Statistic	Scope	Description
Avail IO	Server	Shows the current number of available I/O control blocks.
Connection Count	Database	Shows the number of connections to this database.
Main Heap Bytes	Server	Shows the number of bytes used for global database server data structures.
Query: Plan cache pages	Connection and database	Shows the number of pages used to cache execution plans.
Query: Low memory strategies	Connection and database	Shows the number of times the database server changed its execution plan during execution because of low memory conditions.
Query: Rows materialized/sec	Connection and database	Shows the rate at which rows are written to work tables during query processing.
Requests: GET DATA/sec	Connection and database	Shows the rate at which a connection is issuing GET DATA requests.
Temporary Table Pages	Connection and database	Shows the number of pages in the temporary file used for temporary tables.
Version Store Pages	Database	Shows the number of pages of the temporary file currently being used for the row version store when snapshot isolation is enabled.