{"id":5318,"date":"2018-07-10T10:41:26","date_gmt":"2018-07-10T10:41:26","guid":{"rendered":"https:\/\/www.sysinfotools.com\/blog\/?p=5318"},"modified":"2025-04-08T13:03:00","modified_gmt":"2025-04-08T13:03:00","slug":"fix-microsoft-sql-error-3456","status":"publish","type":"post","link":"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/","title":{"rendered":"Microsoft SQL Error 3456 &#8211; Learn How to Troubleshoot It"},"content":{"rendered":"<div class=\"block_sum\"><strong>Summary:-<\/strong> Dealing with computer application errors is always frustrating, especially when you fail to fix them in time. Similarly, Microsoft SQL Server is also prone to errors. Being a server administrator (SA), you can encounter error messages while working on the database. One such common error is, &ldquo;Microsoft SQL Error 3456&rdquo;. Due to this SQL Server error, the MDF database usually goes to the suspect mode. This means the database has some corruption issues. So, here are the most possible ways to troubleshoot the SQL error 3456 by various manual troubleshooting. Also, for quick recovery, you can opt for <a href=\"https:\/\/www.sysinfotools.com\/recovery\/ms-sql-database-recovery.php\"><strong>SQL Database Recovery Tool<\/strong><\/a>, a reliable and secure tool.<\/p>\n<p class=\"blog-btn\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/SysInfoTools-MS-SQL-Database-Recovery.exe\"><i class=\"icon-windows\"><\/i>  Download<\/a>   <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/ms-sql-database-recovery.php\"><i class=\"icon icon-basket\"><\/i>  Buy Now<\/a><\/p>\n<\/div>\n<p>Microsoft SQL Server is a popular relational database management system (RDBMS) that has a primary function of storing and retrieving the data as requested by other software programs. But sometimes users may face troubles while working with SQL Server. During the usage of an MDF database, various problems may arise.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/div>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/#SQL_Error_3456\" >SQL Error 3456<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/#Basic_Troubleshooting_Tips_for_SQL_Error_3456\" >Basic Troubleshooting Tips for SQL Error 3456<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/#Use_SQL_Server_Management_Studio_SSMS\" >Use SQL Server Management Studio (SSMS)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/#Use_SQL_Repair_Tool\" >Use SQL Repair Tool<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SQL_Error_3456\"><\/span>SQL Error 3456<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Generally, SQL Server uses two databases: <strong>MDF<\/strong> is the primary one, and <strong>NDF<\/strong> is the secondary one. Any sort of issue in any of these two database files can lead to severe error messages.<em>&#8220;SQL error 3456&#8221;<\/em> is one such common error message which you may encounter.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/sql-studio.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/p>\n<p>The additional information in this error message tells you to either restore the database from a backup or repair it. But before that, you should know the reason responsible for this SQL Server error. If the master database or the MDF file has some corruption issues, you&#8217;re likely to encounter this SQL error 3456. If the transaction log gets corrupted due to any reason, this might be another reason for this SQL Server error. If you have the backup, you can restore the complete database from it.<\/p>\n<p>If you have the valid backup for the MDF database, you can simply run a restore statement. And to do that, you need to use the Microsoft SQL Server Management Studio. I&#8217;m showing you the steps below which you need to follow:<\/p>\n<ol>\n<li>First, run <strong>Microsoft SQL Server Management Studio<\/strong> as administrator.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/run-sql-studio.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<p>On the taskbar, click the <strong>View<\/strong> tab <strong>&gt; Object Explorer<\/strong>. Or simply press <strong>F8<\/strong> key.<\/p>\n<li>On the <strong><em>Object Explorer<\/em><\/strong> section, right-click the <strong>Databases<\/strong> in the tree-structure and click <strong>Restore Database&#8230;<\/strong> in the options.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/debug.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>On the <strong><em>Restore Database<\/em><\/strong> window, you need to define the backup source.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/restore-db.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<p>Click the <strong>Browse<\/strong> button in the device section.<\/p>\n<li>On the <strong><em>Select backup devices<\/em><\/strong> window, select the source device here.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/backup-device.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<p><strong>Note:<\/strong> If there&#8217;s no device available, click the <strong>Add<\/strong> button to add the device(s).<\/p>\n<li>Select the backup file and click <strong>OK<\/strong>.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/backup-file.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>Now select the destination and restore plan. Finally, click <strong>OK<\/strong>.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/select-desti.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<\/ol>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Basic_Troubleshooting_Tips_for_SQL_Error_3456\"><\/span>Basic Troubleshooting Tips for SQL Error 3456<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>But if there&#8217;s no backup available, you must repair MDF file. Generally, a professional SQL Repair tool is considered the best solution to repair MDF file. However, there are few DIY tricks which definitely deserve a try. So before you can get any 3rd party software, you should try the DIY tricks to repair MDF file.