📄 rm_ch1.htm
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html hdpos="0"><head><meta name="generator" content="HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org"><meta http-equiv="content-type" content="text/html; charset=us-ascii"><meta name="Generator" content="Microsoft Word 97"><title>db.* Reference Manual Chapter 1</title></head><body><h1><a name="Introduction" id="Introduction"></a>Chapter 1<br>Introduction</h1><p><font size="2">This book is the reference manual for theembedded database <b><i>db.*</i></b>. It provides completedescriptions of all <b><i>db.*</i></b> utilities, functions, andreturn codes. The information provided explains system capabilitiesin detail, but does not explain how to use them. Information on useof the functions and utilities can be found in the other books ofthe set.</font></p><h2><a name="Documentation" id="Documentation"></a>1.1 <i>db.*</i>Documentation</h2><p><font size="2">The <b><i>db.*</i></b> documentation is athree-manual set and includes this <i>Reference Manual</i>, the<b><i>db.*</i></b> <i>User's Guide</i>, and the <i><b>db.*</b></i><i>Multi-User Guide</i>.</font></p><h3><a name="AboutManual" id="AboutManual"></a>1.1.1 About thisManual</h3><p><font size="2">This reference manual is organized asfollows:</font></p><ul><li>Chapter 2, "Utility Descriptions," contains descriptions of all<b><i>db.*</i></b> utility programs.</li><li>Chapter 3, "Function Descriptions," contains descriptions ofthe <b><i>db.*</i></b> runtime library functions.</li><li>Chapter 4, "Return Codes," contains descriptions of all<b><i>db.*</i></b> status and error codes.</li></ul><h3><a name="FunctionRefs" id="FunctionRefs"></a>1.1.2 About theFunction References in this Manual</h3><p><font size="2">For each function described in this referencemanual, the reference page header tells you the function name. Thefirst entry on the page is a quick description of the function.This is followed by a Prototypes section that gives a synopsis ofthe actual function declaration (C-style).</font></p><p>Following the Prototypes section, you will find the Parametersheading, which lists and defines the function parameters introducedin the function declaration.</p><p>A Description section follows the parameter definitions. In thissection, we explain operational details of the function.</p><p>After the function is described, the Currency Changes sectionprovides information on those functions that can cause currencychanges.</p><p>Following Currency Changes, the function reference presents theLocking Requirements section, which lists locking requirements forany function that accesses the database. If your application hasopened the database in a non-shared mode, locking is notrequired.</p><p>The next section is Return Codes and contains the error/statuscodes for the function, listed in alphabetical order. Detaileddefinitions of the codes are provided in Chapter 4.</p><p>The final sections of the function reference provide an Exampleof how the function is called and a See Also reference.</p><h3><a name="RelatedDocs" id="RelatedDocs"></a>1.1.3 Related<i>db.*</i> Documents</h3><p><font size="2">This book is the companion volume to the<b><i>db.*</i></b> <i>User's Guide</i> and the <b><i>db.*</i></b><i>Multi-User Guide.</i></font></p><p>The <b><i>db.*</i></b> <i>User's Guide</i> describes<b><i>db.*</i></b> in detail and provides in-depth instructions forthe <b><i>db.*</i></b> application developer. The<b><i>db.*</i></b> <i>Multi-User Guide</i> contains the informationyou need to build your application in the multi-user mode.</p><p>The <b><i>db.*</i></b> system includes a <b>readme.1st</b> filethat contains the release notes for your particular operatingenvironment. Be sure to read this file carefully. It providesdetailed information about:</p><ul><li>Recent changes to the system that are not documented in thecurrent manuals</li><li>Issues specific to your particular operating system orcompiler</li></ul><h3><a name="Conventions" id="Conventions"></a>1.1.4 DocumentConventions</h3><p><font size="2">Table 1-1 describes the notational conventionsused in this manual.</font></p><p align="center"><b>Table 1-1. Document NotationalConventions</b></p><table cellspacing="0" border="0" cellpadding="7" width="590"><tr><td width="33%" valign="top"><p><b><font size="2">Convention</font></b></p></td><td width="67%" valign="top"><p><b><font size="2">Description</font></b></p></td></tr><tr><td width="33%" valign="top"><p><b><font size="2">Bold Text</font></b></p></td><td width="67%" valign="top"><p><font size="2">Indicates the names of functions, commands, datastructures, statements, databases, utilities, files, etc. Note thatthe case distinctions used in the names are not significant for alloperating systems.</font></p></td></tr><tr><td width="33%" valign="top"><p><i><font size="2">Italic Text</font></i></p></td><td width="67%" valign="top"><p><font size="2">Represents the names of variables, such asparameters and command options. Additionally, the<b><i>db.*</i></b> documents use italics for the names ofbooks.</font></p></td></tr><tr><td width="33%" valign="top"><p><font face="Courier" size="2" color="#0000FF">Courier, ColoredText</font></p></td><td width="67%" valign="top"><p><font size="2">Indicates a programming example or a command-lineentry. Examples are usually enclosed in boxes.</font></p></td></tr><tr><td width="33%" valign="top"><p><font size="2">Brackets ([ ])</font></p></td><td width="67%" valign="top"><p><font size="2">Indicate optional fields or parameters in commandlines and syntax statements.</font></p></td></tr><tr><td width="33%" valign="top"><p><font size="2">Bar Symbol (|)</font></p></td><td width="67%" valign="top"><p><font size="2">Separates alternative selections. You shouldenter one of the items separated by the bar.</font></p></td></tr><tr><td width="33%" valign="top"><p><font size="2">Ellipsis (...)</font></p></td><td width="67%" valign="top"><p><font size="2">Indicates that code has been omitted. Bothhorizontal and vertical ellipses are used.</font></p></td></tr><tr><td width="33%" valign="top"><p><font size="2">Arrow Symbols (< >)</font></p></td><td width="67%" valign="top"><p><font size="2">Indicate information that you must supply. Forexample, <b><filename>.h</b> represents a header file thatyou name. Arrow symbols are also used in text to set off keyboardkey names, as in <Ctrl>.</font></p></td></tr></table><h2><a name="Resources" id="Resources"></a>1.2 Other HelpfulResources</h2><p><b><font size="2">Worldwide Web</font><br>Further documentation and online forums discussing <i>db.*</i> areavailable on ITTIA's home page located at <a href="http://www.ittia.com">http://www.ittia.com</a>.</b></p><p><a href="RM_Ch2.htm">Next Page</a></p></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -