class="chapter " data-level="3.3.22" data-path="execuing_of_vdbec/op_rowid.html">
<a href="../execuing_of_vdbec/op_rowid.html">
<i class="fa fa-check"></i>
<b>3.3.22.</b>
OP_Rowid
</a>
</li>
<li class="chapter " data-level="3.3.23" data-path="execuing_of_vdbec/op_isnull.html">
<a href="../execuing_of_vdbec/op_isnull.html">
<i class="fa fa-check"></i>
<b>3.3.23.</b>
OP_IsNull
</a>
</li>
<li class="chapter " data-level="3.3.24" data-path="execuing_of_vdbec/op_string.html">
<a href="../execuing_of_vdbec/op_string.html">
<i class="fa fa-check"></i>
<b>3.3.24.</b>
OP_String
</a>
</li>
<li class="chapter " data-level="3.3.25" data-path="execuing_of_vdbec/op_string1.html">
<a href="../execuing_of_vdbec/op_string1.html">
<i class="fa fa-check"></i>
<b>3.3.25.</b>
OP_String1
</a>
</li>
<li class="chapter " data-level="3.3.26" data-path="execuing_of_vdbec/op_string2.html">
<a href="../execuing_of_vdbec/op_string2.html">
<i class="fa fa-check"></i>
<b>3.3.26.</b>
OP_String2
</a>
</li>
<li class="chapter " data-level="3.3.27" data-path="execuing_of_vdbec/op_copy.html">
<a href="../execuing_of_vdbec/op_copy.html">
<i class="fa fa-check"></i>
<b>3.3.27.</b>
OP_Copy
</a>
</li>
<li class="chapter " data-level="3.3.28" data-path="execuing_of_vdbec/op_string3.html">
<a href="../execuing_of_vdbec/op_string3.html">
<i class="fa fa-check"></i>
<b>3.3.28.</b>
OP_String3
</a>
</li>
<li class="chapter " data-level="3.3.29" data-path="execuing_of_vdbec/op_makerecord.html">
<a href="../execuing_of_vdbec/op_makerecord.html">
<i class="fa fa-check"></i>
<b>3.3.29.</b>
OP_MakeRecord
</a>
</li>
<li class="chapter " data-level="3.3.30" data-path="execuing_of_vdbec/op_insert1.html">
<a href="../execuing_of_vdbec/op_insert1.html">
<i class="fa fa-check"></i>
<b>3.3.30.</b>
OP_Insert1
</a>
</li>
<li class="chapter " data-level="3.3.31" data-path="execuing_of_vdbec/op_close3.html">
<a href="../execuing_of_vdbec/op_close3.html">
<i class="fa fa-check"></i>
<b>3.3.31.</b>
OP_Close3
</a>
</li>
<li class="chapter " data-level="3.3.32" data-path="execuing_of_vdbec/op_integer3.html">
<a href="../execuing_of_vdbec/op_integer3.html">
<i class="fa fa-check"></i>
<b>3.3.32.</b>
OP_Integer3
</a>
</li>
<li class="chapter " data-level="3.3.33" data-path="execuing_of_vdbec/op_setcookie1.html">
<a href="../execuing_of_vdbec/op_setcookie1.html">
<i class="fa fa-check"></i>
<b>3.3.33.</b>
OP_SetCookie1
</a>
</li>
<li class="chapter " data-level="3.3.34" data-path="execuing_of_vdbec/op_parseschema.html">
<a href="../execuing_of_vdbec/op_parseschema.html">
<i class="fa fa-check"></i>
<b>3.3.34.</b>
OP_ParseSchema
</a>
</li>
<li class="chapter " data-level="3.3.35" data-path="execuing_of_vdbec/op_halt.html">
<a href="../execuing_of_vdbec/op_halt.html">
<i class="fa fa-check"></i>
<b>3.3.35.</b>
OP_Halt
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.4" data-path="execuing_procedure_of_vdbe/README.html">
<a href="../execuing_procedure_of_vdbe/README.html">
<i class="fa fa-check"></i>
<b>3.4.</b>
SQLite执行过程
</a>
</li>
<li class="chapter " data-level="3.5" data-path="vdbeauxc/preview.html">
<a href="../vdbeauxc/preview.html">
<i class="fa fa-check"></i>
<b>3.5.</b>
vdbeaux.c源码概览
</a>
</li>
<li class="chapter " data-level="3.6" data-path="vdbeauxc/intrduceandanaly.html">
<a href="../vdbeauxc/intrduceandanaly.html">
<i class="fa fa-check"></i>
<b>3.6.</b>
vdbeaux.c 源码介绍与分析
</a>
<ul class="articles">
<li class="chapter " data-level="3.6.1" data-path="vdbeauxc/createfame.html">
<a href="../vdbeauxc/createfame.html">
<i class="fa fa-check"></i>
<b>3.6.1.</b>
创建vdbe结构体
</a>
</li>
<li class="chapter " data-level="3.6.2" data-path="vdbeauxc/prepare.html">