What are the different tasks in SSIS?

SSIS Tasks
  • Execute SQL Task. It is used to execute the SQL statements against a relational database.
  • Data Flow Task. ...
  • Analysis Services Processing Task. ...
  • Execute Package Task. ...
  • Execute Process Task. ...
  • File System Task. ...
  • FTP Tasks. ...
  • Script Task.
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How many tasks are there in SSIS?

Total Tasks=Number of processors of machine+2.
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What tasks can SSIS handle?

The task that runs data flows to extract data, apply column level transformations, and load data. These tasks do the following processes: copy files and directories; download files and data; run Web methods; apply operations to XML documents; and profile data for cleansing.
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What are different control flow tasks in SSIS?

Creating a control flow includes the following tasks: Adding containers that implement repeating workflows in a package or divide a control flow into subsets. Adding tasks that support data flow, prepare data, perform workflow and business intelligence functions, and implement script.
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What are the 3 different types of control flow elements in SSIS?

Active script task: It parses and executes active scripts. Analysis services execute DDL Task: It executes DDL operation of analysis services. Analysis service processing task: This is used to process the data of facts cube, dimensions in analysis services we use this task.
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15 Execute SQL Task in SSIS | Use variables in Execute SQL task in SSIS



What is difference between Merge and Union all in SSIS?

The main difference is that Union All doesn't require that the data sources are sorted, nor does its output. Besides, Union All accepts more than two inputs while Merge transformation doesn't. Before illustrating how to use the Merge transformation, we will explain several approaches to sort data sources in SSIS.
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What is dataflow task?

The Data Flow task encapsulates the data flow engine that moves data between sources and destinations, and lets the user transform, clean, and modify data as it is moved. Addition of a Data Flow task to a package control flow makes it possible for the package to extract, transform, and load data.
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What is Dataflow in SSIS?

Data flow in SSIS defines the flow of data from a source to a destination. The Data Flow Task is the most frequently used task in SSIS, which contains the data transformation logic (ETL processes). It moves the data from source to destination and adds transforms in them to merge, update or split data.
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What are SQL tasks?

The Execute SQL task runs SQL statements or stored procedures from a package. The task can contain either a single SQL statement or multiple SQL statements that run sequentially. You can use the Execute SQL task for the following purposes: Truncate a table or view in preparation for inserting data.
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What is Execute Process Task in SSIS?

What is the Execute Process Task in SSIS? The SSIS Execute Process Task runs apps or batch files as part of the SSIS package workflow. Though you can run any executable app, batch file, or PowerShell commands, you typically use it for data integration purposes.
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What is Execute Package task in SSIS?

The Execute Package task can run child packages that are contained in the same project that contains the parent package. You select a child package from the project by setting the ReferenceType property to Project Reference, and then setting the PackageNameFromProjectReference property.
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What are containers in SSIS?

Containers are objects in SQL Server Integration Services that provide structure to packages and services to tasks. They support repeating control flows in packages, and they group tasks and containers into meaningful units of work. Containers can include other containers in addition to tasks.
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What is Bulk insert Task in SSIS?

The Bulk Insert Task enables you to insert data from a text or flat file into a SQL Server database table in the same high-octane manner as using a BULK INSERT statement or the bcp.exe command-line tool.
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What is difference between Oledb command and execute SQL task in SSIS?

The OLE DB Command runs insert, update or delete statements for each row, while the Execute SQL Task does a Bulk Insert in this instance. That means every single row that goes through your package would have an insert statement run when it gets to an OLE DB Command .
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What is Oledb command in SSIS?

The OLE DB Command transformation runs an SQL statement for each row in a data flow. For example, you can run an SQL statement that inserts, updates, or deletes rows in a database table.
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What are parameters in SSIS?

SSIS parameters are placeholders for runtime values. Think of parameters in SSIS as a special type of variable which can be bound to SSIS object properties. The window for Parameters shows that these look a little like native SSIS variables.
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What is event handler in SSIS?

SSIS event handlers are the simplest means of turning an SSIS script into a reliable system that is auditable, reacts appropriately to error conditions, reports progress and allows instrumentation and monitoring your SSIS packages. They are easy to implement, and provide a great deal of flexibility.
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How many types of transformations are there in SSIS?

There are three (3) different types of SSIS transformations available in the SSIS Toolbox for the DataFlow of our SSIS packages. For highest performance, it's recommended to use as few semi-blocking and fully blocking SSIS transformations as possible.
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What is derived column in SSIS?

The Derived Column transformation in SSIS allows us to create new column values by applying expressions to transformation input columns. An expression can be created by any combination of variables, functions, operators, and columns from the transformation input columns.
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What is conditional split in SSIS?

A Conditional Split Transformation in SSIS is just like the IF condition or CASE statement. It checks the given condition and based on the condition result; the output will send to the appropriate destination path. It has ONE input and MANY outputs.
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What is Connection Manager in SSIS?

SSIS connection managers are used to configure a connection between source and destination data stores such as Excel, Text, XML, FTP, Relational databases and so on.. to extract and load data. SSIS uses the connection manager as a logical representation of a connection.
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What is synchronous and asynchronous transformation in SSIS?

Synchronous components: simply, number of records IN = number of records OUT in buffer cache. Asynchronous components: number of records IN <> number of records OUT. On the other hand, the result output of a asynchronous component uses a new buffer.
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What is the difference between control flow and data flow?

The major difference between control flow and data flow in SSIS is that Control Flow can execute only one task at a time in a linear fashion. On the other hand, Data Flow can perform multiple transformations at the same time.
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What is Fuzzy Lookup transformation in SSIS?

The Fuzzy Lookup Transformation in SSIS is used to replace the wrongly typed words with correct words. Unlike Lookup Transformation, the Fuzzy Lookup transformation in SSIS uses fuzzy matching to find one or more close matches in the reference table and replace the source data with reference data.
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What is fast load in SSIS?

Fast load. In brief, fast load mode means using BULK INSERT operation when inserting data into the OLE DB Destination. From a performance perspective, the fast load is highly recommended since data is inserted in batches rather than row-by-row insertion.
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