C# is a general-purpose, managed, garbage-collected, object-oriented programming language created by Microsoft.

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16
votes
3answers
521 views

How can I guarantee that inserts to SQL Server 2008 R2 are cached in RAM first?

Imagine a stream of data that is "bursty", i.e. it could have 10,000 events arrive very quickly, followed by nothing for a minute. Your expert advice: How can I write the C# insert code for SQL ...
16
votes
3answers
809 views

Setting up a central CLR stored procedure / function respository library for internal stored procs in other databases to use?

I would like to use code that I developed in C# CLR to be used in all of the databases on the system so that I don't have to set each to trustworthy and turn CLR on and keep a bunch of the same code ...
10
votes
3answers
8k views

3rd party dll in SQL Server CLR

I need to use a third party DLL in a trigger c# code in SQL Server CLR But when I try to add reference it just shows some DLLs from SQL Server. How can I add my third party dll to SQL Server?
8
votes
2answers
2k views

how will nvarchar(max) store data in database will it be fast if some data is less then 4000 characters?

I have to develop a CMS which will support two Language English, Arabic. This CMS will be a sort of Article Publishing site. While designing & analysis i found that some articles are more than ...
8
votes
3answers
2k views

How to insert a large amount of records to the database in a short time?

I have to insert a bunch of records(500,000) to the database at once, using the fastest way. I've tried inserting 1,700 records at once but it took twenty minutes!! I am using SQL-SERVER, and C#. ...
7
votes
4answers
14k views

Converting RTF in a text column to plain text in bulk

I have a legacy system with about 10 million rows in a table. In that table there is a column of type text, most of them are standard text but about 500 thousand rows have RTF markup in them. I need ...
6
votes
2answers
116 views

SQL server Database statistics degrading after execution

I have been experiencing timeouts while querying my SQL Server DB in particular one table. I tried updating the statistics and it fixed the performance issues for a couple of days. I started digging ...
5
votes
3answers
33k views

Login to SQL Server using Windows Authentication

I have an (.Net Console App) EXE which connects to various SQL databases using SQL server Authentication with appropriate credentials. Now there is change required in the EXE to use windows ...
5
votes
2answers
3k views

Looking for example design of using an SQL database as a queue for throttling web service requests of multiple users

I'm designing a system for multiple users to queue their requests to a web service which takes requests such as creating new entries, changing entries, requesting data. Many of the web service calls ...
5
votes
2answers
5k views

What server property makes TransactionScope escalating to MSDTC?

In our application we're using TransactionScope's. We're aiming to not use the MSDTC service because it's a lot slower than lightweight transactions. using (var transactionScope = new ...
5
votes
1answer
8k views

sql server , set N prefix as unicode for all queries by default

Is there any option in ms sql server which use N prefix for my database. There are many query in my application which non of them use N prefix for nvarchar fields , and now I have to set N for all of ...
5
votes
1answer
987 views

System.Data.Entity.Infrastructure.CommitFailedException: C# Multithreading & SQL Server 2012

We have a C# multi threaded (100 threads) program which reads the records from the DB and each thread picks up one record (one Entity Framework connection per thread) and update the a single DB table. ...
5
votes
2answers
454 views

Can CLR execution continue after 'THROW' is encountered in T-SQL?

I am calling a T-SQL stored procedure from a CLR stored procedure. and the THROW statement in T-SQL stops the execution of CLR without going into the catch block. Is there something I can change in my ...
5
votes
2answers
576 views

Best Practices for Creating and Deleting Records in MYSQL

I'm fairly new to working with databases, but I've currently have a webCrawler that I've written in C# using MYSQL database. The crawler is frequently writing and deleting records from the database ...
5
votes
1answer
1k views

Deadlocks in SQL Server

We're currently encountering a problem with out ASP.NET Application that results in deadlocks on the SQL Server database. A bit of background information I can provide is that we rely heavy on AJAX ...
5
votes
1answer
474 views

Design for file based with many events

I'm not a database guy but I need to design a database to store events for our application. Our client app connects to remote hardware and syncs count data. The count data are csv files split into ...
4
votes
1answer
1k views

Are we required to handle Transaction in C# Code as well as in Store procedure

Do we really require transaction handling in c# as well database store process both side C# Using(transaction with transaction scope) { Execute store proc; Transaction. Complete; } SQL ...
4
votes
3answers
4k views

How to import a varbinary(max) column with bulk import?

