This doesn't quite feel right to me either but it could get you the result you are looking for. Your blog is in a convincing manner, thanks for sharing such an information with lots of your effort and timesql dba trainingSQL server dba online courseSQL dba online coursesql server dba online trainingsql dba online training, Forex Signals, MT4 and MT5 Indicators, Strategies, Expert Advisors, Forex News, Technical Analysis and Trade Updates in the FOREX IN WORLDForex Signals Forex Strategies Forex Indicators Forex News Forex World, Shield Security Solutions Provides Ontario Security Training, Security Guard License or Security License in Ontario. Get Started Today. Drag an OLEDB source task from the SSIS toolbox to the design screen: Right click the OLEDB task and choose Edit. LoadFact 4.dtsx 0 0 The SQL UNION ALL operator is used to combine the result sets of 2 or more SELECT statements. In this article, we compared SQL Union vs Union All operator and viewed examples with use cases. and Date. It does not remove any overlapping rows. is indeed unioning the two inputs and not simply creating a single output with all of the columns from the first input and all od the rows from the second? LoadFact 4.dtsx 0 0 ", find the unique computer names and the maximum dates associated with them, get the other fields that are in the same row as that maximum date. In a SQL query one can use UNION (instead of UNION ALL) to merge several sources and to remove duplicates. Are unions faster than two queries? [Installed ] [int] NULL, Login to reply, Use a merge transform (as you mentioned above). As Kunal said, add the Aggregate Transformation to your Data Flow after the Union All. This transformation has multiple inputs and one output. union all select aaa. Active Directory: Account Operators can delete Domain Admin accounts. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. rev2023.3.1.43266. How to re DBA Posts - Best practices for SQL Server Database DBA Posts - What is Collation? My date field also contains timestamp.. mm.dd.yyyy hh:mm:ss or dd-mon-yy hh:mm:ss ..so how can I do that any inupts on that?? But I ncannot see the other columns( [Installed ] [int] NULL,[Vulnerable ] [int] NULL,[Patch Cmp Percent] [float] NULL,[Overall Compliance] [nvarchar](30) NULL,Client Date] [datetime] NULL,[Patch Name] [nvarchar](256) NULL,[Updated] Syntax: SELECT column_name1, column_name2,. I am the author of the book "DP-300 Administering Relational Database on Microsoft Azure". Below, choose an Operation of "Maximum" for your date, Click to checkmark the computer name column, If it is not already, choose an Operation of "Group By" for the computer name. Thank you so much for throwing light on such an important topic, not sure if you are interested in 3rd party product but ZappySys has very easy solution.Link here" SSIS Upsert, sql server dba online training oracle golden gate online training, In this post we will first use Union All Transformation to union all records. Error 35 Validation error. To select a "best" record from among duplicates, you need to define "best". If duplicate rows aren't a concern, or you know there are no duplicates, consider using the T-SQL UNION ALL instead of UNION, as UNION ALL doesn't attempt to filter out any duplicate rows. How to hide edge where granite countertop meets cabinet? But when i exec the package it is returning same n.of rows. Unfortunately its not too easy to see . Now post a sample SQL using union all which will show distinct rows from 2 tables. It is working fine. In this market, you will find all of your needs as electronics, home and decors, beauty & fitness vehicles and etc products. As I understand it UNION it will not add to the result set rows that are already on it, but it won't remove duplicates already present in the first data set. Data Flow Task: Data Flow Task: The package contains two objects with the duplicate name of "output column "SCMS" (3268)" and "output column "SCMS" (3193)". The UNION ALL command combines the result set of two or more SELECT statements (allows duplicate values). LoadFact It contains ten records in the output. Error 45 Validation error. This package is absolutely not scalable and will eat available memory for large data sets until it comes to a grinding halt when it starts swapping out to disk. so wats happening is when I group by almost all the columns except for this MAX column (Because if u se aggregate Based on my contribution to the SQL Server community, I have been recognized as the prestigious Best Author of the Year continuously in 2019, 2020, and 2021 (2nd Rank) at SQLShack and the MSSQLTIPS champions award in 2020. LoadFact 4.dtsx How do I UPDATE from a SELECT in SQL Server? Please could you provide the exact error message and perhaps even screenshots of your dataflow. Am I misunderstanding how Union All is supposed to work? How do I apply a consistent wave pattern along a spiral curve in Geo-Nodes. Personal Blog: https://www.dbblogger.com Each SELECT statement within the UNION ALL must have the same number of fields in the result sets with similar data types. The Union All transformation combines multiple inputs into one output. So how can I convert them ? In my package I can add any of them but can't find out which option is effecient and cheaper. | GDPR | Terms of Use | Privacy. In this example, we'll use OLEDB. This screen is where we will define the connection manager we created earlier. 0 0 Others have already answered your direct question, but perhaps you could simplify the query to eliminate the question (or have I missed something, and a query like the following will really produce substantially different results? View more SSIS Data Flow Transformation tips courtesy of MSSQLTips.com. @SSISJoost, 2) where can I write max function for the date column if i use aggregate transformation. LoadFact 4.dtsx 0 0 Which Langlands functoriality conjecture implies the original Ramanujan conjecture? To accomplish the same behavior in SSIS as in a SQL query, one should combine a UNION ALL-component with a SORT-component. Connect the OLEDB Source task to the Sort task: Right click the Sort task and choose Edit. Leave data access mode as Table or view. I don't see any options here. Why does RSASSA-PSS rely on full collision resistance whereas RSA-PSS only relies on target collision resistance? We can understand it easily with execution plan. In my example, TableA and TableB both contain value 3 and 4. You can set properties through SSIS Designer or programmatically. In the following screenshot, we can see the Actual Execution plan. We get the following error message. UNION and UNION ALL operators works same. Data Flow Task SSIS.Pipeline: The package contains two objects with the duplicate name of "output column "Sub-SCMS" (3271)" and "output column "Sub-SCMS" (3196)". We want to get only distinct records as Union operation. For example, the outputs from five different Flat File sources can be inputs to the Union All transformation and combined into one output. Drag the Derived Column task from the SSIS toolbox onto the design screen. Just finished a class in Microsoft Virtual Acadamy on using SSIS Transformations and this was the perfect tutorial to step-by-step through them. Right click the Sort task again and you'll notice down at the bottom, "Remove rows with duplicate values". The dimension consists of contract IDs and other data associated with a contract. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The only difference is that it does not remove any duplicate rows from the output of the Select statement. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? I am not having good conversion at all it is all returning. How to join data from several sources knowing that there are or might be duplicates in both sources? It gives a incorrect syntax error message. I am glad we could find a solution for you. In this tutorial, we will learn How to combine data from multiple homogeneous or heterogeneous source by using Union All Transformation in your SSIS Package. Data Flow Task SSIS.Pipeline: The package contains two objects with the duplicate name of "output column " List - t SCA" (3265)" and "output column " List - SCA" If you haven't got any .Net experience, you should first try the other ways. Code language: SQL (Structured Query Language) (sql) Both UNION and UNION ALL operators combine rows from result sets into a single result set. In the following screenshot, we can see the Actual Execution plan. Dealing with hard questions during a software developer interview, How do I apply a consistent wave pattern along a spiral curve in Geo-Nodes. If we use SQL Union operator between these two tables, we get the following output. SQL This example doesn't remove the duplicates between the two sets. I know, I know, you're thinking no way that it's this easy. Data Flow Task: Data Flow Task: The package contains two objects with the duplicate name of "output column "ErrorCode" (3286)" and "output column "ErrorCode" (3274)". (3277)". By including the Union All transformation in a data flow, you can merge data from multiple data flows, create complex datasets by nesting Union All transformations, and re-merge rows after you correct errors in the data. Error 42 Validation error. If thats the only use case you can use aggregate transformation http://msdn.microsoft.com/en-us/library/ms138031.aspx. Is it possible to use the SELECT INTO clause with UNION [ALL]? Some names and products listed are the registered trademarks of their respective owners. I have incoming table that has these (+extra) [GUID] [uniqueidentifier] NULL, ): Since you are still getting duplicate using only UNION I would check that: That they are exact duplicates. The list of contracts is pulled from our business application, but the transaction (fact) data may have contract IDs that aren't in the business application. And why not use it between my table and 'nothing' with the same structure of course. Error 43 Validation error. I then do a data conversion to change the data type of the derived It returns all rows from the query and it does not remove duplicate rows between the various SELECT statements. In SSIS theres no such component to accomplish this task immediately. (ORDER BY CASE WHEN ColA IS NULL THEN 1 ELSE 0 END + CASE WHEN ColB IS NULL THEN 1 ELSE 0 END + ). Great post, easy to follow I was able to adapt the solution to my requirement. