sql server enterprise edition awareness

SQL SERVER ENTERPRISE AWARENESS

By Hamid J. FardMicrosoft Certified Master: SQL Server 2008

Microsoft Certified Solutions Master: Charter-Data PlatformCIW Database Design Specialist

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Agenda• What Matters To You?• Do You Believe in High End Hardware?• SQL Server Enterprise Edition (Internal Features)

• Advance Scan (Merry-Go-Round)• Fast Recovery• Prefetching• Single Scatter Scan• Automation Matching• Role Reversal• Partitioning• Data Compression• Deferred Transaction• Resource Governor• Vardecimal Storage Formatting

• Conclusion

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What Matters To You?

Manageability Performance Storage Space Disaster Recovery Cost

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Do You Believe in High End Hardware?

YES NO

Without High End Software, Your High End Hardware Is Worthless.

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SQL Server Internal Features vs. EditionsFeature Enterprise Standard

Advance Scan (Merry-Go-Round) Fast Recovery Prefetching Single Scatter Scan Automation Matching Role Reversal Partitioning Data Compression Deferred Transaction Resource Governor Vardecimal Storage Formatting

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Advance Scan (Marry-Go-Round)

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Table A

Query A

User A

User B

SQL Server Optimizer Engine

ReadQuery Buffer

Query Buffer

Read

Query A

Query BufferRead

Fast Recovery

Analysis Phase Redo Phase Undo Phase

Database Recovery Lifecycle

Database is AvailableBy Lock-Logging

Database is Under Recovery Uncommitted Transactions are Roll-Backed

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PrefetchingSelect E.ID, E.FN, E.LN, D.Designation From Employee E Inner Join Designation D On E.Designation_ID = D.ID

Designation

Employee

Read Synchronously

Read Asynchronously

Project Resultset

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Single Scatter Scan

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465

308

488

489

List o

f Lea

f Pag

es

Automation MatchingCreate Table dbo.Test (ID Bigint, Batch Char(10), BatchID As Cast(ID As Char) + Batch Persisted)

Select ID, Batch From dbo.Test Where Cast ( ID As Char ) + Batch = ‘1045623’

Select ID, Batch From dbo.Test Where BatchID = ‘1045623’

Converts To

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Role Reversal

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Build Input

Probe Input

Hash MatchResultset

Partitioning

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Dbo.Sales2016-2017Filegroup 1

Dbo.Sales2015-2016Filegroup 2

Dbo.Sales2014-2015Filegroup 3

Query

Dbo.Sales

Data Compression

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dbo.Sales1 Billion Rows186GB Data Size23,250,000,000,000 Data Pages

dbo.Sales1 Billion Rows108GB Data Size1,4557,760,000 Data Pages

Data Compression Up to 40%

Deferred Transaction

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 In Other Editions, A Corrupted Transaction Causes Database Startup To Fail

Analysis Phase Roll Forward Phase Roll Back Phase

Transaction Recovery Lifecycle

Transaction Uncommitted Transaction Not Rolled BackDue to Corrupted Transaction Log I/O

Resource Governor

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Memory: 64GBProcessor: 8 Logical Processor

DB_AMax Memory: 12GBMax Processor: 2 Logical ProcessorsMax IOPS: 500

DB_BMax Memory: 24GBMax Processor: 4 Logical ProcessorsMax IOPS: 2000

App A

App B

Vardecimal Storage Formatting

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ID Full Name Savings1 John Smith 50,0002 Bill Gates 97,000,000,

0003 Kevin Wood 500

20 Bytes20 Bytes20 Bytes

ID Full Name Savings1 John Smith 50,0002 Bill Gates 97,000,000,

0003 Kevin Wood 500

5 Bytes20 Bytes5 Bytes

Conclusion

If SQL Server Enterprise is Expensive, What About Other Editions!

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