1

By Bassam Gamal

www.getgroup.com
© Copyright by GET Group 2010

Integration Service V.S Broker Service
•A problem scenario.
•Broker Service.
•Objects.
•Solution “Asynchronous Triggers”.
•Same Instance and Different Instance.
...
3

Problem Scenario

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•Transfer data between two databases.
•In real time.
...
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4

Broker Service
5

Objects

Bind
contracts
to queues
to send or
receive
messages

•Name
and
validation
type.
•On both
sides

Used
messages...
6

Asynchronous Triggers

Table Locking and
overhead.

Broker Service
Functionality

•Triggers combined
with SSBS forms
as...
7

Same Instance

Insertion
Trigger
Activated
Some data
entry

Q

Q

Destination

SPInsert

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8

Different Instances
Route
•Other instance Service
•Other instance Address
•Other instance SQL UID
EndPoint 1

EndPoint ...
9

1. Two databases on same
instance.
2. Two databases on different
instances.

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10

Integration Service
11

Components
To store data and SQL statements used
within package flow.
Place where you design your Control flow of data...
12

Incremental Data Extraction
•How to get updated or inserted data without triggers?
•ID.
•Last Modification Date.

•Tim...
Example

Data
Flow
Task
OLE DB
Source

Data Flow

To
aggregate
used
value

Multicast selected data
to many destination

OL...
14

• After Implementing the
package, it’s useless if it
is not self executing.
• How can we achieve
this?

SQL
Server
Age...
15

1. Incremental Data Extraction using ID, Timestamp.

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Demos.
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16

V.S
Broker’s Conclusion

17

Advantages

Messages are easily filtered and managed through Messages Type and
Contracts.
System ...
18

Broker’s Conclusion Cont’d
Disadvantages
Complex design in tightly coupled databases.

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Integration Service
Conclusion

19

Advantages
Can be used like Replication

No triggers required
Packages can be schedule...
20

Integration Service
Conclusion Cont’d
Notes

Can't track deleted records
CDC solves it.
Can't track updated fields onl...
21

Broker Service

Integration Service

Using asynchronous trigger
data is sent instantly

Packages could be scheduled
to...
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22
23

References
Pro SQL Server 2008 Service Broker Book.
Using Service Broker instead of Replication.
Service Broker Troubl...
Thanks for
listening
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24
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SSIS and SSBS

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Brief introduction about SQL Server Integration Service and Broker Service and their usage in Incremental Data Extraction.