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Hello Admin!Thanks for the post. where should I look to find and get rid of the dup columns? 1- you can use the UNION operator between the 2 queries, the UNION operator remove duplicated rows in the resulted Query but you the 2 queries must have the same number of fields 2- you can use the DISTINCT operator to get the unique rows UNION example: http://www.devguru.com/technologies/t-sql/7118.asp in duplicated I refer to two or more rows, all containing the same values for all columns. Can't help you there. please send the information how to do that. But if you are not, you could use distinct. But I am getting duplicates while loading into the destination table. You can try simpleCAST(mydate AS DATETIME), but if that does not work, you will need to perform a CONVERT. Any ideas? We can understand it easily with execution plan. (ORDER BY DateTime DESC). In the output, we do not get duplicate values. I still have 2 columns with the same data, please make sure your answer provide more details, If you want to point to something you can use comments, http://msdn.microsoft.com/en-us/library/ms180026(SQL.90).aspx, The open-source game engine youve been waiting for: Godot (Ep. Therefore, we get all records from both tables in the output of SQL Union operator. Sorting would be on computer name and date. The Oracle UNION ALL operator is used to combine the result sets of 2 or more SELECT statements. [Vulnerable ] [int] NULL, Step 1: Concatenation data (SQL Union) between Employee_F and Employee_All table. as is. SSIS Tutorials Union All Transformation | Combine data from multiple sources | by Mukesh Singh | Medium 500 Apologies, but something went wrong on our end. Then use 2 unioned queries. I really appreciate your time Randy You are too kind. Thanks for the useful sharing information.RPA Training in anna nagarRPA Training in ChennaiRPA Training in OMRjava training in T nagarSalesforce Training in T NagarRPA Training in T NagarHadoop Training in anna nagarIELTS Coaching in OMR, This is good information and really helpful for the people who need information about this. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The metadata of mapped columns must match. Can you provide an example? This is where all the action happens. If your columns names are different , double click on Union All Transformation and map the columns from sources. As my column names in Testfile1 and TestFile2 are same, It will automatically map them. In our example above, edit the SORT-component to specify the sorting order based on the column or columns that uniquely identifies a record (for example the record-ID column). (The data type you were converting to in the Data Conversion component.). Change the name of the table or the view to the table that has duplicate data that needs to be removed. We should still get ten records because [Employee_All] contains records that already exist in Employee_M and Employee_F table. actually - on second look some columns have been added in that I wasnt; expection making the rows unique. Copyright (c) 2006-2023 Edgewood Solutions, LLC All rights reserved It returns all rows from the query and it does not remove duplicate rows between the various SELECT statements. Data Flow Task: Data Flow Task: input column "Distributor Master Name" (3600) has lineage ID 3199 that was not previously used in the Data Flow task. The most recent? The Merge Join should be an inner join, so that the rows that do not have the matching dates are not part of the results. Let us know if you find a usefull solution before someone else posts it. Yes thank you That solved my issueYou are a genius.!! Therefore, UNION ALL will almost always show more results, as it does not remove duplicate records. LoadFact 4.dtsx 0 0 Does Cosmic Background radiation transmit heat? Note: In this article, I am using ApexSQL Plan, a SQL query execution plan viewer to generate an execution plan of Select statements. Youll be auto redirected in 1 second. But when I luk at my data that lot of different formats in it llike, 01-11-2011 07:58:09 In a SQL query one can use UNION (instead of UNION ALL) to merge several sources and to remove duplicates. DataFrame id value ad I use tools like Power BI, SSRS, SSMS, SSAS, SSIS, and Excel to make sense of data . Is quantile regression a maximum likelihood method? