OTL 4.0, Example 632 (otl_datetime)

This example demonstrates simple INSERT and SELECT with EDB DATEs and otl_datetime.

Source Code

#include <iostream>
using namespace std;

#include <stdio.h>
// Compile OTL 4.0/ODBC in Windows. Informix CLI uses the  
// regular ODBC header files in Windows
#define OTL_ODBC

// Uncomment the #defines below in Linux / Unix
//#define OTL_ODBC_UNIX
//#define OTL_INFORMIX_CLI
#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(50, // buffer size
"insert into test_tab2 values(:f1<int>,:f2<timestamp>)",
// SQL statement
db // connect object
);

otl_datetime tm;

for(int i=1;i<=10;++i){
tm.year=2008;
tm.month=10;
tm.day=19;
tm.hour=23;
tm.minute=12;
tm.second=12;
o<<i<<tm;
}
}

void select(void)
{
otl_stream i(50, // buffer size
"select * from test_tab2 where f2=:f2<timestamp>",
// SELECT statement
db // connect object
);
// create select stream

int f1;
otl_datetime tm,f2;

tm.year=2008;
tm.month=10;
tm.day=19;
tm.hour=23;
tm.minute=12;
tm.second=12;

i<<tm; // assigning :f2 = tm
// SELECT automatically executes when all input variables are
// assigned. First portion of out rows is fetched to the buffer

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

}
int main()
{
otl_connect::otl_initialize(); // initialize Informix CLI environment
try{

db.rlogon("informix/tigger@informixsql"); // connect to Informix

otl_cursor::direct_exec
(
db,
"drop table test_tab2",
otl_exception::disabled // disable OTL exceptions
); // drop table

otl_cursor::direct_exec
(
db,
"create table test_tab2(f1 int, f2 datetime year to second)"
); // 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.var_info<<endl; // print out the variable that caused the error
}

db.logoff(); // disconnect from Informix

return 0;

}

Output

f1=1, f2=10/19/2008 23:12:12
f1=2, f2=10/19/2008 23:12:12
f1=3, f2=10/19/2008 23:12:12
f1=4, f2=10/19/2008 23:12:12
f1=5, f2=10/19/2008 23:12:12
f1=6, f2=10/19/2008 23:12:12
f1=7, f2=10/19/2008 23:12:12
f1=8, f2=10/19/2008 23:12:12
f1=9, f2=10/19/2008 23:12:12
f1=10, f2=10/19/2008 23:12:12

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Copyright © 1996-2017, Sergei Kuchin, email: skuchin@gmail.com, skuchin@gmail.com .

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