# OTL 4.0, Example 324 (otl_datetime container and DATE/TIME/TIMESTAMP table columns)

# Example 324 (otl_datetime container and DATE/TIME/TIMESTAMP table columns)

This example demonstrates simple INSERT/SELECT with DATEs/TIMEs/TIMESTAMPs and otl_datetime.

## Source Code

    #include <iostream>
    using namespace std;

    #include <stdio.h>

    #define OTL_ODBC // Compile OTL 4.0/ODBC
    // #define OTL_ODBC_UNIX // uncomment this line if UnixODBC is used
    #include <otlv4.h> // include the OTL 4.0 header file

    otl_connect db; // connect object

    void insert(void)
    // insert rows into table
    {
     otl_stream o(4, // buffer size
                  "insert into test_tab "
                  "values(:f1<int>,:f2<timestamp>, "
                  "       :f3<timestamp>,:f4<timestamp>)",
                       // INSERT statement
                  db // connect object
                 );

     otl_datetime tm;

     for(int i=1;i<=10;++i){
      tm.year=2007;
      tm.month=10;
      tm.day=19;
      tm.hour=23;
      tm.minute=12;
      tm.second=12;
      o<<i<<tm<<tm<<tm;
     }
    }

    void select(void)
    {
     otl_stream i(5, // buffer size
                  "select * from test_tab",
                     // SELECT statement
                  db // connect object
                 );

     int f1;
     otl_datetime f2,f3,f4;

     while(!i.eof()){ // while not end-of-data
      i>>f1>>f2>>f3>>f4;
      cout<<"f1="<<f1;
      cout<<", f2="<<f2.month<<"/"<<f2.day<<"/"
          <<f2.year<<" "<<f2.hour<<":"<<f2.minute<<":"
          <<f2.second;
      cout<<", f3="<<f3.month<<"/"<<f3.day<<"/"
          <<f3.year<<" "<<f3.hour<<":"<<f3.minute<<":"
          <<f3.second;
      cout<<", f4="<<f4.month<<"/"<<f4.day<<"/"
          <<f4.year<<" "<<f4.hour<<":"<<f4.minute<<":"
          <<f4.second;
      cout<<endl;
     }

    }

    int main()
    {
     otl_connect::otl_initialize(); // initialize ODBC environment
     try{

      db.rlogon("scott/tiger@sapdbsql");

      otl_cursor::direct_exec
       (
        db,
        "drop table test_tab",
        otl_exception::disabled // disable OTL exceptions
       ); // drop table

      otl_cursor::direct_exec
       (
        db,
        "create table test_tab(f1 int, f2 date, f3 time, f4 timestamp)"
        );  // create table

      insert(); // insert records into table
      select(); // select records from table

     }

     catch(otl_exception& p){ // intercept OTL exceptions
      cerr<<p.msg<<endl; // print out error message
      cerr<<p.stm_text<<endl; // print out SQL that caused the error
      cerr<<p.sqlstate<<endl; // print out SQLSTATE message
      cerr<<p.var_info<<endl; // print out the variable that caused the error
     }

     db.logoff(); // disconnect from ODBC

     return 0;

    }

## Output

    f1=1, f2=10/19/2007 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=2, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=3, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=4, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=5, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=6, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=7, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=8, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=9, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12
    f1=10, f2=10/19/2005 0:0:0, f3=10/9/2005 23:12:12, f4=10/19/2005 23:12:12

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Copyright © 1996, 2007, Sergei Kuchin, email: skuchin@ispwest.com, skuchin@gmail.com
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