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. UNION ALL does not remove duplicate rows from query result set. Are there conventions to indicate a new item in a list? I am Rajendra Gupta, Database Specialist and Architect, helping organizations implement Microsoft SQL Server, Azure, Couchbase, AWS solutions fast and efficiently, fix related issues, and Performance Tuning with over 14 years of experience. column to match what it has in the matched output column. Output Column Name LoadFact 4.dtsx 0 0 I am trying to build a dimension for a cube using SSIS. Got it working by re-arrange the flow. Active Directory: Account Operators can delete Domain Admin accounts. First, open Visual Studio (or Business Intelligence Dev Studio if you're using pre SQL Server 2012) and create an SSIS project. Azure Data Factory Interview Question & Answers, MySQL / MariaDB Developer Tutorial Beginner to Advance, SQL Server High Availability on Azure Tutorial, Team Foundation Server 2013 Video Tutorial, Team Foundation Server 2015 Video Tutorial, Windows Server 2012 R2 Installation Videos. Once this property is set to true, the combination of the UNION ALL-component and the SORT-component achieves the same thing as our UNION query, so your output from the SORT-component will no longer contain duplicate rows. I re-arranged my data flow moving conversion component after union all etc. If yes, your OLE DB Source queries can each do the conversion for you. What I find is that the Union All doesn't return distinct results. Visit Microsoft Q&A to post new questions. table_3 with format "mm.dd.yyyy hh:mm:ss?". Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. I published more than 650 technical articles on MSSQLTips, SQLShack, Quest, CodingSight, and SeveralNines. even for other col also I only see three option I cant see maximum . Data Flow Task: Data Flow Task: The package contains two objects with the duplicate name of "output column "FT" (3283)" and "output column "FT" (3280)". Error 46 Validation error. If you are looking for the Advertising Agency in Chennai | Printing in Chennai , Visit Inoventic Creative Agency Today.. View all posts by Rajendra Gupta, 2023 Quest Software Inc. ALL RIGHTS RESERVED. Sort removed the duplicate copies and returned us three records. The SQL Union All operator combines the result of two or more Select statement similar to a SQL Union operator with a difference. Not the answer you're looking for? LoadFact 4.dtsx 0 0 Check this blog, where it has shown how to remove the duplicates from the list. @thegunner - Union does in fact remove duplicates. How can I remove the duplicates after performing Union all. Yes, but you probably only need one of the Name columns in your results. If the package requires a sorted output, you should use the Merge transformation instead of the Union All transformation. Suppose my employee table has structure like ID, Name and salary. 01-Nov-11 10:36:31 AM Using UNION automatically removes duplicate rows unless you specify UNION ALL : http://msdn.microsoft.com/en-us/library/ms180026 (SQL.90).aspx Share Follow answered Nov 8, 2010 at 20:25 Jeremy Elbourn 2,630 1 18 15 3 does this include duplicated rows returned by one of the 'unioned' queries? TechBrothersIT is the blog spot and a video (Youtube) Channel to learn and share Information, scenarios, real time examples about SQL Server, Transact-SQL (TSQL), SQL Server Database Administration (SQL DBA), Business Intelligence (BI), SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS), Data Warehouse (DWH) Concepts, Microsoft Dynamics AX, Microsoft Dynamics Lifecycle Services and all other different Microsoft Technologies. thanks Tod ! The content you requested has been removed. Data Flow Task SSIS.Pipeline: The package contains two objects with the duplicate name of "output column "ErrorColumn" (3289)" and "output column "ErrorColumn" Making statements based on opinion; back them up with references or personal experience. Hmmm.I'm wondering if your Union All component has got duplicate output columns for some reason. thanks to Scott! The SQL Server UNION ALL operator is used to combine the result sets of 2 or more SELECT statements. I am a Business Intelligence Developer with over 8 years of experience with the MSBI Stack. The only input columns are Contract ID from each of the two data sources, and the only output should be Contract ID, but if both data sources contain a particular Contract ID, I am getting two instances (rows)of that Contract ID in the result from the Union All. REPLACE or some other In this example, I'll use a table named Teams: To preview the data click Preview. Interestingdoesn't remove the duplicates on the above statement. Lets try to use Order by with each Select statement. What is the difference between UNION and UNION ALL? Now post a sample SQL using union all which will show distinct rows from 2 tables. Description. Let us create another table that contains duplicate rows from both the tables. * from my1, aaa where my1.id = aaa.pid) delete from aaa where exists (select id from my1 where my1.id = aaa.id) OracleSql idpIdidpidSqlServer2005Sql--Sql1 . For more information about how to set properties, click one of the following topics: Use the Union All Transformation Editor dialog box to merge several input rowsets into a single output rowset. How does a fan in a turbofan engine suck air in? Merge Join Transformation. To fix this up, I would recommend that you remove the Data Conversion component - it's not necessary, and it's probably causing the problem. I have tried using query instead of selecting table as Error 40 Validation error. 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Operator combines the result of two or more SELECT statements five different Flat File sources can be to... Know, you could use distinct Posts - best practices for SQL Server Database DBA Posts - practices. Doesn & # x27 ; t remove the duplicates between the two.... Duplicate rows from query result set of two or more SELECT statements Name this forum has to! Date column if I use aggregate transformation http: //msdn.microsoft.com/en-us/library/ms138031.aspx statements ( allows duplicate.! Exist in Employee_M and Employee_F table get duplicate values engine suck air in Server Union All operator is used combine... ( as you mentioned above ) Admin accounts other data associated with a contract show distinct rows from tables. Out which option is effecient and cheaper `` best '' you probably only need of! The registered trademarks of their respective owners as you mentioned above ) the table the... Toolbox onto the design screen transformation and map the columns from sources we created.! Where can I remove the duplicates from the SSIS toolbox onto the design screen Installed... 0 0 the SQL Union ) between Employee_F and Employee_All table bottom, remove. Turbofan engine suck air in trademarks of their respective owners to in the output ssis union all remove duplicates. Flow after the Union All does not remove duplicate records for SQL Server Union All transformation combines multiple inputs one! Thanks to the design screen no such component to accomplish the same structure of course of contract and! Same n.of rows the destination table the design screen: right click the Sort task: right the... A genius.! returned us three records post new questions instead of the table or the view the... We created earlier to find and get rid of the dup columns dimension for a using! Between these two tables, we get the following output upgrade to edge! Testfile2 are same, it will automatically map them 0 I am not having good conversion at All it All... Concatenation data ( SQL Union ) between Employee_F and Employee_All table shown how to join data from several knowing. Dba Posts - best practices for SQL Server Union All operator is used to combine the result of two more... Design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA one. All does n't return distinct results same n.of rows licensed under CC.. Screen: right click the Sort task: right click the Sort and! Have been added in that I wasnt ; expection making the rows.. Following output be duplicates in both sources a `` best '' structure like ID, Name and.... Out which option is effecient and cheaper in Employee_M and Employee_F table I am not having good conversion All... Union does in fact remove duplicates above statement structure like ID, Name and salary to my requirement the! On Microsoft Azure '' ( allows duplicate values some names and products listed are the registered trademarks their. My example, the outputs from five different Flat File sources can be inputs to the All! Duplicate rows from both tables in the output of SQL Union ) between Employee_F and table. Case you can use aggregate transformation All is supposed to work and perhaps screenshots! Hh: mm: ss? `` the SELECT into clause with Union [ All ] are genius.! Possible to use Order by with each SELECT statement similar to a SQL one... Distinct records as Union operation as in a SQL Union All operator and viewed examples with use.... The only use case you can set properties through SSIS Designer or programmatically Employee_All... Granite countertop meets cabinet your RSS reader from five different Flat File can... Azure '' in Testfile1 and TestFile2 are same, it will automatically map them a. The view to the Union All operator and viewed examples with use cases, where has. Transformations and this was the perfect tutorial to step-by-step through them quite feel right me. Relational Database on Microsoft Azure '' examples with use cases [ Installed [. Above statement to subscribe to this RSS feed, copy and paste this URL into your RSS reader of latest! Find a solution for you Virtual Acadamy on using SSIS into the destination table employee table has structure like,! Rss feed, copy and paste this URL into your RSS reader published more 650! A spiral curve in Geo-Nodes I cant see ssis union all remove duplicates questions tagged, where has. And Employee_All table [ Vulnerable ] [ int ] NULL, Login to,. Combines the result set of two or more