This document provides information about various SQL Server features and editions. It includes a list of features available in each edition like row-level security, dynamic data masking, and in-memory OLTP. It also includes memory limits, MAXDOP settings, and pushdown capabilities for different editions. The document discusses lightweight query profiling improvements in SQL Server 2016 SP1 and provides details on predicate pushdown indicators in showplans.

1. bobward@microsoft.com
https://blogs.msdn.microsoft.com/sql_server_team

4. SQL Server
Engine
286 System
Catalog Views
232 Dynamic
Management
Views
(Functions)
~1300
Extended
Events
2100
Performance
Monitor
Counters
Extensive
SHOWPLAN
statistics and
warnings
ERRORLOG,
Event Log,
System Health
Session

5. backup_restore_progress_trace event
“database recovery progress” events
dm_exec_input_buffer
ALTER
DATABASE SCOPED
CONFIGRUATION
list

8. columnstore
In-Memory
OLTP
Always
Encrypted

9. Feature
RTM SP1
Standard Web Express Standard Web Express
Row-level security Yes No No Yes Yes Yes
Dynamic Data Masking Yes No No Yes Yes Yes
Change data capture* No No No Yes Yes No*
Database snapshot No No No Yes Yes Yes
Columnstore No No No Yes Yes Yes
Partitioning No No No Yes Yes Yes
Compression No No No Yes Yes Yes
In Memory OLTP No No No Yes Yes Yes
Always Encrypted No No No Yes Yes Yes
PolyBase No No No Yes Yes Yes
Fine grained auditing No No No Yes Yes Yes
Multiple filestream containers No No No Yes Yes Yes
* Requires SQL Server Agent which is not part of SQL Server Express Editions.

10. SQL Server 2016 SP1 Edition Max Buffer pool size per instance In-Memory OLTP quota (per DB)
Express 1410MB 352MB
Web 64GB 16GB
Standard 128GB 32GB
Developer Unlimited (OS Max of 24TB) Unlimited (OS Max of 24TB)
Enterprise Unlimited (OS Max of 24 TB) Unlimited (OS Max of 24TB)
SQL Server 2016 SP1
Edition
Columnstore memory limit (per
instance)
MAXDOP
Aggregate
pushdown
Filter
pushdown
SIMD support
Express 256MB 1 N N N
Web 16GB 1 N N N
Standard 32GB 2 N N N
Developer Unlimited (OS Max of 24TB) Unlimited Y Y Y
Enterprise Unlimited (OS Max of 24TB) Unlimited Y Y Y
In-Memory OLTP
Columnstore

11. Understanding the Memory limits for non-EE
editions of SQL Server
Edition limits only impact
buffer pool memory

12. Advanced R integration and Standalone R Server
Polybase head node
Master Data Services and Data Quality Services
Resource Governor and IO Resource Governor
Partition Table Parallelism
Full NUMA capabilities
Star join query optimizations
Parallel query processing on partitioned tables and indexes
Scalability and Performance in Enterprise Edition
Global batch aggregation
Distributed partitioned views
Online index operations
Auto use of indexed views
Parallel CHECKDB
Advanced scanning for disk-based tables

13. I found the query with
the problem, now
what do I do?
I have “runaway”
queries
Why isn’t this seek
working?

15. Regular Query
Profiling
Full runtime statistics for a query plan
Most expensive overhead
Can be enabled per session or global
Consume data from live queries or post
execution
Lightweight Query
Profiling
Limited runtime statistics in query plan
Least expensive overhead
Only enabled globally only
Consume data from live queries or post
execution
We optimized this even further in SQL Server
2016 SP1

16. SET “option” output
XEvent
• query_post_execution_showplan
• query_thread_profile
DMVs
• dm_exec_query_profiles
• dm_exec_query_statistics_xml
SSMS
• Include Actual Plan
• Include Live Statistics
• Activity Monitor

17. XEvent
• query_thread_profile
DMVs
• dm_exec_query_profiles
• dm_exec_query_statistics_xml
SSMS
• Activity Monitor
• Include Live Statistics (through AM)
• SET STATISTICS XML (or Include
Actual Plan) still uses regular
query profiling
• query_post_execution_showplan
still uses regular query profiling
• query_thread_profile event is
Debug Channel and does not
include query plan

18. Overhead percent (up to)
Infra Type
no active
xEvents
Active xEvent
query_post_execution_showplan
Regular (Legacy) 75.5 93.17
Lightweight in SQL Server 2014
SP2/2016
3.5 62.02
Lightweight in SQL Server 2016 SP1 2 14.3

20. • Information about parameters data type
• CPU and execution elapsed time for entire query (root node)
• Top waits (using sys.dm_exec_session_wait_stats)

21. • Per operator performance
statistics for node and
threads
• Showplan extended to
include
RunTimeCountersPerThread
• Node costs for parent and
children:
• Cumulative values for Row mode operators
• Singleton values for Batch mode operators
Detailed runtime stats we now provide
Runtime Info Up to SQL 2016 SQL 2016 / SQL 2014 SP2 SQL 2016 SP1
ActualRows X X X
ActualRowsRead X X
Batches X X
ActualEndOfScans X X X
ActualExecutions X X X
ActualExecutionMode X X
ActualElapsedms X X
ActualCPUms X X
ActualScans X X
ActualLogicalReads X X
ActualPhysicalReads X X
ActualReadAheads X X
ActualLobLogicalReads X X
ActualLobPhysicalReads X X
ActualLobReadAheads X X
InputMemoryGrant X
OutputMemoryGrant X
UsedMemoryGrant X

