aggregate transformation in ssis. The semi-blocking transformation we just implemented runs in 17 seconds on average, in my test system, and uses 50 MB. aggregate transformation in ssis

 
 The semi-blocking transformation we just implemented runs in 17 seconds on average, in my test system, and uses 50 MBaggregate transformation in ssis <em> Next, double click on the Row Count Transformation, a pop up window open</em>

Find the MAX date and then use the. To get the actual MAX (Title), you'd have to join the original dataset to this aggregated set, on Price=Price,Number=Number,TitleOrdinal= [MAX (TitleOrdinal) from aggregated set]. Change the data type of this new port to double. Aggregator transformation. SSIS Alternatives: Talend. Ø In a GROUP BY clause, nulls are treated like other column values. Subscribe. am i doing something wrong? · It's quite possible that there may be trailing spaces that aren't apparent in data viewers that are causing the Aggregate. SQL Server Integration Services provide tasks to transform and validate data during the load process and transformations to insert data into your destination. Aggregate An Asynchronous full blocking transformation, Aggregate transformation allows to aggregate data from Data Flow to apply certain T-SQL. Aggregate Transformation. Or use the aggregate transformation (but max, min, etc. Use the following steps to create an SSIS package. Here "Asyncronous" means that the transform doesn't output rows for each input row. as an SSIS aggregate step will not produce the correct result on its own (either producing multiple rows or failing to identify the correct location)STEP 1: Drag and drop the data flow task from the toolbox to control flow and rename it as Sort Transformation in SSIS. Switch to Control Flow and add an Execute SQL Task from SSIS Toolbox as follows: Rename it to SQL Reset Target Table 1 and configure the task in the following way: Put the SQL Statement into the task: Truncate TABLE dbo. The columns in SELECT statement which are not a part of aggregate functions should be placed in GROUP BY statement. The Aggregate transformation applies aggregate functions, such as Average, to column values and copies the results to the transformation output. Another example is when you're running against the limitations of Integration Services (SSIS). It has two modes * Basic: It returns a single output. The Aggregate Transformation allows you to compute values based on an entire set of data. The Aggregate transformation has encountered 2000037 key combinations. From Microsoft, the Aggregate transformation applies aggregate functions, such as Average, to column values and copies the results to the transformation output. While the group is the most common way of. NOTE: There will be a performance hit regardless of the method you choose, but. Now select and drag Row Count transformation into Data Flow view. SELECT Day, SUM (Sales) Sales, MAX ( CASE WHEN DATEPART (dw,Day) = 1 THEN BOP ELSE NULL END ) As BOP, MAX ( CASE WHEN DATEPART (dw,Day) = 7 THEN EOP ELSE NULL END ) As EOP FROM Table GROUP BY Table. The Sort Task sorts the data based on the selected columns and based on these values determines which records are duplicates. Part of MSBI INTERVIEW QUESTIONS tasks about WHAT IS AGGREGATE TRANSFORMATION IN SSISAGGREGATE IN SSISGroup By in SSISMax in SSISMin in SSISSum in SSISCount. STEP 1: Drag and drop the data flow task from the SSIS toolbox to control flow and rename it Multicast Transformation. Group by Item Number and Item Name and then perform an aggregate operation on Update Date. It opens the SSIS Flat File Connection Manager Editor window. moreThe following diagram shows a simple data flow that has a source, two transformations, and a destination. SSIS offers a wide range of built-in transformations and tasks that allow you to manipulate and modify your data. เบราว์เซอร์นี้ไม่ได้รับการสนับสนุนอีกต่อไป. Download Microsoft Edge More info about Internet Explorer and Microsoft Edge. SSIS data transformation types. here you can write any SQL Query. SSIS is an enterprise scale ETL (Extraction, Transformation and Load) tool which allows you to develop data integration and workflow solutions. Within the Solution Explorer, right-click on the Connection Managers folder and choose New Connection Manager. STEP 1: Drag and drop the data flow task from the toolbox to the control flow region and rename it as performing SSIS Inner using Merge Join Transformation. Add Conditional Split transformation and have condition like RowNumber<=10. Integration Services now validates all connections before validating all of the data flow components when a package is opened and sets any connections that are slow or unavailable to work offline. Talend is an open-source ETL data integration tool compatible with both on-premises and cloud sources. "Unsyncronized" would probably be a better word. Row Sampling Transformation in SSIS with Example. There, specify you want the maximum. The transformation contains a conditional clause in an aggregate expression. Certification guidance provided. I am not clear about your requirement, but what you wrote may be achieved with Aggregate (count of the records with status==c). Besides aggregate functions, the