OTL 4.0, Example 232 (otl_stream::flush() and batch error mode, Oracle 8, 8i, 9i, 10g, 11g, 12c)

Example 232 (otl_stream::flush() and batch error mode, Oracle 8, 8i, 9i, 10g, 11g, 12c)

This example demonstrates a simple INSERT, SELECT and the use of the otl_stream::flush() function with for Oracle 8/8i/9i/10g/11g/12c.

Source Code

#include <iostream>
using namespace std;

#include <stdio.h>
#define OTL_ORA8 // Compile OTL 4.0/OCI8
//#define OTL_ORA8I // Compile OTL 4.0/OCI8i
// #define OTL_ORA9I // Compile OTL 4.0/OCI9i/OCI9iR2
// #define OTL_ORA10G // Compile OTL 4.0/OCI10G
// #define OTL_ORA10G_R2 // Compile OTL 4.0/OCI10G Release 2
// #define OTL_ORA11G // Compile OTL 4.0/OCI11G
// #define OTL_ORA11G_R2 // Compile OTL 4.0/OCI11G Release 2
// #define OTL_ORA12C // Compile OTL 4.0/OCI12C
#include <otlv4.h> // include the OTL 4.0 header file

otl_connect db; // connect object

void insert()
// insert rows into table

 otl_stream o(20, // make the buffer size larger than the actual 
                  // row set to inserted, so that the stream will not
                  // flush the buffer automatically
              "insert into test_tab values(:f1<int>,:f2<char[31]>)", 
                 // SQL statement
              db // connect object
             );

 o.set_commit(0); // set stream's auto-commit to OFF.
 o.set_batch_error_mode(true); // set stream's batch error mode to ON.

 try{
o<<1<<"Line1"; // Enter one row into the stream
o<<1<<"Line1"; // Enter the same data into the stream
// and cause a "duplicate key" error.
o<<2<<"Line2"; // Enter one row into the stream
o<<3<<"Line3"; // Enter one row into the stream
o<<4<<"Line4"; // Enter one row into the stream
o<<2000<<"Line2000"; // Enter an out-of-range f1 into the stream
o<<otl_null()<<"LineNull"; // Enter a NULL f1 into the stream
  o.flush();
 }catch(otl_exception& p){
if(p.code==24381){
// ORA-24831, error(s) in array DML
otl_exception error;
int total_errors=o.get_number_of_errors_in_batch();
cout<<"TOTAL_ERRORS="<<total_errors<<endl;
int dml_row_offset;
for(int i=0;i<total_errors;++i){
o.get_error(i,dml_row_offset,error);
cout<<"I="<<i<<", ROW_OFFSET="<<dml_row_offset
<<", CODE="<<error.code<<", MSG="<<error.msg
<<endl;
}
}
 }

 db.commit(); // commit transaction

}

void select()

 otl_stream i(10, // buffer size
              "select * from test_tab",
                 // SELECT statement
              db // connect object
             ); 
   // create select stream
 
 int f1;
 char f2[31];

 while(!i.eof()){ // while not end-of-data
  i>>f1>>f2;
  cout<<"f1="<<f1<<", f2="<<f2<<endl;
 }

}

int main()
{
 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 not null, f2 varchar2(30), "
"constraint check1 check(f1 between 1 and 1000))"
); // create table

otl_cursor::direct_exec
(
db,
"create unique index ind001 on test_tab(f1)"
); // create unique index


  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;

}

Output

TOTAL_ERRORS=3
I=0, ROW_OFFSET=5, CODE=2290, MSG=ORA-02290: check constraint (SYSTEM.CHECK1) violated

I=1, ROW_OFFSET=6, CODE=1400, MSG=ORA-01400: cannot insert NULL into ("SYSTEM"."TEST_TAB"."F1")

I=2, ROW_OFFSET=1, CODE=1, MSG=ORA-00001: unique constraint (SYSTEM.IND001) violated

f1=1, f2=Line1
f1=2, f2=Line2
f1=3, f2=Line3
f1=4, f2=Line4


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Copyright 1996-2017, Sergei Kuchin, email: skuchin@gmail.com, skuchin@gmail.com

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