LocalDBGetVersions Function
Applies to: 
SQL Server
Returns all SQL Server Express LocalDB versions available on the computer.
Header file: msoledbsql.h
Syntax
#define MAX_LOCALDB_VERSION_LENGTH 43typedef WCHAR TLocalDBVersion[MAX_LOCALDB_VERSION_LENGTH + 1];typedef TLocalDBVersion* PTLocalDBVersion;HRESULT LocalDBGetVersions( PTLocalDBVersion pVersion, LPDWORD lpdwNumberOfVersions);
Parameters
pVersionNames
[Output] Contains names of the LocalDB versions that are available on the user's workstation.
lpdwNumberOfVersions
[Input/Output] On input holds the number of slots for versions in the pVersionNames buffer.
On output, holds the number of existing LocalDB versions.
Returns
S_OK
The function succeeded.
LOCALDB_ERROR_NOT_INSTALLED
SQL Server Express LocalDB is not installed on the computer.
LOCALDB_ERROR_INVALID_PARAMETER
One or more specified input parameters are invalid.
LOCALDB_ERROR_INSUFFICIENT_BUFFER
The input buffer is too short, and truncation was not requested.
LOCALDB_ERROR_INTERNAL_ERROR
An unexpected error occurred. See the event log for details.
Remarks
For a code sample that uses LocalDB API, see SQL Server Express LocalDB Reference.