transformation provides the GROUP BY clause, which you can use to specify groups to aggregate across. I mean It is not filtering the records. It allows us to group data based on specified columns and perform. Aggregator Caches. LookUp is very useful transformation SSIS component it performs lookup operation by connecting input value with data-table or table dataset columns. Add an OLE DB Command transformation after the aggregate. To understand in. Use sorted input to decrease the use of aggregate caches. The results of an SQL statement stored in a variable. In this example, we are going to use the SSIS Cache transformation to copy the data present in the Excel file to the cache file (. You can either use a Sort Transformation and select remove duplicates, or you can use the Aggregate transformation and only use group by (which will be more or less like a DISTINCT). IsBig Property of Aggregate Transformation in SSIS 2008 R2. Transformations can also perform lookup operations and generate sample datasets. · It was the length of the state column. You can configure the Merge Join transformation in the following ways: • Specify the join as FULL, LEFT, or INNER join. STEP 2: Drag and drop OLE DB Source, Multicast Transformation in SSIS toolbox to data flow region. The above two properties are given to improve the performance of the transformation. These managed stored procedures use the common language runtime (CLR) integration feature in [!INCLUDEssNoVersion]. What is aggregate transformation in SSIS? The Aggregate transformation applies aggregate functions, such as Average, to column values and copies the results to the transformation output. Its taking in a decimal value, doing a sum, but its spitting out a rounded int value. It is a very useful transformation if we are pulling same data from multiple sources. Bu tarayıcı artık desteklenmiyor. SSIS Left Outer Join using Merge Join Transformation Example. In this article we are going to see how to use an Aggregate data flow transformation control in SSIS packaging. Aggregate Expressions. From Toolbox add an Aggregate Transformation. DROP and Recreate indexes. The results of an SQL statement. The following transformations have no custom properties at the component, input, or output levels: Merge Transformation, Multicast Transformation, and Union All Transformation. Once the project is created, we will see on how to use an aggregate control for getting the maximum number in a particular column. Runway concrete is less than 30. Transformation Custom Properties. Now, Connect the Source Data (OLE DB Source) to the Conditional Split transformation task. It compares source data with. In my Data Flow Task, I need to look at 'tickets sold' for each record, aggregate the average, and add it as part of my insert. Learn technology at your own pace. The flexible, extensible, scalable, high-performance platform and toolset in SSIS caters to enterprise demands for traditional data extract-transform-load (ETL) processes as well as. Configure an Aggregator transformation to perform aggregate calculations, such as averages and sums, against groups of data. I'm using an aggregate transformation in SSIS. Books Online explains it as: “The Sort transformation sorts input data in ascending or descending order and copies the sorted data to the transformation output. You can apply multiple sorts to an input; each sort is identified by a numeral that determines the sort order. Download Solution PDF. Optionally, click the Advanced tab and set the attributes that apply to optimizing all the operations that the Aggregate transformation performs. dtsx) with two Data Flow Tasks (Using the Aggregate Transform and Using a Script Component). One of the outputs connect to a Aggregate transformation and Group by CustomerId and do a Minimum of Score. SSIS Character Map Transformation. CustomerId = Aggregate Transform. Highlighted the text SORTED in last statement because “It is not possible to use. Double click on the data flow task to open the data flow tab. Aggregate functions are used to do a list of needed activities like Sum, Average, and Group by etc. เบราว์เซอร์นี้ไม่ได้รับการ. STEP 1: Drag and drop the Data Flow Task from the toolbox to control flow region. In SSIS to do this directly from a flat file I think is tricky, as an SSIS aggregate step will not produce the correct result on its own (either producing multiple rows or failing to identify the correct location) However, it can can be done in a SQL db without much effort, using a partial left join and then filtering for the topmost row. It allows us to group data based on specified columns and perform various aggregate functions such as SUM, COUNT, AVG, MIN, MAX, etc. FollowSTEP 1: Drag and drop the data flow task from the toolbox to control flow and name it SSIS Conditional Split Transformation. more. Row Count task will save, in runtime, the result of the calculation in that variable. ) aggregate with MAX (StatusID) function , and group by ClientName. Use them to solve complex business problems by building high-performance data integration packages. Finally we can see the List of SSIS-2012 Transformations alphabetically as below: SSIS Aggregate Transformation. Integration Services