breaking infinite loop / proper loop setting

Question

In my application I have a mysql db table with many numerical records. I am doing some computations to these records. I would like to perform this computation in a loop with a ending condition. I was thinking about do-while loop, but I have scenario like this:

LOOP: {
    LOOP for computing euklidian distances between chosen records
    // HERE I WOULD LIKE TO CHCECK IF MY ENDING CONDITION IS TRUE. 
    // IF YES, WHOLE LOOP WILL END, AND IF NO, IT WILL CONTINUE
    LOOP for updating table records according to euklidian distances.
}

Can anyone help me please?

Answer 1

while (true)
{
  // some code

  if (condition)
    break; // HERE

  // some other code
}

Answer 2

I think you can solve that with a simple endless loop and break:

while (true)
{
    // do computation
    if (/* check condition */)
        break;
    // update DB
}

Then the loop will run until the condition is met. You may should also ensure that this will not turn into an endless loop...

Answer 3

"Foreach" loop may be better for you to use for computing for each record from the table.

foreach(var record in listOfRecords)
{
    //LOOP for computing euklidian distances between chosen records

    if(condition)
    {
        break;
    }

    //LOOP for updating table records according to euklidian distances.
}