This example demonstrates how to use OTL dynamically allocated PL/SQL table containers for reading/writing PL/SQL tables from/to the otl_stream.
#include <iostream> using namespace std; #include <stdio.h>
#define OTL_ORA7 // Compile OTL 4.0/OCI7 #include <otlv4.h> // include the OTL 4.0 header file otl_connect db; // connect object
void plsql(void) { otl_stream s(1, // buffer size needs to be set to 1 in this case "begin " " pkg_test.prc_test(:t1<int,inout[100]>,:t2<char[32],out[200]>); " "end;", db // connect object ); s.set_commit(0); // Since there is no transactions, unset the stream auto-commit otl_dynamic_int_tab t1(100); // PL/SQL table of int[100] otl_dynamic_cstr_tab<32> t2(200); // PL/SQL table of char[200][32]
t1.v[0]=1; // assign 1 to t1[0] t1.set_non_null(0); // specify that the value is not null t1.v[1]=2; // assign 2 to t1[1] t1.set_non_null(1); // specify that the value is not null t1.set_null(2); // set t1[2]=NULL t1.set_len(3); // set t1's length to 3
s<<t1; // write t1 into the stream, since it is input s>>t1; // read t1 from the stream since it is input/output s>>t2; // read t2 from the stream since it is output.
cout<<"T1_Len="<<t1.len()<<endl; for(int i=0;i<t1.len();++i) if(t1.is_null(i)) cout<<"T1["<<i<<"]=NULL"<<endl; else cout<<"T1["<<i<<"]="<<t1.v[i]<<endl; cout<<endl<<endl<<"T2_Len="<<t2.len()<<endl; for(int j=0;j<t2.len();++j) if(t2.is_null(j)) cout<<"T2["<<j<<"]=NULL"<<endl; else cout<<"T2["<<j<<"]="<<t2.v[j]<<endl; } int main() { otl_connect::otl_initialize(); // initialize OCI environment try{ db.rlogon("scott/tiger"); // connect to Oracle otl_cursor::direct_exec (db, "CREATE OR REPLACE PACKAGE pkg_test IS " " TYPE my_numeric_table IS TABLE OF NUMBER INDEX BY BINARY_INTEGER; " " TYPE my_varchar_table IS TABLE OF VARCHAR2(31) INDEX BY BINARY_INTEGER; " " " " PROCEDURE prc_test(v1 IN OUT my_numeric_table, v2 OUT my_varchar_table); " " " "END; " ); otl_cursor::direct_exec (db, "CREATE OR REPLACE PACKAGE BODY pkg_test IS " " " " PROCEDURE prc_test(v1 IN OUT my_numeric_table, v2 OUT my_varchar_table) " " IS " " BEGIN " " FOR i IN 1..v1.last LOOP " " v1(i) := v1(i)+100; " " END LOOP; " " v1(v1.last+1) := 0; " " v2(1) := 'Hello'; " " v2(2) := 'World'; " " v2(3) := '!!!'; " " END; " " " "END; " ); plsql(); } 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; }
T1_Len=4 T1[0]=101 T1[1]=102 T1[2]=NULL T1[3]=0 T2_Len=3 T2[0]=Hello T2[1]=World T2[2]=!!!
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