Transformations: Are the components in the data flow of a package that aggregates, merges, distributes and modifies data. Difference between Keys Scale and Number of Keys properties in SSIS Aggregate Transformation. The aggregate functions available are- Count, Count Distinct, Sum, Average, Minimum and Maximum. Created SSIS package to load data from Flat Files and SQL Server 2008R2 to SQL Server 2012 by using Lookup, Fuzzy Lookup, Derived Columns, Condition Split, Term Extraction, Aggregate, Pivot Transformation, and Slowly Changing Dimension. On the properties Tab, Go to Expressions. To aggregate values in a dataset. If the answer is helpful, please click " Accept Answer " and upvote it. STEP 1: Open BIDS and Drag and drop the data flow task from the toolbox to control flow and name it Aggregate Transformation. • Specify the columns the join uses. 5 GB memory, but it gets released as the sort transformation starts to yield its output. STEP 3: Double click on the OLEDB source in the data flow region. Like add an output column to your current data flow or even create a separate data flow output. Double-click the OLE DB Source in the data. 8. Rename the Derived column as CustomerName_Len. Hi, I have an SSIS Aggregate transformation. Aggregate: The Aggregate transformation component essentially encapsulates number of aggregate functions as part of the Data Flow, like Count, Count distinct,. SSIS Data Flow Transformations . STEP 2: This transformation stores counted rows information in a variable only, so before using this transformation, we need to create a variable on the Variables tab and add an integer variable to the package. . The Data Flow Task (DFT) of SSIS uses a buffer (a chunk of memory) oriented architecture for data transfer and transformation. Next, rename it Fuzzy Lookup Transformation in SSIS. SSIS Character Map Transformation. Microsoft's SQL Server Integration Services (SSIS) is a data integration solution. STEP 1: Drag and drop the data flow task from the SSIS toolbox to control flow and rename it Multicast Transformation. Aggregate Transformation Custom Properties You configure the Aggregate transformation at the transformation, output, and column levels. It has to re-hash data because the number of key combinations is more than expected. 100% practical-oriented classes. Create the column as follows to store RowNumber as per following screenshot. The aggregate functions available are- Count, Count Distinct, Sum, Average, Minimum. The most common destinations are OLE DB Destination, Flat File, and Excel. Here we are creating a new package in existing SSIS project, right click on SSIS package folder then select New SSIS Packages. Configure an Aggregator transformation to perform aggregate calculations, such as averages and sums, against groups of data. That way, downstream processing for the more summarized aggregations (with fewer rows) can continue without waiting for the less. Here we will see the Group By operation in the. 7695 Reader (s) SSIS is an ETL (Extract, Transform and Load) tool needed for Data Warehousing applications. In Integration Services scripting and programming, you specify an asynchronous transformation by assigning a value of 0 to the SynchronousInputID property of the component's outputs. Double click on it will open the data flow tab. The Aggregate transformation includes the Keys, KeysScale, CountDistinctKeys, and CountDistinctScale properties. 3. DeskTypeTarget1. It is unable to filter some conditions like. Improve this answer. Using aggregate Transformation. Both the Sort and Aggregate transformations belong to the Blocking types. Now connect back the output of the Aggregate transform to Output2 use a Merge Join in the mapping map Output2. GROUP BY statements give you aggregated data. Once the project is created, we will see how to use an aggregate control for getting the count of the distinct rows of a particular column or a list of columns. , on to a transformation output. SSIS Conditional Split Transformation. Aggregation allows you to return a count of rows, even unique. SSIS Aggregate Transformation. For a university group project, we are building a data warehouse using SQL Server Management and Visual Studio. The Data Flow does its work primarily in memory, which gives SSIS its strength, allowing the Data Flow to. Drag and Drop the SSIS Bulk Insert Task from the toolbox to Control flow region. All the options are correct. You could use the aggregate transformation in the same way as that query of mine (BUT THAT WILL BE. Aggregate Transformation Integration Services Transformations Integration Services Paths. How to transpose a table into a column in SQL? Any help will be much. Group by Item Number and Item Name and then perform an aggregate operation on Update Date. dtsx in the project and rename it (e. Microsoft Edge'i indirin Internet Explorer ve Microsoft Edge hakkında daha fazla. Both are used to combine rows from two data sources, but each has its own way of merging them. There are a couple of approaches you can take to do this. Using aggregate Transformation. Data Conversion: Allows you. "Unsyncronized" would probably be a better word. Next, rename it as the SSIS Script Component as Destination. To start with this we