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<title>OTL 4.0, Example 295 (otl_datetime container and
DATE/TIME/TIMESTAMP table containers)</title>
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<h1>OTL 4.0, Example 295 (otl_datetime container and
DATE/TIME/TIMESTAMP table
columns)</h1>
</center>
<h1>
Example 295 (otl_datetime container and DATE/TIME/TIMESTAMP table
columns)</h1>
This example demonstrates simple INSERT/SELECT with
DATEs/TIMEs/TIMESTAMPs
and <a href="otl3_stream_class.htm#otl_datetime">otl_datetime</a>.
This examples was linked with the TimesTen Client ODBC Driver library
(libttclient.so (Linux/Unix), ttclient.lib (Windows)).
<h2>Source Code</h2>
<pre>#include <iostream><br>using namespace std;<br><br>#include <stdio.h></pre>
<pre>#define <a href="otl3_compile.htm#OTL_ODBC_TIMESTEN_WIN">OTL_ODBC_TIMESTEN_WIN</a> // Compile OTL 4.0/TimesTen ODBC for Windows<br>// Uncomment the following when building this example in Unix/Linux<br>// #define <a
href="otl3_compile.htm#OTL_ODBC_TIMESTEN_UNIX">OTL_ODBC_TIMESTEN_UNIX</a> // Compile OTL 4.0/TimesTen ODBC for Unix<br><br>// #define OTL_ODBC_UNIX // uncomment this line if UnixODBC is used<br>#include <otlv4.h> // include the OTL 4.0 header file<br><br><br><a
href="otl3_connect_class.htm">otl_connect</a> db; // connect object<br><br>void insert(void)<br>// insert rows into table<br>{ <br> <a
href="otl3_stream_class.htm#no_commit">otl_stream</a> <br> o(10, // buffer size<br> "insert into test_tab "<br> "values(:f1<int>,:f2<<a
href="otl3_bind_variables.htm#timestamp">timestamp</a>>,:f3<<a
href="otl3_bind_variables.htm#timestamp">timestamp</a>>,:f4<<a
href="otl3_bind_variables.htm#timestamp">tim</a><a
href="otl3_bind_variables.htm#timestamp">estamp</a>>)", <br> // INSERT statement<br> db // connect object<br> );<br><br> <a
href="otl3_stream_class.htm#otl_datetime">otl_datetime</a> tm1,tm2,tm3;<br><br> for(int i=1;i<=10;++i){<br><br> tm1.year=1998;<br> tm1.month=10;<br> tm1.day=19;<br>// time conponents should be set to 0<br> tm1.hour=0;<br> tm1.minute=0;<br> tm1.second=0;<br><br>// date conponents should be set to 0<br> tm2.year=0;<br> tm2.month=0;<br> tm2.day=0;<br><br> tm2.hour=23;<br> tm2.minute=12;<br> tm2.second=12;<br><br> tm3.year=1998;<br> tm3.month=10;<br> tm3.day=19;<br> tm3.hour=23;<br> tm3.minute=12;<br> tm3.second=12;<br><br> o<<i<<tm1<<tm2<<tm3;<br><br> }<br> <br>}<br><br>void select(void)<br>{ <br> otl_stream i(10, // buffer size can be set to a value in [1..128] range<br> "select * from test_tab",<br> // SELECT statement<br> db // connect object<br> ); <br> <br> int f1;<br> otl_datetime f2,f3,f4;<br><br> while(!i.eof()){ // while not end-of-data<br> i>>f1>>f2>>f3>>f4;<br> cout<<"f1="<<f1;<br> cout<<", f2="<<f2.month<<"/"<<f2.day<<"/"<br> <<f2.year;<br> cout<<", f3="<<f3.hour<<":"<<f3.minute<<":"<br> <<f3.second;<br> cout<<", f4="<<f4.month<<"/"<<f4.day<<"/"<br> <<f4.year<<" "<<f4.hour<<":"<<f4.minute<<":"<br> <<f4.second;<br> cout<<endl;<br> }<br> <br>}<br></pre>
<pre>int main()<br>{<br> <a href="otl3_connect_class.htm">otl_connect::otl_initialize</a>(); // initialize ODBC environment<br> try{<br><br> db.rlogon("scott/tiger@TT_tt70_32"); <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 int, f2 date, f3 time, f4 timestamp)"<br> ); // create table<br><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.sqlstate<<endl; // print out SQLSTATE message<br> cerr<<p.var_info<<endl; // print out the variable that caused the error<br> }<br><br> db.logoff(); // disconnect from ODBC<br><br> return 0;<br><br>}</pre>
<h2>
Output</h2>
<pre>f1=1, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=2, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=3, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=4, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=5, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=6, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=7, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=8, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=9, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br>f1=10, f2=10/19/1998, f3=23:12:12, f4=10/19/1998 23:12:12<br><br><hr
width="100%"></pre>
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