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SSIS and SSBS

  1. 1. 1 By Bassam Gamal www.getgroup.com © Copyright by GET Group 2010 Integration Service V.S Broker Service
  2. 2. •A problem scenario. •Broker Service. •Objects. •Solution “Asynchronous Triggers”. •Same Instance and Different Instance. •Demos •Integration Service. •Components. •Solution “Incremental Data Extraction”. •Scheduling Via SQL Agent. •Demos •SSBS V.S SSIS. •References. •Questions. 2 www.getgroup.com © Copyright by GET Group 2010 Agenda
  3. 3. 3 Problem Scenario www.getgroup.com © Copyright by GET Group 2010 •Transfer data between two databases. •In real time. •With little overhead. •With data processing.
  4. 4. www.getgroup.com © Copyright by GET Group 2010 4 Broker Service
  5. 5. 5 Objects Bind contracts to queues to send or receive messages •Name and validation type. •On both sides Used messages and by whom. Where messages arrive and processed via activation procedure Address of the other database www.getgroup.com © Copyright by GET Group 2010 Message Services Routes
  6. 6. 6 Asynchronous Triggers Table Locking and overhead. Broker Service Functionality •Triggers combined with SSBS forms asynchronous trigger. Can’t get inserted or •When fired sends updated data. inserted, updated data. www.getgroup.com © Copyright by GET Group 2010 Trigger Asynchronous Triggers
  7. 7. 7 Same Instance Insertion Trigger Activated Some data entry Q Q Destination SPInsert www.getgroup.com © Copyright by GET Group 2010 Source Activation Stored Procedure associated Instance with Q runs which Sends inserted data Receives message and process its data.
  8. 8. 8 Different Instances Route •Other instance Service •Other instance Address •Other instance SQL UID EndPoint 1 EndPoint 2 Endpoint Opens a port Instance Certificate 1 Source Login 1 Route 1 User 1 Certificate 2 •Create Endpoint authorized with a certificate. •Grant User to login on this endpoint. Destination Login 2 User 2 Route 2 www.getgroup.com © Copyright by GET Group 2010 Instance
  9. 9. 9 1. Two databases on same instance. 2. Two databases on different instances. www.getgroup.com © Copyright by GET Group 2010 Demos.
  10. 10. www.getgroup.com © Copyright by GET Group 2010 10 Integration Service
  11. 11. 11 Components To store data and SQL statements used within package flow. Place where you design your Control flow of data Place where you perform tasks on your data flow Place where you explore your packages contents from variables, components, events …. Toolboxes contains user controls used in drag and drop wise to implement the package. www.getgroup.com © Copyright by GET Group 2010 Place where you handle some events
  12. 12. 12 Incremental Data Extraction •How to get updated or inserted data without triggers? •ID. •Last Modification Date. •Timestamp or Rowversion. www.getgroup.com © Copyright by GET Group 2010 •Changed Data Capture “CDC”.
  13. 13. Example Data Flow Task OLE DB Source Data Flow To aggregate used value Multicast selected data to many destination OLE DB destination Updates used value www.getgroup.com © Copyright by GET Group 2010 Control Flow 13
  14. 14. 14 • After Implementing the package, it’s useless if it is not self executing. • How can we achieve this? SQL Server Agent www.getgroup.com © Copyright by GET Group 2010 Scheduling
  15. 15. 15 1. Incremental Data Extraction using ID, Timestamp. www.getgroup.com © Copyright by GET Group 2010 Demos.
  16. 16. www.getgroup.com © Copyright by GET Group 2010 16 V.S
  17. 17. Broker’s Conclusion 17 Advantages Messages are easily filtered and managed through Messages Type and Contracts. System can be well managed using Users, Logins and Permissions. Asynchronous trigger is a new concept offered by SSBS to avoid locking of tables and to save time, increase efficiency and to replace replication. If there is heavy load on databases "Queues receives a lot of messages", up to 7 instances from activation procedure could handle the messages. Very good for loose coupled systems when parallelization is applicable. www.getgroup.com © Copyright by GET Group 2010 SSBS guarantees arrival of messages in the same order in case of tables locking, databases offline and Server failures. Messages could be sent between same or different instances and databases. Messages can be encrypted for high security.
  18. 18. 18 Broker’s Conclusion Cont’d Disadvantages Complex design in tightly coupled databases. www.getgroup.com © Copyright by GET Group 2010 If transaction that receives messages from the queue rolled back five times queue is turned off "Poison Messages”. Need a very maintainable, strong and well planned design before implementation. Needs implementation of some light load triggers.
  19. 19. Integration Service Conclusion 19 Advantages Can be used like Replication No triggers required Packages can be scheduled using SQL Agent to run in defined or every portion of time. SSIS can perform ETL operations between two different data sources type www.getgroup.com © Copyright by GET Group 2010 Can be used in concurrent environment with rowversion data type for incremental data extraction SSIS package design can handle transfer data loss from tables locking and Server failures.
  20. 20. 20 Integration Service Conclusion Cont’d Notes Can't track deleted records CDC solves it. Can't track updated fields only Important fields could be chose full records to be outputted only. Better than date time as it Addition of 8 Bytes field to updates itself so less Write on tracked tables DB. Minimum time to run the package is every 10 Seconds. www.getgroup.com © Copyright by GET Group 2010 Disadvantages
  21. 21. 21 Broker Service Integration Service Using asynchronous trigger data is sent instantly Packages could be scheduled to run each 10 seconds Design Simple in loosely coupled systems and complex in tightly coupled. Very simple when big task is divided into small ones Errors Not easy to trace or troubleshoot at implementation ,but easy at execution Easy at implementation, hard at execution. Test Cases •Tables locked •Server failures Messages arrival in the same Package design can order are guaranteed even guarantee the arrival of data at errors of execution ,but errors at execution leads to data loss. Performance High performance Takes time with large amount of data www.getgroup.com © Copyright by GET Group 2010 Real Time
  22. 22. www.getgroup.com © Copyright by GET Group 2010 22
  23. 23. 23 References Pro SQL Server 2008 Service Broker Book. Using Service Broker instead of Replication. Service Broker Troubleshooting. Microsoft SQL Server 2008 Integration Services Problem, Design, Solution Book. 5. SSIS tutorial and example. 6. Using SQL 2008 CDC. 7. Introduction to CDC. 8. Merge Join vs. Lookup vs. Custom Script. 9. Timestamp (rowversion) Data Type. 10. SQL Server Integration Services Package Scheduling with SQL Server Agent. 11. SQL Configuration Functions. www.getgroup.com © Copyright by GET Group 2010 1. 2. 3. 4.
  24. 24. Thanks for listening www.getgroup.com © Copyright by GET Group 2010 24

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