晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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<center><b><font face="Arial,Helvetica"><font size=+3>PROGRAMMER MANUAL</font></font></b>
<br><b><font face="Arial,Helvetica">Peter Harvey</font></b>
<br><b><font face="Arial,Helvetica">19.DEC.01</font></b></center>

<p><b><font face="Arial,Helvetica">Introduction</font></b><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">Welcome to the unixODBC&nbsp;Programmer
Manual. This manual is a starting point for a programmer who is interested
in developing an application which *uses* ODBC. This manual does not address
Driver development or any other development which is internal to the ODBC&nbsp;sub-system.</font><font face="Arial,Helvetica"></font>
<p><b><font face="Arial,Helvetica">Why Use ODBC?</font></b><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">ODBC&nbsp;provides a portable Application
Programmers Interface (API) with which to access data. This means that
your data access code will recompile without changes on all popular platforms.
In practice; portability is sometimes hampered by incomplete drivers. However;
the core ODBC functionality (the most used functionality) is always supported
any working driver. Other advantages to developing with ODBC&nbsp;include;</font>
<ul>
<li>
<font face="Arial,Helvetica">most popular API of its kind</font></li>

<li>
<font face="Arial,Helvetica">most mature API of its kind</font></li>

<li>
<font face="Arial,Helvetica">skills more reusable/easily found</font></li>

<li>
<font face="Arial,Helvetica">hundreds, if not thousands, of applications
use it</font></li>

<li>
<font face="Arial,Helvetica">availible on all majour platforms</font></li>

<li>
<font face="Arial,Helvetica">easy to change data storage solution/vendor
(ah; freedom)</font></li>

<li>
<font face="Arial,Helvetica">easy to upscale data storage (developer and
end-user)</font></li>

<li>
<font face="Arial,Helvetica">arguably the most complete API of its kind</font></li>

<li>
<font face="Arial,Helvetica">many books on the subject</font></li>

<li>
<font face="Arial,Helvetica">greater support base</font></li>
</ul>
<b><font face="Arial,Helvetica">Languages Supported</font></b><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">ODBC&nbsp;is based upon a C API. C++ programmers
will find a number of C++ class libraries for using the ODBC&nbsp;API.
These are wrappers - using the C&nbsp;API&nbsp;internally but can provide
a much nicer way to use ODBC for C++ programmers.</font><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">Any language which can call a C API should
be able to use the ODBC&nbsp;API and most languages, such as PHP and Perl,
provide an interface to work with ODBC but these are not covered in this
manual.</font><font face="Arial,Helvetica"></font>
<p><b><font face="Arial,Helvetica">Architecture</font></b><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">Client Libraries</font><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">These are client libraries which are specific
to the particular database being used. These, often, provide a C API of
their own which is used by Driver developers. In some cases these exist
inside of the Driver itself or are staticly linked into the Driver. Any
Client Libraries required by a Driver will be a part of the installation
of your Driver or will simply be a requirement for the installation of
your Driver. Sometimes Client Libraries must be configured before any ODBC&nbsp;configuration.</font><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">Driver</font><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">Driver Manager</font><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">The Driver Manager acts as a gateway to
the ODBC&nbsp;drivers. The main advantage to having a Driver Manager is
that the end-user can configure the Driver Manager to use a different Driver
than the one original conceived of by the programmer.</font><font face="Arial,Helvetica"></font>
<p><font face="Arial,Helvetica">It as virtualy identical functions declarations
as a Driver which means that one *could* create an application</font>
<br><font face="Arial,Helvetica"></font>&nbsp;
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haha - 2025