25. Searching with pushdown
SELECT [ProductID]
FROM [Sales].[SalesOrderDetail]
WHERE [ModifiedDate] BETWEEN '2011-01-01' AND '2012-01-01'
AND [OrderQty] >= 10
ModifiedDate ProductID StoreID OrderQty SalesAmount
2010-12-31 106 01 12 30
2011-01-07 103 04 1 17
2011-01-07 109 04 7 20
2011-02-12 103 03 5 40
2011-03-08 106 05 7 25
2011-04-16 106 02 10 40
2011-07-20 102 02 12 50
2011-10-21 106 03 16 55
2011-12-15 103 03 20 55
(…) (…) (…) (…) (…)
2012-01-01 109 01 11 16
2012-01-11 102 05 5 10
Sales.SalesOrderDetail
ModifiedDate ProductID StoreID OrderQty SalesAmount
2010-12-31 106 01 12 30
2011-01-07 103 04 1 17
2011-01-07 109 04 7 20
2011-02-12 103 03 5 40
2011-03-08 106 05 7 25
2011-04-16 106 02 10 40
2011-07-20 102 02 12 50
2011-10-21 106 03 16 55
2011-12-15 103 03 20 55
(…) (…) (…) (…) (…)
2012-01-01 109 01 11 16
2012-01-11 102 05 5 10
ModifiedDate ProductID StoreID OrderQty SalesAmount
2011-04-16 106 02 10 40
2011-07-20 102 02 12 50
2011-10-21 106 03 16 55
2011-12-15 103 03 20 55
(…) (…) (…) (…) (…)
2012-01-01 109 01 11 16
Result Set
Actual
Rows

26. • In SQL Server 2016, 2014 SP2
and 2012 SP3
• New Showplan attribute
ActualRowsRead:
• This attribute provides information about how many
rows were read by the operator before the residual
predicate was applied.
• You get this information from Actual Execution Plan.
• sys.dm_exec_query_profiles DMV exposes new
column actual_read_row_count.
Predicate Pushdown in Showplan

27. • In SQL Server 2016 SP1
• New Showplan attribute
EstimatedRowsRead:
• This attribute provides information about how
many rows are estimated to be read by the
operator before the residual predicate is applied.
• You get this information from Estimated Execution
Plan.
• sys.dm_exec_query_profiles DMV exposes new
column estimated_read_row_count.
Predicate Pushdown in Showplan

29. SELECT AddressID
FROM Person.[Address]
WHERE City = N'Ballard'
AND [PostalCode] = '98107'
OPTION (QUERYTRACEON 9481)
SELECT AddressID
FROM Person.[Address]
WHERE City = N'Ballard'
AND [PostalCode] = '98107'
OPTION (USE HINT('FORCE_LEGACY_CARDINALITY_ESTIMATION'))

30. USE HINT TF DB Option
DISABLE_OPTIMIZED_NESTED_LOOP 2340
FORCE_LEGACY_CARDINALITY_ESTIMATION 9481 Yes
ENABLE_QUERY_OPTIMIZER_HOTFIXES 4199 Yes
DISABLE_PARAMETER_SNIFFING 4136 Yes
ASSUME_MIN_SELECTIVITY_FOR_FILTER_ESTIMATES
4137 for OldCE
9471 for NewCE
DISABLE_OPTIMIZER_ROWGOAL 4138
ENABLE_HIST_AMENDMENT_FOR_ASC_KEYS 4139
ASSUME_JOIN_PREDICATE_DEPENDS_ON_FILTERS 9476 on NewCE
FORCE_DEFAULT_CARDINALITY_ESTIMATION 2312

32. •KB 3190548CREATE OR ALTER statement
•KB 3191273 and 3191273Self-Referential Integrity operator
•KB 3170114dm_db_incremental_stats_properties
•3191296Track TLS protocol with trace xEvent

36. Database Number of Objects SSMS sp_clonedatabase DBCC CLONEDATABASE
Large Bank DB 20453 Scripting error 378 seconds* 33 seconds (11x)
Internal MS DB 80819 OOM 1200 seconds* 24 seconds (50x)
ERP DB 1008002 OOM 7200 seconds* 122 seconds (60x)
3177838
Blog post on
security
Blog post on
columnstore
Not for
production

37. 1 = Conventional Memory Model
2 = Lock Pages in Memory
3 = Large Pages in Memory

38. here

40. recovery_unit_harden_log_timestamps
log_block_pushed_to_logpool
hadr_logblock_compression
hadr_log_block_decompression
hadr_transport_receive_log_block_message
hadr_log_block_group_commit
hadr_capture_filestream_wait
hadr_lsn_send_complete
hadr_receive_harden_lsn_message
KB
3173156

42. KB
3170123

43. KB
3173157

44. Query Store Memory Leak
AV for spatial query exec or XML plan
Tempdb sysobjvalues latch increase
In-Memory OLTP checkpoint files

46. Adaptive QP
Automatic Query
Plan Tuning
Ensuring our
Diagnostics on
Linux are best in
class
New Query Store
Reports in SSMS
v17.0

47. SQL Server Tiger Team Blog
Tiger Toolbox GitHub
SQL Server Release Blog
BP Check
SQL Server Standards Support
Trace Flags
SQL Server Support lifecycle
SQL Server Updates
Twitter