📄 sqlserver_dblibrary.html
字号:
<html><head><meta name="KEYWORDS" content=" library, C++, Oracle, SQLServer, DB2, Sybase, Informix, InterBase, SQLBase, ODBC,
SQL, server, client, database, programming, development, software,
Win32, Windows, Linux, Unix, Solaris,
Microsoft, Borland, Centura, Gupta, IBM"><meta name="DESCRIPTION" content=
"SQLAPI++ is C++ library for accessing SQL databases (Oracle, SQLServer, Sybase, DB2, InterBase, SQLBase, Informix, ODBC).
It uses native APIs, provides low-level access to database-specific features."><title>SQLAPI++ Library - Server Specific Guide - SQL Server (DB-Library)</title></head><body bgcolor="#ffffff" BACKGROUND="../images/bg.gif" text="#000000"><!--class="GlbHdr"-->
<table WIDTH=600 height=40
frame=hsides BORDER="2" BORDERCOLOR="#004fcd" align="right" cellpadding="0" cellspacing="2" id="TABLE1">
<tr><!--class="GlbDefault"-->
<td width=70 bgcolor=#000094 bordercolor=black align=middle>
<A href="../index.html" style="TEXT-DECORATION: none" >
<font color=white size=3 face=sans-serif>
<b>Home</b></font></A></td></TD>
<td width=70 bgcolor=#000094 bordercolor=black align=middle>
<A href="../HowTo/index.html" style="TEXT-DECORATION: none" >
<font color=white size=3
face=sans-serif>
<b>How To</b></font></A></td><!--class="GlbActive"-->
<td width=70 bgcolor=#00bb00 bordercolor=black align=middle>
<A href="../OnLineDoc/index.html" style="TEXT-DECORATION: none" >
<font color=white size=3
face=sans-serif>
<b>Online Documentation</b></font></A></td><!--class="GlbDefault"-->
<td width=70 bgcolor=#000094 bordercolor=black align=middle>
<A href="../Support/index.html" style="TEXT-DECORATION: none" >
<font color=white size=3
face=sans-serif>
<b>Support</b></font></A></td>
<td width=70 bgcolor=#000094 bordercolor=black align=middle>
<A href="../Download/index.html" style="TEXT-DECORATION: none" >
<font color=white size=3
face=sans-serif>
<b>Download</b></font></A></td>
<td width=70 bgcolor=#000094 bordercolor=black align=middle>
<A href="../Order/index.html" style="TEXT-DECORATION: none" >
<font color=white size=3
face=sans-serif>
<b>Order</b></font></A></td>
</tr>
</table>
<p> </p>
<p> </p>
<table width="100%">
<tr>
<td valign=top width=165><!--class="LeftMenu"-->
<table frame=void CELLSPACING=5 width=165>
<tr>
<td><p><br></p></td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/Command.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SACommand</A> </FONT> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/Connection.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SAConnection</A> </FONT> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/Exception.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SAException</font></A> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/Field.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SAField</A> </FONT> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/Param.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SAParam</A> </FONT> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/String.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SAString</A> </FONT> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/DateTime.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SADateTime</A> </FONT> </td>
</tr>
<tr>
<td><img align=middle src="../images/green.gif" WIDTH="12" HEIGHT="12">
<A href="../OnLineDoc/Numeric.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
SANumeric</A> </FONT> </td>
</tr>
<tr><td><hr></td></tr>
<tr>
<td>
<A href="../OnLineDoc/Enums.html" style ="TEXT-DECORATION: none" >
<font color=white size=2 face=sans-serif>
Enums and Typedefs</A> </FONT> </td>
</tr>
</table>
</td><!--empty column-->
<td width=20>
<p> </p>
</td><!--Content-->
<td valign=top align=left>
<center>
<H2><A href="index.html">Server Specific Guide</A></H2>
<h1>SQL Server<BR>(DB-Library)</h1>
<P align=left>SQLAPI++ allows to work with a number of SQL database
servers. It provides common mechanisms to access database, and as a
general rule they work for any database server. But each server has
some specific features which developer has to know to use all
server's capability and avoid potential errors.</P>
<P align=left>This page collects all <STRONG>specific</STRONG> information that concerns
working with <STRONG> SQL Server (DB-Library API)</STRONG>
using SQLAPI++
Library. Full information about using SQLAPI++ see in <A
href="../HowTo/index.html">How To</A>
and <A
href="../OnLineDoc/index.html">Online Documentation</A>
.
