#include <iostream.h> #include <stdio.h> #define OTL_ODBC // Compile OTL 4.0/ODBC #include <otlv4.h> otl_connect db; // connect object void stored_proc(void) // invoking stored procedure { otl_stream o(1, // buffer size should be equal to 1 in case of stored procedure call "{call my_proc(" " :A<int,inout>, " " :B<char[31],out>, " " :C<char[31],in> " ")}", // stored procedure call db // connect object ); o.set_commit(0); // set stream auto-commit off since // the stream does not generate transaction o<<1<<"Test String1"; // assigning :1 = 1, :3 = "Test String1" int a; char b[31]; o>>a>>b; cout<<"A="<<a<<", B="<<b<<endl; } int main() { otl_connect::otl_initialize(); // initialize ODBC environment try{ db.rlogon("uid=scott;pwd=tiger;dsn=sapdb"); // connect to ODBC otl_cursor::direct_exec (db, "CREATE DBPROC my_proc (" " INOUT A INTEGER, " " OUT B VARCHAR(60), " " IN C VARCHAR(60) " ") AS " "BEGIN " " SET A = A + 1;" " SET B = C;" "END;" ); // create stored procedure stored_proc(); // invoking stored procedure } catch(otl_exception& p){ // intercept OTL exceptions cerr<<p.msg<<endl; // print out error message cerr<<p.code<<endl; // print out error code cerr<<p.var_info<<endl; // print out the variable that caused the error cerr<<p.sqlstate<<endl; // print out SQLSTATE message cerr<<p.stm_text<<endl; // print out SQL that caused the error } db.logoff(); // disconnect from the data source return 0; }
A=2, B=Test String1
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