Creating Database Snapshot

First of all you should ensure that you have sufficient space on your disk drive to hold the database snapshot. You can create a database snapshot only the help of TSQL command. The SQL Server Management Studio doesn’t provide the facility to create the database snapshot.
Here I have posted a sample query to create the database snapshot.

CREATE DATABASE database_snapshot_name 
    ON
    (
        NAME = logical_file_name,
        FILENAME = 'os_file_name' 
    ) [ ,...n ]
    AS SNAPSHOT OF source_database_name
[;]

There are several benefits of a database snapshot in SQL Server. Here I have discussed some of them:
1. The database snapshots can be used in reporting services.
2. Works as a safeguards against administrative error.
3. Also can be used in managing the test database.
4. Can be used as mirror database that you can use for maintaining for availability purposes.

Some limitations are like:
1. Snapshots are read-only.
2. specifications of the database snapshot files are not changeable.
3. You cannot attach or detach database snapshots.
To know more please go this one it may be helpful to you https://msdn.microsoft.com/en-us/library/ms175158.aspx