SSIS (SQL Server Integration Services)
SSIS are 2 types
ETL Operations (Extracting Transform Load)
E- Extracting –> Getting data
T- Transform –> performing intermediate operations
L- Load –> Load to destination
DB <-> DB
DB <-> File
File <-> File
- Taking backup of a data base
- Sharing data base
- History clean up
- Transferring data base/ log/error msg etc…
Databases: Oracle, SQL server, Tara data etc..
Files: XML, Excel, Flat file. Raw file etc…
There are 4 important components in SSIS ARCHITECTURE
- Object model
- SSIS runtime
- Integration services service
- Data flow task
SSIS Designer: It’s a native tool to create ‘IS’ packages and it components.
Object model: It is an application programming interface which connects and understands custom tools and components.
SSIS runtime: This is ‘CLR’ which saves the layout of the packages (.dtx) runs the packages and manages the package components.
Integration services service: This component helps us to store the packages in SQL server_database (MSDB), managing the packages and running the packages.
DATA FLOW TASK:
To move the data between source to destination and perform different operations, data flow task is required.
It uses various “Inline buffers” while processing the data.
It uses a “data pipe line engine” to move the data from source to destination and to manager buffers.
Package and its Components
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Package is on important component in SSIS Architecture.
- It can be constructed through custom tools (or) native tools.
- It performs all operations such as “ETL” and administrative task.
- It uses various other components as part of its processing. Ex: Logging, event handling, package configuration etc.
- Control flow task is mandatory for every package.
- To move the data from source to destination data flow task requires.
ENGINES IN SSIS
–> SQL engine (generates plan to execute package)
–> Data pipe line engine (only inside data flow task)
Different between DTS and SSIS
|SQL server 7.0 introduced available 2000 on words.||SQL server 2005 on words available.|
|Designed for ETS [Extract Transform Sources].||Designed for ETL [Extract Transform Load].|
|It consists of single pane (i.e., pane means screen or frame) for all operation. It has data transformations work flow etc.||It consists of multiple pane for multiple operations. It has
|Data transformations available.||Data flow task introduced and transformations embedded.|
|No DSV [Data Source View] No connection manage, No event handling, No looping through folders, files.||Available [introduced].|
|Message boxes displayed in active –X script.||Message boxes displayed in script task.|
|Less transformation.||More transformation.|
|Partial BI support (less)||Full support to BI.|
|No deployment wizard||Deployment wizards are there.|
|Saved in||Saved in local file system. Deployed to SQL server.|
|a) Enterprise manager (SQL server)|
|b) File system (structured storage file )
2008 to 2008R2
- 2008 R2 is the “second release” of 2008.
- Code name “KILIMANJARO”.
- Released in middle of 2009.
–> Max 25 instances in CMS.
–> Max 256 logical processors in CMS.
–> Multi server administrator.
–> MDS [Master Data Services].
–> “Data-tier” applications
–> POWPIVOT for virtualization
–> Full support to
- Ms-excel 2010.
- Ms visual studio 2010.
- Full support to SharePoint server
–> Data compression with UCS-2 code support.
–> Available edition
i) Data centre edition
- Huge data storage
- Recommended for OLTP, ODS storages.
ii) Parallel DWH edition
- Huge data storage
- Recommended for BI applications.
2008R2 to 2011:
èIts code name “DENAIL”
èMulti sun-net failover clustering introduced.
Creating sequence introduced.
Syntax: create sequence START WITH increment by . Eg: create sequence x start with 1 increment by 1. Insert into test values (Next value for x, ”vinay” –> emp ID or username)
Paging implement in 2011:
- It display the required rows in page wise.
- Full text search of index introduced.
- The usage of excel power point pivot enhanced so that reporting models are created easily.
- Analysis service “BISM” (Business Intelligence Semantic Model) introduced. It is a 3-layer model.
- WEB based visualization (project crescendo introduced) it is a code name for representing application for better visualizations.
List of Related Microsoft Certification Courses:
|SCCM||SQL Server DBA|
|Team Foundation Server||BizTalk Server Administrator|