ms sql in linux
 

is it possible to run ms sql in linux?

Microsoft's sql ?

not likely.

Why can you not use MySQL or MariaDB ?

Have you tried to find the answer yourself? What steps did you take? Have a look here. That should answer your question. It wasn't hard to find.
jdk

is there any disadvantage of running ms sql in linux?can u briefly compare ms sql with my sql ,oracle?

What steps have you taken to answer this question? What type of database are you trying to build? Why do you need a "brief" answer?
jdk

Infinitely many things are possible with infinite amounts of effort. Unless MS does something to make this easier (or at least somewhat feasible) this will probably stay in the category of things that are not worth the effort.

It is unclear what problem the answer to this question could solve, apart from 'Is there a work around for annamalai's unwillingness to use search engine technology?'. That might also be not worth the effort, given what is likely to happen next.

Maybe with wine.
A native program like mysql is likely to perform better than hacking/fooling the software into running on a non supported system.

I'm curious as to why mssql since mysql is much more popular ?

You can't run MS-SQL natively on Linux.
You can try to work around with Wine (but I doubt it'll work) or use a VM technology.
In the long run, you're much better off with a SQL DB that does run natively, of which there are several to choose from.