#include <iostream>
using namespace std;
#include <stdio.h>
#define OTL_ORA9I // Compile OTL 4.0/OCI9i
#define OTL_ORA_UTF8 // Enable UTF8 OTL for OCI9i
#include <otlv4.h> // include the OTL 4.0 header file
// Sample UTF8 based string
unsigned char utf8_sample[]=
{0x61,0x62,0x63,0xd0,0x9e,0xd0,0x9b,0xd0,
0xac,0xd0,0x93,0xd0,0x90,0x0};
otl_connect db; // connect object
void insert()
// insert rows into table
{
otl_stream o(50, // buffer size
"insert into test_tab values(:f1<int>,:f2<nchar[31]>)",
// SQL statement
db // connect object
);
unsigned char tmp[31];
for(int i=1;i<=100;++i){
strcpy(reinterpret_cast<char*>(tmp),reinterpret_cast<const char*>(utf8_sample));
o<<i;
o<<tmp;
}
}
void select()
{
otl_stream i(1, // buffer size
"begin "
" open :cur<refcur,out[50]> for "
// :cur is a bind variable name, refcur -- its type,
// out -- output parameter, 50 -- the buffer size when this
// reference cursor will be attached to otl_refcur_stream
" select * "
" from test_tab "
" where f1>=:f<int,in> and f1<=:f*2; "
"end;", // PL/SQL block returns a referenced cursor
db // connect object
);
// create select stream with referenced cursor
i.set_commit(0); // set stream "auto-commit" to OFF.
int f1;
unsigned char f2[31];
otl_refcur_stream s; // reference cursor stream for reading rows.
i<<8; // assigning :f = 8
i>>s; // initializing the refrence cursor stream with the output
// reference cursor.
while(!s.eof()){ // while not end-of-data
s>>f1;
s>>f2;
cout<<"f1="<<f1<<", f2=";
for(int j=0;f2[j]!=0;++j)
printf("%2x ", f2[j]);
cout<<endl;
}
s.close(); // closing the reference cursor
i<<4; // assigning :f = 4
i>>s;
while(!s.eof()){ // while not end-of-data
s>>f1;
s>>f2;
cout<<"f1="<<f1<<", f2=";
for(int j=0;f2[j]!=0;++j)
printf("%2x ", f2[j]);
cout<<endl;
}
// there is no need to explicitly calls s.close() since s's destructor
// will take care of closing the stream
}
int main()
{
putenv(const_cast<char*>("NLS_LANG=.AL32UTF8")); // set your Oracle Client NLS_LANG
// if its default was set to something else
otl_connect::otl_initialize(); // initialize OCI environment
try{
db.rlogon("scott/tiger"); // connect to Oracle
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 number, f2 nvarchar2(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 Oracle
return 0;
}
f1=8, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=9, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=10, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=11, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=12, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=13, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=14, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=15, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=16, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=4, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=5, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=6, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=7, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
f1=8, f2=61 62 63 d0 9e d0 9b d0 ac d0 93 d0 90
Copyright © 1996-2023, Sergei Kuchin, email: skuchin@gmail.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. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.