Using UPDATE in Oracle DB OCCI interface

Question

I use oracle occi api to update data, code:

  Environment * env = Environment::createEnvironment();
    Connection * con = env->createConnection("nm_web","nm_web99","192.168.26.42/orcl");
    Statement *stmt;
    string sqlStmt = 
      "update tb_yctp_daq_record set deal_status=1";
    try{
        stmt = con->createStatement(sqlStmt);
        stmt->execute();
    }catch(SQLException ex)
    {
        cout<<"Exception thrown for updateRow"<<endl;
        cout<<"Error number: "<<  ex.getErrorCode() << endl;
        cout<<ex.getMessage() << endl;
    }
    con->commit();
    con->terminateStatement (stmt);
   
    Environment::terminateEnvironment(env);
    return true;

but this code stuck in " stmt = con->createStatement(sqlStmt);"

Answer 1

I just not commit update operation in PLSQL tools, this could lead lock this table.