并行线程中的数据库访问，可行的选择？

I have the following situation

我有以下情况

main()
{

   hnd = CreateTHread( func1 );

   // Call fun2()

   wait(hnd);

   return ;

}


fun2()
{
  //Access database to perform some read operation on TAble A
}


func1()
{

//Access database to perform some read operation on TAble A
// Recursive operations
}
main(