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_SQL_Server_Management_Studio_SSMS\"><\/span>Use SQL Server Management Studio (SSMS)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Microsoft SQL Server Management Studio can also be used to repair MDF database. How? On SQL Server Management Studio, you need to a run couple of <em>database console commands<\/em> (<strong>DBCC<\/strong>) to check the logical and physical integrity of all the database objects in a particular MDF file. <strong><em>DBCC DBREPAIR<\/em><\/strong> and <strong><em>DBCC CHECKDB<\/em><\/strong> are the commands you need use. Refer to this article to learn <strong><a href=\"https:\/\/www.sysinfotools.com\/blog\/free-methods-to-repair-mdf-files-in-sql-server\/\">how to repair MDF file<\/a><\/strong> by using the database console commands.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Use_SQL_Repair_Tool\"><\/span>Use SQL Repair Tool<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The DBCC commands can only fix minor corruption issues. In a case of severe corruption, you must switch to a professional solution like <strong>SQL Repair Tool<\/strong>. It can effortlessly repair MDF file and restore the database objects from it. Via this software, you can successfully repair both MDF and NDF files without requiring any prior technical expertise. Being an easy-to-use application, any technical or non-technical user can use this software with ease. It supports all popular versions of Microsoft SQL Server, including the latest 2017 (<strong>v14.0<\/strong>). It also helps to <a href=\"https:\/\/www.sysinfotools.com\/blog\/page-corruption-in-sql-server\/\"><strong>fix SQL Server Page Level Corruption error<\/strong><\/a>.<\/p>\n<p>Before purchasing the software, you must download its demo version for free evaluation. By using the demo version, you can repair MDF file and check the preview of your data which you can actually recover from it. And if you\u2019re satisfied with the results, then only you should purchase the licensed version.<\/p>\n<p>Below steps are mainly required to repair MDF file by using this SQL Repair tool:<\/p>\n<ol>\n<li>Launch SQL Repair tool on your system. Now click the <strong>Browse<\/strong> button to select the MDF file.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step1.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>Select the corrupt MDF file you want to repair. Click <strong>Open<\/strong> to confirm the file selection.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step2.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>Select the recovery mode: <strong><em>Standard<\/em><\/strong> or <strong><em>Advanced<\/em><\/strong>. Also, choose the collation option, i.e. either <strong><em>auto-detect<\/em><\/strong>, or define <strong><em>manually<\/em><\/strong>. Click <strong>OK<\/strong> to continue the process.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step3.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>The file scanning process is being conducted on your system. Please wait until it completes.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step4.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>Within a few seconds, the scanning process will be completed. Click <strong>OK<\/strong>.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step5.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>Now expand the data and its objects to check the preview of your data which you can actually recover.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step6.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<li>Select the database objects which you want to save, and click the <strong>Save<\/strong> button. Define the saving options and click <strong>OK<\/strong>.<\/br><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/step7.png\" alt=\"SQL Database Recovery Tool\" width=\"437\" height=\"300\"><\/li>\n<\/ol>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In this article, I\u2019ve shown you how to repair MDF file to troubleshoot SQL error 3456. And if you the backup, you can simply restore the database from it. When nothing works, you should always look forward to a professional solution like MDF Repair tool.<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;5318&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Microsoft SQL Error 3456 - Learn How to Troubleshoot It&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (1 vote)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Summary:- Dealing with computer application errors is always frustrating, especially when you fail to fix them in time. Similarly, Microsoft<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":5335,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[121],"tags":[1257,1255,1254,1256,1248,823],"class_list":["post-5318","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-backup-and-restore","tag-mdf-repair-tool-freeware","tag-repair-mdf-file","tag-sql-error-3456","tag-sql-repair-tool","tag-sql-server-error","tag-sql-server-management-studio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Microsoft SQL Error 3456 - Learn How to Troubleshoot It<\/title>\n<meta name=\"description\" content=\"In this very article, I&#039;m going to share the most possible ways to troubleshoot the Microsoft SQL error 3456.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microsoft SQL Error 3456 - Learn How to Troubleshoot It\" \/>\n<meta property=\"og:description\" content=\"In this very article, I&#039;m going to share the most possible ways to troubleshoot the Microsoft SQL error 3456.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/\" \/>\n<meta property=\"og:site_name\" content=\"SysinfoTools Tech Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sysinfotools\" \/>\n<meta property=\"article:published_time\" content=\"2018-07-10T10:41:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-08T13:03:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2018\/07\/SQL-Server-Database-Error-3456.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"698\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Simran Bhatia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Simran Bhatia\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-microsoft-sql-error-3456\/\"},\"author\":{\"name\":\"Simran Bhatia\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/#\/schema\/person\/0bc86a610ba204e43dcf67ac0c4f422a\"},\"headline\":\"Microsoft SQL Error 3456 &#8211; 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