should have the column to be of integer data type as specified in order to get the minimum. Let us see how it works. Aggregation of data can be solved with the Aggregate transformation in SSIS. Score and Output2. In order to sort the data, SSIS must first see every single row of the data. Designed ETL packages dealing with different data sources (SQL Server, Flat Files, and XMLs etc. Aggregate Transformation. These properties improve performance by enabling the transformation to preallocate the amount of memory that the transformation needs for the data that the transformation caches. Aggregate and sum data with SSIS to perform the equivalent of GROUP BY in SQL using the Aggregation Transformation. Use the Aggregate Transformation to sum those values. SQL Server Integration Services. Aggregate functions are used to do a list of needed activities like Sum, Average, and Group by etc. Earlier in the Understanding and Tuning the Data Flow Engine Topic, you saw a list of nearly a dozen transformations that meet this criterion. In Solution. An example is the Aggregate transformation, where the component has to add a row to the output to hold the computed aggregate values. All of our dimension tables work fine, one of our fact tables as well and right now we are trying to. The aggregate impact value of the aggregate used in _______. . SQL Server Integration Services transformations are the components in the data flow of a package that aggregate, merge, distribute, and modify data. Double click on the SSIS Merge Join Transformation. First read the instructions here Creating an Asynchronous Transformation with the Script Component. Column Chart. Data Type: This column is read-only and it. Improve this answer. You can do it in SSIS by using a Conditional Split transformation after the excel source and select only the rows where Pet=="Cat". · It seems that adding a sort. Programmatically add Aggregate Transform - Count Distinct to SSIS package. Use the transformation language to create aggregate expressions. · It seems that adding a sort. Inside Data Flow Task, Bring Two Flat File Sources and create connection to TestFile1 and TestFile2. This transformation performs a function similar to the SQL Server Aggregate functions. Drag two data flows onto the canvas. The OLE DB source provides four different data access modes for extracting data: A table or view. The Aggregate Transformation is a fully blocking transformation, which is to say it needs to pull the entire data set into memory, perform the SELECT DISTINCT in memory, and then allow the refined data set to pass into the destination, resulting in two full copies of the data in memory. If you use the Aggregate transformation, SSIS will read all of the data in memory before it starts outputting any data. Steps: Follow steps 1 to 3 in my first article to open the BIDS project and select the right project to work on an integration services project. What is the difference and in which scenario we use these properties ? Like to know, then continue . The reason you only see Group By, Count, Count Distinct is because you are attempting to perform operations on a string column. Hi, I'm doing a group by in an aggregate transformation. Step 4 – Drag and drop SAL & DEPTNO columns from source qualifier (SQ_EMP) to the aggregator transformation. You can design a package in such a way that it can pull data from non-dependent tables or files in parallel, which will help to reduce overall ETL execution time. Drag a Data Flow Task from the SSIS toolbox to the Control Flow. dtsx), then in Data Flow Task rename the Data Source (e. you have to use the above option in OLEDB source. Double click on this task, and it moves to the Data Flow tab. It Loads only a subset of your. For more Transformations >> Click Here. Double click on the OLE DB source in the data flow region will open the connection manager settings and provides space to write our SQL statement. Drag a Data Flow Task from the SSIS toolbox to the Control Flow. 3. Aggregator Transformation Ports. The integration service stores the data group and row data in aggregate cache. Use the Aggregate Transformation to sum those values. The Aggregate transformation has encountered 4085 key combinations. Drag and drop a Multicast Transformation Task on the Data Flow tab. 5. How to use Aggregate Transformation in SSIS Package with Group By and Sum Operation. Multicast transformation was introduced in SSIS 2005 and further enhanced and optimized in SSIS 2008 to use multithreading while writing data to multiple destination refer to this article. Talend also uses metadata to store the connection strings for XML, Excel, Web Services, FTP, etc. A table or view specified in a variable. You can only access SSIS Variables in the pre/post execute phase of a Data Flow. Therefore, increasing DefaultBufferSize will increase the memory space to execute Full Block Transformations. STEP 1: Drag and drop the data flow task from the toolbox to the control flow and rename it as Cache Transformation. Don't use a complicated SSIS solution for something that is a simple SQL statement. SSIS’s Multicast Transformation distributes data to numerous target paths without even any precondition or alterations. Once you double click