我正在使用OCCI连接 Oracle 和 C++。当我尝试访问表中的所有记录（有 10 条记录）时，以下代码片段仅显示表中的 4 条记录，并且程序以“分段错误”消息结束。
表员工
Name Null? Type
------------ -------- ---------------
ID NOT NULL NUMBER(6)
NAME NOT NULL VARCHAR2(30)
AGE NOT NULL NUMBER(3)
SALARY NOT NULL NUMBER(6)
VA NUMBER(8,2)
代码
#include<occi.h>
#include<stdio.h>
#include<iostream>
using namespace oracle::occi;
using namespace std;
int main ()
{
Environment *env;
Connection *conn;
string userName ;
string password ;
string database ;
userName="e224312";
password="ipgdMCicy";
database="oraconn";
cout << "OCCI Demo" << endl;
env=Environment::createEnvironment(Environment::DEFAULT);
conn=env->createConnection(userName,password,database);
cout << "OCCI Environment and Connection Created " << endl;
int idx=0;
int ch;
int c1;
string c2;
int c3;
Statement *stmt = conn->createStatement("SELECT * FROM employee");
cout << "Selecting Records from Table " << endl;
ResultSet *rs = stmt->executeQuery();
while(rs->next()){
c1 = rs->getInt(1);
c2 = rs->getString(2);
c3 = rs->getInt(3);
cout <<"ID :" << c1 << endl;
cout <<"Name :" << c2 << endl;
cout <<"Age :" << c3 << endl;
}
cout << "Terminating the Connection and The Environment" << endl;
env->terminateConnection(conn);
Environment::terminateEnvironment(env);
cout << "Normal End" << endl;
}
我正在使用 unix g++ 编译器。执行突然结束的原因是什么，我该如何纠正？
GDP 堆栈跟踪
~/project/test> gdb testgdb
GNU gdb Fedora (6.8-37.el5)
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i386-redhat-linux-gnu"...
(gdb) run
Starting program: /home/518377/project/test/testgdb
warning: .dynamic section for "/lib/libm.so.6" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libc.so.6" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/usr/lib/oracle/10.2.0.4/client/lib/libnnz10.so" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libdl.so.2" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libpthread.so.0" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libnsl.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
[Thread debugging using libthread_db enabled]
OCCI Demo
[New Thread 0xb7fe08e0 (LWP 32385)]
OCCI Environment and Connection Created
Selecting Records from Table
Emp Id :7
Emp Name :Arun
Age :23
Emp Id :8
Emp Name :Babu
Age :25
Emp Id :9
Emp Name :Catherine
Age :21
Emp Id :10
Emp Name :Dinesh
Age :20
Program received signal SIGSEGV, Segmentation fault.
0x001a09cc in free () from /lib/libc.so.6