OCCI and globalization (getString)

Question

Welcome again :-)
I have another problem now. I have a code
using namespace oracle::occi;
using namespace std;
int i;
int main (int argc, char **argv) {
    Environment *env = Environment::createEnvironment("US7ASCII","EE8ISO8859P2");
string txt;
int value;
    Connection *conn = env->createConnection("user", "pass", "db");
    Statement *stmt = conn->createStatement("SELECT sp_id, sp_skrot FROM gpw_spolki WHERE rownum <= 5");
    ResultSet *rs = stmt->executeQuery();
    for (int i=0; i<5; i++) {
     rs->next();
     value = rs->getInt(1);
     txt = rs->getString(2);
        printf("Spółka: %d %s\n",value,&txt);
    stmt->closeResultSet(rs);
    conn->terminateStatement(stmt);
    Environment::terminateEnvironment(env);
    return 1;
}and string read from database are not readable. Could someone tell me, what parameters should I put in createEnvironment method? My NLS_LANG is POLISH_POLAND.EE8ISO8859P2 and data inserted to database are so in iso8859-2.
Thanks in advance.

Answer 1

Environment::createEnvironment("US7ASCII","EE8ISO88592");What's the definition of your columns? varchar2? nvarchar2?
for (int i=0; i<5; i++) {
rs->next();Better to always write a while (rs->next()) loop IMHO.
printf("Spółka: %d %s\n", value, &txt);Try using txt.c_str() rather than &txt. printf is a vararg-based function, and as such it's untyped. Better to use C++ iostream in fact:
cout << "Spółka: " << value << " " << txt << endl;
But beware that you ask all varchar2 strings to be converted to 7-bit ASCII, so all you accented Polish chars and other Polish-specific chars may get garbled.
It all depends how your DB's Character Set and National Character Set are setup, as we discussed in another thread. --DD