</P>
<P align=left>Available topics:
</P>
</center>
<P><A
href="SQLServer_DbLibrary.html#Connecting to a database">Connecting to a
database</A></P>
<P><A
href="SQLServer_DbLibrary.html#Transaction isolation levels">Transaction
isolation levels</A></P>
<P><A
href="SQLServer_DbLibrary.html#Working with Long or Lob(CLob, BLob) data">Working with
Long or Lob(CLob, BLob) data</A></P>
<P><A
href="SQLServer_DbLibrary.html#Returning output parameters">Returning output parameters</A></P>
<P><A href="SQLServer_DbLibrary.html#Cancelling queries">Cancelling
queries</A></P>
<P><A
href="SQLServer_DbLibrary.html#Connection and command options">Connection,
command, parameter and
field options</A></P>
<P><A
href="SQLServer_DbLibrary.html#Getting native SQL Server API"> Getting
native SQL Server (DB-Library) API</A></P>
<P><A
href="SQLServer_DbLibrary.html#Getting native SQL Server connection related handles"> Getting
native SQL Server (DB-Library) connection related
handles</A></P>
<P><A
href="SQLServer_DbLibrary.html#Getting native SQL Server command related handles"> Getting
native SQL Server (DB-Library) command related
handles</A></P>
<P><A href="SQLServer_DbLibrary.html#Error handling">Error
handling</A></P>
<P><A href="SQLServer_DbLibrary.html#Special header files - Compile time">Special header files - Compile time</A></P>
<P> </P>
<H3><A
name="Connecting to a database">Connecting to a database</A> </H3>
<P align=left>To connect to a database you should create a
connection object and then connect it. A connection object is
represented by <A href="../OnLineDoc/Connection.html" >SAConnection</A> class: </P>
<P align=left><FONT face=System>SAConnection
con;<BR></FONT></P>
<P align=left>Starting from version 3.3.1
SQLAPI++ Library uses <U>OLE DB as default API</U> when working with
<STRONG>SQL Server</STRONG>. If you want to use
<STRONG>DB-Library</STRONG>, you should set
"<STRONG>UseAPI</STRONG>" <A
href="SQLServer_DbLibrary.html#Connection and command options">connection
option</A> before
specifying SQL Server client or connecting to database:</P>
<P align=left><FONT color=black
face=System>con.setOption( "UseAPI" ) =
"DB-Library";<BR></FONT></P>
<P align=left>
If the Library cann't find
<STRONG>DB-Library</STRONG> interface it throws an
exception.</P>
<P align=left>
After the connection is created you need to connect it to
<STRONG>SQL Server</STRONG>
using <A href="../OnLineDoc/Connection_Connect.html" >SAConnection::Connect</A>
method</P>
<p><font face=Arial><b
>void Connect( const SAString
&</b>sDBString<b>, const SAString
&</b>sUserID<b>, const SAString
&</b>sPassword<b>, SAClient_t</b>
eSAClient<b> =
SA_Client_NotSpecified );</b> <BR></font></p>
<p>with the following parameters:</p>
<P><EM>sDBString.</EM>
One of the following
formats:</P>
<UL>
<LI><STRONG>""
or "@"</STRONG> - empty string or '@' character,
connects to a default database on a local server.
<LI><STRONG><database
name> or @ <STRONG><database name>
</STRONG></STRONG>- connects to a database with the specified
name on your local server.
<LI><STRONG><server
name>@ </STRONG>- connects to a default database on the
specified server.
<LI><STRONG><server
name>@<database name> </STRONG>- connects to a database
with the specified name on the specified server.</LI></UL>
<P>To connect to a named instance of SQL Server 2000 use
<STRONG><server name\instance name></STRONG> instead of
<STRONG><server name></STRONG>.</P>
<P><EM>sUserID.</EM> A string containing a user
name to use when establishing the connection. If <EM>sUserID</EM> parameter is empty, SQLAPI++ Library requests a
secure, or trusted, connection to SQL Server.<BR>
<BR><EM>sPassword.</EM> A
string containing a password to use when establishing the
connection.<BR>
<BR><EM>eSAClient.</EM> Optional. One of the
following values from <STRONG>SAClient_t</STRONG> enum:
<UL>
⌨️ 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 + -