为什么在c++下编辑的proc一直报错？

hopkings

请教各位大虾，我在c++里建了一个类，里面嵌套着sql语句，为什么在main函数里调用这个类一直报错？
程序员代码如下：
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlca.h>

/*connect to the oracle database*/
class operateDB
{
public:
     operateDB();       
         ~operateDB();         
public:
         void connectDB();
         void selectDB();       
         void closeDB();       
};
operateDB:perateDB()
{
  
}
operateDB::~operateDB()
{

}
void operateDB::connectDB()
{  

  EXEC SQL BEGIN DECLARE SECTION;
  VARCHAR dbName[10];
  VARCHAR userName[10];
  VARCHAR password[10];

  EXEC SQL END DECLARE SECTION;
  
  strcpy(dbName.arr,"dbname";
  dbName.len=strlen(dbName.arr);
  strcpy(userName.arr,"usename";
  userName.len=strlen(userName.arr);
  strcpy(password.arr,"password";
  password.len=strlen(password.arr);
  EXEC SQL CONNECT:userName IDENTIFIED BY :password USING :dbName;
  printf("the database has been opened!";
}

/*select data from table*/
void operateDB::selectDB()
{  
  EXEC SQL BEGIN DECLARE SECTION;
  int id=-1;
  EXEC SQL END DECLARE SECTION;
  EXEC SQL SELECT stock_id INTO :id FROM S1040 WHERE ROWNUM=1;
  printf("this is a id:%dn",id);
}
void operateDB::closeDB()
{
  EXEC SQL COMMIT WORK RELEASE;
}

lenovo

你是不是没有用proc预编译器预编译呀？

hopkings

已经编译过了，在包含头文件的时候总是报错，而且编译后的文件的扩展名必须是.c除此之外，其他均报错