SSIS Tutorial For Beginners

What is SSIS?

Below are three important projects that help to complete the business intelligence course task.

• SSIS: SQL Server Integration Services
• SSAS: SQL Server Analysis Services
• SSRS: SQL Server Reporting Services

This SSIS Tutorial blog will mainly focus on various aspects of SSIS. You will learn – what is SSIS, its components, features, functions, and several frequently asked questions.

The SSIS full form is SQL Server Integration Services, it is basically a component of Microsoft SQL Server database software that is used to perform data migration at scale. As a platform, SSIS enhances data integration and workflow applications.

SQL Server Integration Services is a platform for developing enterprise-level data integration and data transformation solutions. Use Integration Services to manage databases, copy files and download data, load data warehouses, cleanse and analyze data, and manage SQL Server objects.

Integrating Services extracts and transforms data from a wide range of sources, such as XML files, flat files, and relational data sources, and loads that data onto one or more destinations.

There are many tasks and transformations built into Integration Services for building packages, and you can manage them in the Integration Services Catalog Database.

Watch this SSIS Tutorial for beginners video-

What are the SSIS components?

Let’s move ahead in this SSIS tutorial and learn what the components of SSIS are:

• Control Flow (for storing containers and tasks)
• Data Flow (Source, destination, and transformations)
• Event Handler (for managing messages and e-mails)
• Package Explorer (for offering an all-in-one view)
• Parameters (for fostering user interaction)

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We can use SSIS to implement ETL, or extract, transform, and load data into a Data Warehouse.

The ETL acronym stands for Extraction, Transformation, and Loading. This process involves extracting data, transforming it, and loading it to the final repository. ETL is the process of loading data into the warehouse from the source system. In this section, we’ll describe the ETL process step-by-step.

Extraction (E):  Collection of data from different sources.

Transformation (T):  A different form of data obtained from different sources and converted according to business needs.

Loading  (L):  Data warehouse contains the loaded data.

Features of SSIS

Next in the SSIS tutorial, have a look at key features of SSIS – 

• Data cleansing and profiling for a better quality of data
• Smooth data integration from disparate data sources
• Seamless integration with other components of Microsoft SQL products
• Enriched studio environment and graphical tools/wizards
• Workflow functionalities like file transfer protocol
• APIs for SSIS object modeling
• Efficient implementation of high-speed data connectivity/integration
• Packaged data source connectors
• Organized data mining query and lookup transformation
• Master and metadata management

Key Functions of SSIS

Now, let’s understand the key functionalities of SSIS.

1. Studio environments
2. Packages
3. Expressions
4. Event handler

1. Studio Environments

SQL Server Integration Services included two studios

SSDT:  SQL  Server Data Tools

It helps to develop the integration service  packages  and We can perform the following  jobs  in SSDT

• Copy basic package data from source to destination
• Complete flow control and data flow are included when to create the packages
• We can update the properties of packages while run time
• Deployment creating
• Save package copies to SQL server msdb

Step 1: Open the SQL Server data tools.
Step 2: Click on File –> New –> Project

SSMS: SQL Server Management Studio

It helps to manage packages in a production environment and we can perform the following jobs in SSMS.

• Folder creation to organize the packages
• With the help of Execute package utility, we can run the packages and store them on the local computer
• Generate a command line when we run the execute package utility
• Storing and fetching packages to and from the SQL Server msdb

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2. Packages

An SSIS package is a collection of Control flow and data flow, control flow includes the two things such as task and data flow task and Data flow includes source, transformation, and destination.

3. Expressions
SSIS Expression is a combination of literals, identifiers, and operators
Literals: An interpreted variable is known as a literal, different type of literals are

• Numeric literal: expression supports integral literal and nonintegral literal
• String literal: It has zero or more characters enclosed with the quotation and also it always followed by the \ symbol.
• Boolean literal: It has only two options true or false.

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4. Event Handling
Creating an event handler is similar to building packages and SSIS event handlers are

OnError,OnExecStatusChanged,OnInformation,OnPostExecute,OnPostValidate,OnPreExecute,OnProgress,OnTaskFailed,OnVariableValueChanged,OnWarning.

Example:  Let us consider two excel sheets as  follows

File 1

File 2

Translate File 1 into  second excel  i.e, File 2 sheet compatible  format

Step 1: Create a new project

Click file –> new –> project. Select Integration service from the group.

It will open up the SSIS designer which we will use for creating and maintaining Integration service packages.

In the SSIS package folder, we can see the default package created with the name “Package.dtsx”.
Step 2: Create a connection manager to an excel sheet.

Select excel and click on  add, Select the browser button and choose the excel file path

Step 3: Rename the connection manager.

Right-click on the connection manager and change the name to SourceExcelManager.

Step 4: Repeat step 3 and create another connection manager and point to the resultant file. Change the name to DestinationExcelManager.

Step 5: Create control flow: transfer data from source excel to destination excel.

We should select the control flow in the SSIS designer. Drag data flow task from the toolbox to designer

Rename the data flow task into “source excel to destination excel transfer task”.

Flow control: It helps to define the workflow and also control the flow of execution.

Step 6: Create the data flow

It helps to define the flow of data between source and destination.

Step 7: Create an Excel Source

Choose an excel source from the source group and place it in the designer.

Step 8: Configure the Excel sheet

Double click the excel source.

Select Data Source as “SourceExcelManager”, Data Access Mode as “Table or View” and Name of the sheet as “DataSheet1”

Step 9: Create a derived column.

In this toolbox from the Transformation, the group drags the Derived column to the SSIS designer.

Step 10: Connect Source to Derived column

Click on this arrow and connect it to derive a column.

Step 11: Configure the derived column
Double click on the derived column.

Write down Derived Column Name as Name, Select expression as Title + “ “ + FirstName + “ “ + LastName
Click Ok.

Step 12: Create an Excel Destination

Add excel designation in the SSIS toolbox.

Step 13: Attach the Derived column to the excel destination.

Following step 10, connect the derived column and excel destination.

Step 14: Configure Excel Destination

Double click on the excel destination

Locate connection Manager to “ExcelConnectionManager”, the Data Access Mode to “Table or View” and the Name of the excel sheet to “Datasheet1”.

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Click on mapping

Step 15: Execute the package
Press F5

We can find the output like below

Uses Of SSIS

1. Combining data from heterogeneous data stores
2. Populating data warehouses and data marts
3. Cleaning and standardizing data
4. Building BI into the data transformation process
5. Automating administrative functions and data loading

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