![System.Data.SqlClient.SqlException: Login failed for user 'IIS APPPOOL\DefaultAppPool' in IIS7 - ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview System.Data.SqlClient.SqlException: Login failed for user 'IIS APPPOOL\DefaultAppPool' in IIS7 - ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview](https://4.bp.blogspot.com/-dEo_1omOZxI/TdaciIotWwI/AAAAAAAAAiY/VrElCA2EhHE/s1600/Applicationfool.png)
System.Data.SqlClient.SqlException: Login failed for user 'IIS APPPOOL\DefaultAppPool' in IIS7 - ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview
![Import failed on table satrglog with error: System.Data.SqlClient.SqlException (0x80131904): Received an invalid column length from the bcp client for colid 2" when importing data (into SQL) using the Controller Data Migration Tool Import failed on table satrglog with error: System.Data.SqlClient.SqlException (0x80131904): Received an invalid column length from the bcp client for colid 2" when importing data (into SQL) using the Controller Data Migration Tool](https://www.ibm.com/support/pages/system/files/inline-images/image_4627.png)
Import failed on table satrglog with error: System.Data.SqlClient.SqlException (0x80131904): Received an invalid column length from the bcp client for colid 2" when importing data (into SQL) using the Controller Data Migration Tool
![System.Data.SqlClient.SqlException: 'An attempt to attach an auto-named database for file "X" failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.' - System.Data.SqlClient.SqlException: 'An attempt to attach an auto-named database for file "X" failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.' -](https://learn.microsoft.com/answers/storage/attachments/198389-image.png)
System.Data.SqlClient.SqlException: 'An attempt to attach an auto-named database for file "X" failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.' -
![Could not load file or assembly 'System.Data.SqlClient, Version=4.6.1.1, Culture=neutral | Chanmingman's Blog Could not load file or assembly 'System.Data.SqlClient, Version=4.6.1.1, Culture=neutral | Chanmingman's Blog](https://chanmingman.files.wordpress.com/2020/07/072620_1502_couldnotloa1.png)
Could not load file or assembly 'System.Data.SqlClient, Version=4.6.1.1, Culture=neutral | Chanmingman's Blog
![Vulnerability found affecting System.Data.SqlClient in Microsoft .Net (Framework, Core, 5/6) : r/programming Vulnerability found affecting System.Data.SqlClient in Microsoft .Net (Framework, Core, 5/6) : r/programming](https://external-preview.redd.it/vulnerability-found-affecting-system-data-sqlclient-in-v0-FS7Mx1ZQk9W4haSKp36dHjPnJrDaLopveIusgdNnwH4.jpg?auto=webp&s=c149497e4428e06a1dc67296f4077a853e721638)
Vulnerability found affecting System.Data.SqlClient in Microsoft .Net (Framework, Core, 5/6) : r/programming
![The type initializer for 'Microsoft.Data.SqlClient.SqlAuthenticationProviderManager' threw an exception. · Issue #1460 · dotnet/SqlClient · GitHub The type initializer for 'Microsoft.Data.SqlClient.SqlAuthenticationProviderManager' threw an exception. · Issue #1460 · dotnet/SqlClient · GitHub](https://user-images.githubusercontent.com/17305314/148857023-21a22652-225a-4cae-b438-635d9ce2b672.png)
The type initializer for 'Microsoft.Data.SqlClient.SqlAuthenticationProviderManager' threw an exception. · Issue #1460 · dotnet/SqlClient · GitHub
VS 2019 [RESOLVED] [Error]System.Data.SqlClient.SqlException: 'Incorrect syntax near the keyword 'BY'.'-VBForums
![System.Data.SqlClient.SqlError: The media loaded on X is formatted to support 1 media families, but 2 media families are expected according to the backup device specification | DBAtricksWorld.com System.Data.SqlClient.SqlError: The media loaded on X is formatted to support 1 media families, but 2 media families are expected according to the backup device specification | DBAtricksWorld.com](http://dbatricksworld.com/wp-content/uploads/2014/11/stripped.png)
System.Data.SqlClient.SqlError: The media loaded on X is formatted to support 1 media families, but 2 media families are expected according to the backup device specification | DBAtricksWorld.com
![c# - Exception thrown: 'System.Data.SqlClient.SqlException' in System.Data.dll when trying to make simple insertion into SQL Server database - Stack Overflow c# - Exception thrown: 'System.Data.SqlClient.SqlException' in System.Data.dll when trying to make simple insertion into SQL Server database - Stack Overflow](https://i.stack.imgur.com/JNJTO.png)
c# - Exception thrown: 'System.Data.SqlClient.SqlException' in System.Data.dll when trying to make simple insertion into SQL Server database - Stack Overflow
![System.Data.SqlClient throws a PlatformNotSupportedException - Scripting - RAGE Multiplayer Community System.Data.SqlClient throws a PlatformNotSupportedException - Scripting - RAGE Multiplayer Community](https://i.imgur.com/qcWmxgm.png)
System.Data.SqlClient throws a PlatformNotSupportedException - Scripting - RAGE Multiplayer Community
![System.Data.SqlClient.SqlException: 'Invalid column name 'CreatedOn'.' · Issue #1467 · smartstore/SmartStoreNET · GitHub System.Data.SqlClient.SqlException: 'Invalid column name 'CreatedOn'.' · Issue #1467 · smartstore/SmartStoreNET · GitHub](https://user-images.githubusercontent.com/6480047/97587083-492b6b00-19fb-11eb-8fb6-41e9db9eb177.png)
System.Data.SqlClient.SqlException: 'Invalid column name 'CreatedOn'.' · Issue #1467 · smartstore/SmartStoreNET · GitHub
![Unable to find a stable package System.Data.SqlClient with version (>= 4.6.1) · Issue #2575 · dotnet/core · GitHub Unable to find a stable package System.Data.SqlClient with version (>= 4.6.1) · Issue #2575 · dotnet/core · GitHub](https://user-images.githubusercontent.com/10506538/56148706-b255a580-5f5f-11e9-8699-c99ff019bfad.png)
Unable to find a stable package System.Data.SqlClient with version (>= 4.6.1) · Issue #2575 · dotnet/core · GitHub
![System.PlatformNotSupportedException: 'System.Data.SqlClient is not supported on this platform.' · Issue #289 · dotnet/SqlClient · GitHub System.PlatformNotSupportedException: 'System.Data.SqlClient is not supported on this platform.' · Issue #289 · dotnet/SqlClient · GitHub](https://user-images.githubusercontent.com/57915340/69759528-5592ae00-1130-11ea-995c-85e52d50e933.png)