tagged [sqlconnection]

How to run multiple SQL commands in a single SQL connection?

How to run multiple SQL commands in a single SQL connection? I am creating a project in which I need to run 2-3 SQL commands in a single SQL connection. Here is the code I have written: ``` SqlConnect...

SQL Server returns error "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'." in Windows application

SQL Server returns error "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'." in Windows application An application that has been working without problem (and has not had any active development don...

17 Sep at 16:57

Most efficient way to test SQL connection string availibility

Most efficient way to test SQL connection string availibility I have this code down which I tried to make it Test SQL string connectivity, but I dont know how to handle the part with `connection.Open ...

25 Jul at 09:25

Connection.open for hangs indefinitely, no exception is thrown

Connection.open for hangs indefinitely, no exception is thrown When I try to do the following code, the program hangs indefinitely. I don't know why and there seems to be other unanswered topics on th...

NullReferenceException inside .NET code of SqlConnection.CacheConnectionStringProperties()

NullReferenceException inside .NET code of SqlConnection.CacheConnectionStringProperties() I'm facing really strange issue. Given the code below: ``` static void Main() { var c = new System.Data.Sql...

7 May at 08:20

Proper way to deal with database connectivity issue

Proper way to deal with database connectivity issue I getting below error on trying to connect with the database : > A network-related or instance-specific error occurred while establishing a connect...

.net SqlConnection not being closed even when within a using { }

.net SqlConnection not being closed even when within a using { } Please help! I have a WPF application which accesses a SQL Server 2005 database. The database is running locally on the machine the app...

6 Nov at 14:57

Is it better to execute many sql commands with one connection, or reconnect every time?

Is it better to execute many sql commands with one connection, or reconnect every time? Here's my test code, which seems to suggest that it's better to connect multiple times instead of connecting jus...

Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope Transaction?

Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope Transaction? What does it mean for an SqlConnection to be "enlisted" in a transaction? Does it simply...

Arithmetic overflow exception when opening SQL connection

Arithmetic overflow exception when opening SQL connection I got very weird `ArithmeticOverflowException` when opening an SQL connection to the underlying SQL database (stack trace included below). It ...