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<title>OTL 4.0, Example 233 (#define OTL_ORA_MAP_STRINGS_TO_CHARZ,
Oracle 8, 8i, 9i))</title>
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<h1>OTL 4.Example 233 (#define OTL_ORA_MAP_STRINGS_TO_CHARZ, Oracle 8,
8i,
9i)</h1>
</center>
<h1>
Example 233 (#define OTL_ORA_MAP_STRINGS_TO_CHARZ, Oracle 8, 8i, 9i)</h1>
This example demonstrates #define <a
href="otl3_compile.htm#OTL_ORA_MAP_STRINGS_TO_CHARZ">OTL_ORA_MAP_STRINGS_TO_CHARZ</a>.
<h2>
Source Code</h2>
<pre>#include <iostream><br>using namespace std;<br><br>#include <stdio.h></pre>
<pre>//#define OTL_ORA8 // Compile OTL 4.0/OCI8<br>//#define OTL_ORA9I // Compile OTL 4.0/OCI9i<br>#define OTL_ORA8I // Compile OTL 4.0/OCI8i<br>#define OTL_ORA_MAP_STRINGS_TO_CHARZ<br>#include <otlv4.h> // include the OTL 4.0 header file<br><br><a
href="otl3_connect_class.htm">otl_connect</a> db; // connect object<br><br>void insert()<br>// insert rows into table<br>{ <br> <a
href="otl3_stream_class.htm">otl_stream</a> o(5, // buffer size<br> "insert into test_tab values(:f1<int>,:f2<char[11]>)", <br> // SQL statement<br> db // connect object<br> );<br> o<<1<<"Name";<br> o<<2<<"Name ";<br> o<<3<<"Name ";<br>}<br><br>void select()<br>{ <br> <a
href="otl3_stream_class.htm">otl_stream</a> i(5, // buffer size<br> "select * from test_tab where f2=:f2<char[11]>",<br> // SELECT statement<br> db // connect object<br> ); <br> // create select stream<br> <br> int f1;<br> char f2[31];<br><br> i<<"Name"; // assigning :f2 = 'Name'<br> // SELECT automatically executes when all input variables are<br> // assigned. First portion of output rows is fetched to the buffer<br><br> while(!i.eof()){ // while not end-of-data<br> i>>f1>>f2;<br> cout<<"f1="<<f1<<", f2='"<<f2<<"'"<<endl;<br> }<br><br>}<br><br>int main()<br>{<br> <a
href="otl3_connect_class.htm">otl_connect::otl_initialize</a>(); // initialize OCI environment<br> try{<br><br> db.rlogon("scott/tiger"); // connect to Oracle<br><br> <a
href="otl3_const_sql.htm">otl_cursor::direct_exec<br></a> (<br> db,<br> "drop table test_tab",<br> otl_exception::disabled // disable OTL exceptions<br> ); // drop table<br><br> <a
href="otl3_const_sql.htm">otl_cursor::direct_exec<br></a> (<br> db,<br> "create table test_tab(f1 number, f2 varchar2(10))"<br> ); // create table<br><br> cout<<"========= table with a VARCHAR2 column ========"<<endl;<br> insert(); // insert records into table<br> select(); // select records from table<br><br> <a
href="otl3_const_sql.htm">otl_cursor::direct_exec<br></a> (<br> db,<br> "drop table test_tab",<br> otl_exception::disabled // disable OTL exceptions<br> ); // drop table<br><br> <a
href="otl3_const_sql.htm">otl_cursor::direct_exec<br></a> (<br> db,<br> "create table test_tab(f1 number, f2 char(10))"<br> ); // create table<br><br> cout<<"========= table with a CHAR column ========"<<endl;<br> insert(); // insert records into table<br> select(); // select records from table<br><br> }<br><br> catch(<a
href="otl3_exception_class.htm">otl_exception</a>& p){ // intercept OTL exceptions<br> cerr<<p.msg<<endl; // print out error message<br> cerr<<p.stm_text<<endl; // print out SQL that caused the error<br> cerr<<p.var_info<<endl; // print out the variable that caused the error<br> }<br><br> db.logoff(); // disconnect from Oracle<br><br> return 0;<br><br>}</pre>
<h2>
Output</h2>
<pre>========= table with a VARCHAR2 column ========<br>f1=1, f2='Name'<br>========= table with a CHAR column ========<br>f1=1, f2='Name '<br>f1=2, f2='Name '<br>f1=3, f2='Name '<br><hr
width="100%"></pre>
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