on Flat file Source component, a Flat File Source Editor window opens. This tells the. Note that these operations are async, meaning all rows must enter this task before they continue, as opposed to sync tasks that just eats and spits. While using Aggregator transformation, you need to check group by as the result returns each row by performing aggregation one by one and the passes to the pipeline. SSIS Cache Transform Transformation. STEP 1: Drag and drop the data flow task from the toolbox to control flow and rename it as Sort Transformation in SSIS. A Lookup Transform. MainPipeClass. Double-click on it will open the data flow tab. Let’s take a quick deep dive with some important SSIS transformations under both categories, Synchronous and Asynchronous, which can be useful to manage and transform data during ETL execution. Identifying incoming rows that contain changes. ” Step 4: Check the box next to “Microsoft Power Pivot for Excel. SSIS Conditional Split Transformation. STEP 1: Open BIDS and Drag and drop the data flow task from the toolbox to control flow. This tutorial explains the main cause of the performance problem faced while merging different data sources in SQL Server Integration Services and provides a few alternatives. Does using Aggregate transform really helpful in my case. It is a similar function to the Convert or Cast functions in T-SQL. The Aggregator transformation behaves like the Expression transformation except you can configure the Aggregator. Technical articles, content and resources for IT Professionals working in Microsoft technologiesSSIS Interview Questions and Answers for 2023. Open SQL Server Data Tools and create a new integration project. For example, you can combine values from the FirstName and. If the Aggregate Transformation package is secured with a password (In general, Yes), enter an appropriate password. The first will "SQL Derive MAX date". One can use this SSIS tutorial to update warehouses, data mining, and download or copying files. Road pavement concrete is less than 30. In SSIS Package make connection to your flat file. Step 5: Click “OK” to enable Power Pivot in Excel. Part of MSBI. The Aggregate Transformation allows you to compute values based on an entire set of data. I have say 6 columns in the output and I'm grouping on all of them - how can I get duplicate rows in the output? If I do the same select and group by in SQL on the source data I don't get any duplicate rows. ” Step 4: Check the box next to “Microsoft Power Pivot for Excel. Alternatively you can omit the Conditional Split and get the sums directly from the Aggregate transformation. The Aggregate transformation supports the following operations. In the General tab, we can change the Name and description. A Data Viewer allows viewing data at a point of time at runtime. Step 3: In the “Manage” box, select COM Add-ins” and click “Go. Steps: Add Script component and select it as " transformation ". This video walks you through aggregate transformation in SSIS. It runs on the Java platform and utilizes Java for advanced scripting components. In one of the streams, add an Aggregate transformation that Groups by Employee_Id and adds a new count column that contains COUNT (*) for each Employee_Id. Click ok to finish configuring the SSIS Execute Package Task. In this tip, we'll take a closer look on the performance impact of semi-blocking transformations in SSIS. Follow steps 1 to 3 on my first article to open the BIDS project and select the right project to work on an integration services project. Nowhere in the SSIS documentation does it state that there is any adherance to T-SQL, ANSI SQL or any other SQL dialect. an integer with a fixed value of 1 to both data flow paths (from Table1 and from AggregateTable). aggregates data with functions such as Average, Sum, Count, Max, Min. For example, a package can extract data from multiple sources, and then use this transformation to convert columns to the data. First read the instructions here Creating an Asynchronous Transformation with the Script Component. SqlServer. In this tutorial, we are going to learn how does Aggregate Transformation work in SSIS package. 8. The integration service performs aggregate calculations as it reads and stores data group and row data in an aggregate cache. The Slowly Changing Dimension Wizard only supports connections to SQL Server. Now connect back the output of the Aggregate transform to Output2 use a Merge Join in the mapping map Output2. In previous articles in this SQL Server Integration Services (SSIS) series, you’ve seen how to add a Data Flow task to your control flow and then add components to the data flow. The Aggregate transformation has encountered 2000037 key combinations. Later in the data flow, different transformations can be applied to the column copies. After outputting the final input row, the aggregate also returns one additional row with. 4. It has to re-hash data because the number of key combinations is more than expected. You can also use the above query, minus the insert production table, as a source in a data flow task in case you need to apply more transforms after the aggregation. The query can be a parameterized query. Now go to ToolBox pane, select Data Flow task and drag into Control Flow View. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. For an overview and listing of properties for the following transformations, please check out the side menu item "Parameters". This means the transformation removed 9 duplicates based on the column state:ETL Tools SSIS (SQL Server Integration Services) Work History. Aggregate Transformation is used in Data Flow Task to aggregate the data like Sum, Max, Min, Avg etc. The transformation contains a nested aggregate function. We. Merge Join the two streams back together on Employee_Id,. Tips for Aggregator Transformations. Double click on it, and it will open the data flow tab. Columns of any data type can be used for grouping. The Aggregate transformation in SSIS is used to perform aggregate operations on data within the data flow. Step 5 – Double click on the aggregator transformation to open its properties, and then. The Exists transform in Azure Data Factory is an equivalent of SQL EXISTS clause. Aggregate. Let us Run the Package and see whether we successfully called the package present in the SQL Server using Execute Package Task or not. There are things you can do with a script task. Next Drag and drop data-flow task on designer. STEP 1: Drag and drop the data flow task from the toolbox to control flow and rename it. We will group by the ‘Name_Cleaned’ column (which is now unique per group) and. Row Count. Steps: Follow steps 1 to 3 on my first article to open the BIDS project and select the right project to work on an integration services project. SSIS Character Map Transformation. Here we will see the Group By operation in. Transformation Custom Properties. Based on the logic you mentioned above, the Minimum operation should work. Right-click on Data Flow Task and rename it to SSIS LOOKUP TRANSFORMATION. Let’s add an SSIS Multicast transformation and join it with Merge Join. Problem. Double click or right-click on the derived column transformation to edit. To open advanced editor, right-click on the source component and click on Show Advanced Editor option: Figure 4 – Show Advanced Editor. It allows the transformation to use the source data. You can also calculate the sum or average of numeric data. Developing an Aggregator Transformation. Same as the Alias column in T-SQL. Derived Column: Select between <add new column> and <replace an existing column> options. The Derived Column transformation can define multiple derived columns, and any variable or input columns can appear in multiple expressions. You can read more about buffer sizing in the following Technet article. [Group] FROM [Sales]. In the merge join transformation as join Keys I've specified the. Ana içeriğe atla. In this post I demonstrate the Aggregate and Data Conversion Transformations in SQL Server Integration Services (SSIS). Let us see an example of the same. Aggregate Transformation Basic Mode in SSIS. In the aggregate transformation I've specified a group by operation for a DT_WSTR code and a count distinct for the same code. Aggregate Transformation: This transformation is used to aggregates the data from transformation or source and it aggregates the values by group. For example, you can use the Copy Column transformation to create a copy of a column and then convert the copied data to uppercase characters by using the Character Map transformation, or apply aggregations to the new column by using the. It moves the data to an appropriate destination depending upon the condition. you have to use the above option in OLEDB source. The Aggregation transformation supports an input and multiple outputs, if different aggregations of the same source data would be needed at the same time. According to tutorial from first step, click on Excel Connection Manager -> Properties -> Expressions. Percentage Sampling – If I take 10 as value then 10% of 1000 i. Merge sort is an option, but if you really want to use Excel as a source for the SSIS Lookup task, you can do it. The Aggregate transformation supports multiple outputs, and each can be configured differently. </p> </li> <li> <p dir="auto">At the column level, you specify the following. Sorting and aggregating in an SSIS dataflow is always. By applying the Percentage Sampling transformation to a data flow, you can uniformly reduce the size of the data set while preserving its data characteristics. After that you can also verify connection by clicking on Test connection. Double click on the data flow task will take us to Data flow region. Users can see information statistics to the AGGREGATE component via Multicast in parallel while extracting data from the source to the dest1 table and saving to the dest2table if we save the package and conduct this. Here we will see the COUNT DISTINCT. The actual aggregate function available will depend on the data type of field that the transformation is being applied against. In this tutorial, we will learn How to remove duplicate records from a file by using Sort Transformation in your SSIS package. Is there a way to capture an aggregate value from the dataset into a variable, all within the data flow task? Specifically, I'd want to capture the MAX(<DateValue>) from the entire. For more Transformations >> Click Here.