#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
#if defined(_MSC_VER) // VC++
// Enabling support for 64-bit signed integers
// Since 64-bit integers are not part of the ANSI C++
// standard, this definition is compiler specific.
#define OTL_BIGINT __int64
// Defining a bigint constant that is larger than
// the max 32-bit integer value.
const OTL_BIGINT BIGINT_VAL1=12345678901234000;
#elif defined(__GNUC__) // GNU C++
#include <stdlib.h>
// Enabling support for 64-bit signed integers
// Since 64-bit integers are not part of the ANSI C++
// standard, this definition is compiler specific.
#define OTL_BIGINT long long
const OTL_BIGINT BIGINT_VAL1=12345678901234000LL;
#endif
#include <otlv4.h> // include the OTL 4.0 header file
otl_connect db; // connect object
void insert()
// insert rows into table
{
otl_stream o(50, // buffer size
"insert into test_tab values(:f1<bigint>,:f2<char[31]>)",
// SQL statement
db // connect object
);
char tmp[32];
for(OTL_BIGINT i=BIGINT_VAL1;i<=BIGINT_VAL1+100;++i){
int ndx=(int)(i-BIGINT_VAL1);
sprintf(tmp,"Name%d",ndx);
o<<i<<tmp;
}
}
void select()
{
otl_stream i(50, // buffer size
"select f1 :#1<bigint>, f2 "
// the default mapping of f1 needs to be overriden
// explicitly
"from test_tab "
"where f1>=:f<bigint> "
" and f1<=:ff<bigint>",
// SELECT statement
db // connect object
);
// create select stream
OTL_BIGINT f1;
char f2[31];
#if defined(_MSC_VER)
char f1str[40];
#endif
i<<BIGINT_VAL1+8
<<BIGINT_VAL1+16; // assigning :f = 8; :ff = 8
// SELECT automatically executes when all input variables are
// assigned. First portion of output rows is fetched to the buffer
while(!i.eof()){ // while not end-of-data
i>>f1>>f2;
cout<<"f1=";
#if defined(_MSC_VER)
_i64toa(f1,f1str,10);
cout<<f1str<<", f2="<<f2<<endl;
#elif defined(__GNUC__)
cout<<f1<<", f2="<<f2<<endl;
#endif
}
}
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_tab",
otl_exception::disabled // disable OTL exceptions
); // drop table
otl_cursor::direct_exec
(
db,
"create table test_tab(f1 int8, f2 varchar(30))"
); // 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;
}
f1=12345678901234008, f2=Name8
f1=12345678901234009, f2=Name9
f1=12345678901234010, f2=Name10
f1=12345678901234011, f2=Name11
f1=12345678901234012, f2=Name12
f1=12345678901234013, f2=Name13
f1=12345678901234014, f2=Name14
f1=12345678901234015, f2=Name15
f1=12345678901234016, f2=Name16
Copyright © 1996-2025, Sergei Kuchin, email: skuchin@gmail.com, skuchin@gmail.com/a>.