Which thread do the process first if we use multithreading ?

[cinjojose]

I have a common doubt. :confused:

If we use two synchronized threads simultaneously for reading and writing for a database, which thread will access first.

I mean,

We have two synchronized threads

Thread 1 for reading a database.
Thread 2 for writing to the same database.

If these two threads tries to do their process simultaneously which thread will access first the database (Read or write will happen first) ??

How to decide it ?? :confused:


Thanks a lot ..........

[r035198x]

What do you mean by "two synchronized threads"?
The general answer is you can't tell which one runs first.
Certainly not without knowing what your code looks like.

[cinjojose]

r035198x,
thanks for ur quick reply,
I don't have much experience in multi thread programing. One interviewer asked this question to me. And i was so confused and couldn't answer for this.

So the answer is, we can't tell which one access the DB first, the system decide it. Right ??

[r035198x]

Sort of, yes.

[cinjojose]

Thanks a lot