Cannot create memory optimized tables in a database on SQL Server 2014
SQL Server 2014 enables database administrators to create memory optimized table if memory-optmized database file group and filestream database file is created appropriately. Otherwise, SQL Server engine can rise exception "Cannot create memory optimized tables in a database that does not have an online and non-empty MEMORY_OPTIMIZED_DATA filegroup".
While I was trying to create memory-optimized table on SQL Server 2014 database, I got following error message:
Msg 41337, Level 16, State 0, Line 4
Cannot create memory optimized tables in a database that does not have an online and non-empty MEMORY_OPTIMIZED_DATA filegroup.
Cannot create memory optimized tables in a database that does not have an online and non-empty MEMORY_OPTIMIZED_DATA filegroup.
If you carefully check the above screenshot from database properties Filesgroups tab, you will notice that although we have defined a memory optimized data file group MemoryOptimizedFG, the number of FileStream files is 0.
This points database administrators the cause of the above error.
SQL Server database administrators have to create a FileStream Data file type database file before they create memory-optimized tables on SQL Server 2014 or on SQL Server 2016.
Add a new database file, which is in FileStream Data file type and choose the filegroup as the memory optimized file group you have created before.
SQL Server 2014 Database files for memory-optimized tables
Now you can execute following create memory optimized table SQL command
create table MemoryOptimizedTable (
c1 int not null primary key nonclustered,
c2 int
)
with (memory_optimized=on)