Database :: majorVersionCount - Number of major versions
When any kind of managed versioning is enabled(versioningMode()), the function returns the number of major versions created for the database. When the versioning mode is not managed, the function returns 0.
When the database handle is not valid, the function throws an exception.
Return value: Number of items ( int32 )
The value contains the number of items to be processed or stored in a collection.