Microsoft SQL Fatal Error 7105 – Unable To Access LOB

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MS SQL Server is a relational database system developed by Microsoft. This software has the capability to store and retrieve records accordingly. Today, many versions related to SQL databases are available online. Every software’s main purpose is to store, retrieve data, and the ability to perform multiple other tasks. Here, we are going to discuss how to solve the most possible error that can occur by only searching for a query that is SQL ERROR 7105.

Causes that can lead to Error 7105:

An error occurs when a user searches for the query which is unable to access the LOB(Large Object) data that refers to in the row of a page in the database. The complete error may look like the following:

  1. Database corruption is a common problem that lies by default in a database page and the LOB page structures of the database page reference itself.
  2. Searching for query ‘READ UNCOMMITTED ISOLATION LEVEL ‘or the ‘NOLOCK’ mostly indicates the error.
  3. The complication is in-built within the SQL Server Engine that results in search failure.

How the Error message might appear to you:

“Msg 7105, Level 22, State 6, Line 1
Database ID 11, Page (255:177), slot 1 for LOB data type node doesn’t exist. This usually is caused by the transactions that can read uncommitted data on a data page. Run DBCC CHECKTABLE.”

As you can see in the highlighted text, the severity level is described as 22 (High range). Hence, considering the severity level the connection to the server gets disconnected.

How to fix SQL Error 7105 by manual approach:

Method 1: For Database Corruption

First, run DBCC CHECKDB on the database or DBCC CHECKTABLE on the table where the issue was detected.

  • The ID will be given in the message.
  • To find out the exact location of the error in the table without running DBCC CHECKDB. You will need to look for the tables that were used during the query search.
  • You can also use ‘SQL Profiler’ to find the exact problem in the query.
  • On the contrary, using SQL Server 2008 and SQL Server 2008 R2 you might be able to find out the query using the system_health Extended Events session.
  • In any database that has a consistency issue, you can rectify these errors by restoring them with a backup that does not carry this problem.
  • Moreover, if you are unable to restore by performing a backup. Follow the procedure for DBCC CHECKDB or DBCC CHECKTABLE to repair these errors.

Method 2: Restore from the backup file

    • Restore the selected database by clicking on Database -> Tasks -> Restore -> Database.
    • Select the backup file and open it by clicking the OK button.
    • Now, you can see the Execution Process starting on your display screen. Also, you can wait for the process completion.
    • After the completion of the backup, you will receive a restoration message on your window and then click OK on the dialogue box.

Limitation of using the manual method:
Using the manual method may result in loss of data. You might also lose data integrity, so you must keep a backup before performing the above procedure.

Automated Tool to resolve Error 7105:

If the above manual method doesn’t work then you can try the automated tool to solve the ERROR 7105. Manual methods are generally used when there is minimal issue solving. One such method available is SQL Database Recovery that can help resolve the error issues you are facing while running a query. The utility claims in recovering deleted data, compatible with windows versions, and previewing data.


A user can face SQL errors that are technical or manual. The way to solve those errors is the key that can regain the authenticity of your data. Errors occurring in any database is the worst scenario that can occur to anyone. It increases the risk of losing the data and can make a user panic. Above we have discussed how SQL ERROR 7105 can be resolved and what can be the probable causes of it. I hope you will find this blog useful in solving irregular errors.

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