#include <iostream>
using namespace std;
#include <stdio.h>
#define OTL_ODBC // Compile OTL 4.0/ODBC
#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(3, // stream buffer size in logical rows.
"insert into test_tab "
"values(:f1<int>,:f2<timestamp>)",
// INSERT statement
db // connect object
);
otl_datetime tm;
for(int i=1;i<=10;++i){
tm.year=1998;
tm.month=10;
tm.day=19;
tm.hour=23;
tm.minute=12;
tm.second=12;
tm.frac_precision=3; // milliseconds
tm.fraction=123;
o<<i<<tm;
}
}
void select(void)
{
otl_stream i(5, // stream buffer size in logical rows
"select * from test_tab",
// SELECT statement
db // connect object
);
int f1;
otl_datetime f2;
// Second's precision needs to be specified BEFORE the stucture can be
// used either for writnig or reading timestamp values, which have second's
// fractional part.
f2.frac_precision=3; // milliseconds
while(!i.eof()){ // while not end-of-data
i>>f1>>f2;
cout<<"f1="<<f1;
cout<<", f2="<<f2.month<<"/"<<f2.day<<"/"
<<f2.year<<" "<<f2.hour<<":"<<f2.minute<<":"
<<f2.second<<"."
<<f2.fraction;
cout<<endl;
}
}
int main()
{
otl_connect::otl_initialize(); // initialize ODBC environment
try{
db.rlogon("scott/tiger@mssql"); // connect to MS SQL Server
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 datetime)"
); // 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 MS SQL Server
return 0;
}
f1=1, f2=10/19/1998 23:12:12.123
f1=2, f2=10/19/1998 23:12:12.123
f1=3, f2=10/19/1998 23:12:12.123
f1=4, f2=10/19/1998 23:12:12.123
f1=5, f2=10/19/1998 23:12:12.123
f1=6, f2=10/19/1998 23:12:12.123
f1=7, f2=10/19/1998 23:12:12.123
f1=8, f2=10/19/1998 23:12:12.123
f1=9, f2=10/19/1998 23:12:12.123
f1=10, f2=10/19/1998 23:12:12.123
Copyright © 1996, 2007, Sergei Kuchin, email: skuchin@ispwest.com, skuchin@gmail.com .
Permission to use, copy, modify and redistribute this document for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies.