{"id":8111,"date":"2019-10-08T23:12:08","date_gmt":"2019-10-08T23:12:08","guid":{"rendered":"https:\/\/zappysys.com\/blog\/?p=8111"},"modified":"2026-04-16T21:54:16","modified_gmt":"2026-04-16T21:54:16","slug":"detect-missing-columns-in-ssis","status":"publish","type":"post","link":"https:\/\/zappysys.com\/blog\/detect-missing-columns-in-ssis\/","title":{"rendered":"How to detect missing columns in SSIS"},"content":{"rendered":"

How to detect extra columns or missing columns<\/h2>\n

\"ssisSometimes, we need to validate the input columns to check for extra or missing columns in SSIS. ZappySys includes some pretty nice tools, but some of them cannot check the required values. To fix that problem, you can complement these tools with our Regular Expression Parser Task.<\/p>\n

We will use Regular Expressions to validate the columns. For example, we want to check that the file has 3 columns with specific names, if it contains extra columns or there are missing some columns, we want to send an error. We will show you how to do this.<\/p>\n

We will be using this\u00a0ZappySys SSIS PowerPack<\/a>\u00a0component to make things work:
\n

\n\n\n\n

\n\"SSIS<\/a><\/td>\n		SSIS Regex Task
\n<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Prerequisites<\/span><\/h2>\r\nBefore we perform the steps listed in this article, you will need to make sure the following prerequisites are met:\r\n
    \r\n \t
  1. SSIS<\/abbr> designer installed.\u00a0Sometimes it is referred to as BIDS<\/abbr> or SSDT<\/abbr> (download it from the Microsoft site<\/a>).<\/li>\r\n \t
  2. Basic knowledge of SSIS package\u00a0development using\u00a0Microsoft SQL Server Integration Services<\/em>.<\/li>\r\n \t
  3. Make sure\u00a0ZappySys SSIS PowerPack<\/a><\/span>\u00a0is installed (download it<\/a>, if you haven't already).<\/li>\r\n \t
  4. (Optional step<\/em>).<\/em>\u00a0Read this article<\/a>, if you are planning to deploy packages to a server and schedule their execution later.<\/li>\r\n<\/ol><\/div>\n

    Creating a CSV file<\/h2>\n
      \n
    1. To start, we will create a plain text or CSV file with some columns. Create a file named file.txt or any name of your preference.<\/li>\n
    2. Add data similar to the following:\n
      name,lastname,email\r\nClint,Eastwood,ceastwood@gmail.com\r\nCameron,Diaz,cdiaz@gmail.com<\/pre>\n<\/li>\n<\/ol>\n
      ZS Regular Expression Parser to detect missing columns in SSIS<\/h2>\n
        \n
      1. First, SSDT opens an SSIS project.<\/li>\n
      2. Now, it is time to use the ZS Regular Expression Parser.<\/li>\n
      3. Secondly, drag and drop the ZS Regular Expression in the design pane:\n
        \"Regex
        SSIS Regular Expression parser<\/p><\/div><\/li>\n
      4. In AccessMode<\/strong>, use Connection<\/strong> and create a new connection.<\/li>\n
      5. Select the file you created before. Click OK to save the configuration.\n
      6. Add the following expression to the Task and test it:\n
        ^name,lastname\\r\\n\r\n<\/pre>\n<\/li>\n
      7. In the previous scenario, the expression will fail because it is missing the email.\n
      8. Finally, the following Expression ^name,lastname,email\\r\\n<\/span>\u00a0\u00a0will pass, because the email is included.\n
        <\/div>\n
        \"\"<\/a><\/li>\n<\/ol>\n
        Conclusion<\/h2>\n
        In this article, we learned how to validate and check the columns in a file in ZappySys using the ZS Regular Expression Parser. In the example, we created an expression to detect an exact match of columns. It will raise an error if a failure occurs.<\/p>\n
        If you want to enjoy this and other ZappySys tools, you can download our\u00a0product here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
        How to detect extra columns or missing columns Sometimes, we need to validate the input columns to check for extra or missing columns in SSIS. ZappySys includes some pretty nice tools, but some of them cannot check the required values. To fix that problem, you can complement these tools with our Regular Expression Parser Task. […]<\/p>\n","protected":false},"author":5,"featured_media":3074,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[561,560,12],"yoast_head":"\r\nHow to detect missing columns in SSIS | ZappySys Blog<\/title>\r\n<meta name=\"description\" content=\"In this article, we will show how to detect missing columns in SSIS. 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