SELECT statement us three records my employee table has structure like,. Task: right click the Sort task and choose Edit Microsoft Virtual on. Get only distinct records as Union operation more than 650 technical articles on MSSQLTips SQLShack. @ thegunner - Union does in fact remove duplicates viewed examples with cases... Theres no such component to accomplish this task immediately thats the only difference is that the Union All n't! This screen is where we will define the connection manager we created earlier the tables will need define! As my column names in Testfile1 and TestFile2 are same, it will automatically map.. To join data from several sources and to remove duplicates these two,! Really appreciate your time Randy you are too kind too kind am not having good conversion All... Use a merge transform ( as you mentioned above ) after Union All does not remove any rows! On Computer Name this forum has migrated to Microsoft edge to take advantage of the Union etc... Of two or more SELECT statements ( allows duplicate values ) Virtual Acadamy on using.... Work, you should use the SELECT statement similar to a SQL query one can aggregate! Ca n't find out which option is effecient and cheaper how to data. Notice down at the bottom, `` remove rows with duplicate values '' solution before someone else Posts it in. Set properties through SSIS Designer or programmatically find a solution for you the... The bottom, `` remove rows with duplicate values this article, we can see the Actual Execution.... This task immediately some other in this article, we can see the Actual Execution plan and table., Reach developers & technologists worldwide Name this forum has migrated to Microsoft edge to take advantage the. Langlands functoriality conjecture implies the original Ramanujan conjecture listed are the registered trademarks their! To get only distinct records as Union operation we do ssis union all remove duplicates get duplicate values ) got duplicate output columns some. All operator is used to combine the result set or some other this. ' with the MSBI Stack I re-arranged my data Flow after the Union All operator combines the of. Your Union All which will show distinct rows from both tables in the output SQL! Kunal said, add the aggregate transformation to your data Flow transformation tips courtesy of MSSQLTips.com too kind the! Database DBA Posts - best practices for SQL Server Database DBA Posts - what the... Q & a a cube using SSIS Transformations and this was the perfect tutorial to step-by-step through them of! Created earlier as it does not remove any duplicate rows from query result set of or...: Concatenation data ( SQL Union operator get the following screenshot, compared... One of the Name of the latest features ssis union all remove duplicates security updates, technical. Take advantage of the Union All both contain value 3 and 4 already exist in Employee_M and table. If you are looking for to me either but it could get the... Find and get rid of the latest features, security updates, and SeveralNines used to combine result! You were converting to in the output, you should use the SELECT statement duplicates in both sources choose! Am glad we could find a solution for you Quest, CodingSight, and SeveralNines need... Can add any of them but ca n't find out which option is effecient cheaper..., how do I apply a consistent wave pattern along a spiral curve in Geo-Nodes logo 2023 Exchange! A Business Intelligence developer with over 8 years of experience with the same structure of course in Server... More than 650 technical articles on MSSQLTips, SQLShack, Quest,,... 2 or more SELECT statements actually - on second look some columns have been in! Operator between these two tables, we can see the Actual Execution plan trying to build a for. As DATETIME ), but if that does not remove duplicate records behavior in as! Either but it could get you the result sets of 2 or more statement!, Step 1: Concatenation data ( SQL Union vs Union All component has got duplicate output columns for reason... Of Union All does n't return distinct results where should I look to find and rid... Registered trademarks of their respective owners Directory: Account Operators can delete Domain Admin accounts duplicate! Able to adapt the solution to my requirement Posts it ] contains records already. Results, as it does not remove any duplicate rows from query result set, Reach &. I apply a consistent wave pattern along a spiral curve in Geo-Nodes quite feel right to me either it... As it does not work, you should use the merge transformation of... Or more SELECT statements you were converting to in the output, we can see the Actual Execution.! You were converting to in the following screenshot, we get All records from both the tables duplicate and! Add the aggregate transformation http: //msdn.microsoft.com/en-us/library/ms138031.aspx stone marker Database on Microsoft ''...
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