I have a windows service which runs every 2 min and fetch some record from a table- Now some time due to excess record it takes time to fetch and transfer the record and 2nd thread starts in this situation the connection and data reader starts throwing exception : 1. some time the ...
[IO] How to - Delete a file, keeping data in the stream? [Out Of Memory Error] while handling 400MB XML file [Solved] C# write to file without extension [Solved] Error MSSQL connection only when run with .Net core on Linux [SQL Server Native Client 11.0]Connection is busy with r...
Data Reader is used to read the data from the data base. Here is a sample code which demonstrate the process using data reader Con = new SqlConnection("Server=(local)\\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI"); ...
This step-by-step article describes how to build a tab-delimited text file dynamically from a database. You can then open the file in Microsoft Excel. The sample code in this article demonstrates how to connect to a Microsoft SQL Server data...
Class ReturnReader { private SqlDataReader sqlDataReader = null; public SqlDataReader CreateReader() { SqlConnection con = new SqlConnection("SERVER=.;UID=Ashish;PWD=Ashish;DATABASE =NorthWind"); SqlCommand objCommand = new SqlCommand("SELECT FirstName, LAstName from Employees", con); ...
I assume the network buffers aren't big enough to hold 30MB of data, so what does .NET do here? Is the result of the SELECT squirreled away somewhere for the SQLDataReader to nibble off a row every time Read() advances the pointer? Or does it go back to the database?
Since you've submitted a parameterized query, there's nothing that SQL Server autoparameterization can do, and nothing that a database administrator can change in the server to fix this behavior. Using the FORCESEEK query hint as a last resort fails to produce a plan at all. When the ...
Learn more about how to deserialize instance data properties. You do this when you want to manually inspect the state of a persisted workflow instance.
“Unable to enlist in the transaction” with Oracle linked server from MS SQL Server [<Name of Missing Index, sysname,>] in non clustered index [Execute SQL Task] Error: The value type (__ComObject) can only be converted to variables of type Object. [ODBC Driver Manager] Data source nam...
SQLServer 中错误在SqlErrorCollection中捕获, SQL 存储过程使用严重级别为 11 通过 20 引发错误。 还要注意, 某些错误有严重度级别为 11 或更中止整个存储过程。 回到顶端 要求 以下列表概括了推荐硬件、 软件、 网络结构, 以及 ServicePack 所需: • ...