I have a varbinary(max) column that I need to bulk import. The data I'm putting into this column is a byte[] in C#. How do I format the data in the comma-delimited file used for bulk import? In ...
4
votes
2answers
63 views

Timeout expired SqlException for complex Procedure

I use Sql Server 2008 R2 and ASP.NET 4.5. Sometimes, I get this error when I executed a complex procedure: System.Data.SqlClient.SqlException Timeout expired. The timeout period elapsed ...
4
votes
2answers
145 views

why SELECT is still using CPU & DiskIO?

I have a large database, about 30GB. In order to delete some data from a table (most data is in this table, simply because the # of rows), I have to do delete in batch. However, if I delete in too ...
4
votes
2answers
2k views

Trace unclosed connections

I get timeout errors every couple of days or so between IIS7 and an SQL 2008 Server. The error message I get is: System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to ...
4
votes
1answer
1k views

InnoDB inserts 100 times slower than SQL Server inserts

I have a simple table with two columns: id (autonumber) and name (char(255). When I use C# to insert 100 records in a loop it takes about 30 milliseconds per insert. This is way too slow. So I ...
4
votes
1answer
753 views

Why does DataContext.SubmitChanges() Exist?

I'm not sure if this goes here or on Stack Overflow, but I figure someone here might know it. Why did the developers of LINQ decide that not only do you need ctx.InsertOnSubmit(item); but you also ...
4
votes
1answer
947 views

“A severe error occurred” - Login Failed (but only occasionally)

I'm using a C# application to execute a query against SQL Server. Here's the relavent portion of an exception I'm encountering once every twenty-four hours or so: System.Data.SqlClient.SqlException ...
4
votes
1answer
1k views

Daily database maintenance using SQL Server 2008 and a stored procedure

I have created a database maintenance plan using wizard though that link for SQL Server 2005. I have created a Maintenance Plan for SQL Server 2008 and it works fine. Now I required to complete the ...
3
votes
2answers
115 views

Table with only a single constant value?

I use C# entity framework code first. My knowledge regarding databases is almost nothing. I don't know if it's common or good practice so I wanted to ask you guys how I should do it. Say I have a ...
3
votes
1answer
97 views

DROP DATABASE statement cannot be used inside a user transaction

Not really sure if this question belongs here, but I hope someone could help me out. I've made integration tests going all the way down to the database (using mssql localDB). I want each test to run ...
3
votes
1answer
70 views

CLR Procedure with XML parameter returns Data at the root level is invalid. Line 1, position 1

I have following CLR stored procedure, which is throwing error on this command xmlDoc.LoadXml(inputXml); code public static int spGetTaxOfficeXML(SqlXml _inputXml) { // this ...
3
votes
2answers
552 views

Searching multiple tables in SQL

This question will involve some C# code but I hope that is fine, in the end it is the SQL that is the issue. (To see short question look at end of post) So I have a site, where you can add a site in ...
3
votes
1answer
2k views

MongoDB ReplicaSet reconfig when primary and majority don't exist

http://docs.mongodb.org/manual/tutorial/reconfigure-replica-set-with-unavailable-members/ Is there anyway to reconfigure a replica set in the event the primary as well as a majority of the servers ...
3
votes
3answers
10k views

Trying to connect to PostgreSQL with Entity Framework via Npgsql and C#

So, I'm new to databases and only have done a little with PostgreSQL before. I have C# (visual studio 2012) and have downloaded the Entity framework (6). I have also downloaded the latest Npgsql data ...
3
votes
1answer
1k views

“Thread was being aborted” error when inserting 25k rows

I need to store about 25k rows worth of data into a single table about once a week. To achieve this, I'm creating an object (created from parsing XML), and sending the data within that object to a ...
3
votes
1answer
1k views

LOAD DATA INFILE fatal error encountered

I use this query for loading sql data from my pc to localhost mysql database.(version 5.0.10 working witj XAMPP) The query is as below: cmd = new MySqlCommand("LOAD DATA LOCAL INFILE '" + filename + ...
3
votes
1answer
309 views

SSIS 2012: What rights are needed to connect to SSDB via DMO

I'm trying to connect to the SSDB catalog to execute a package using the .NET object model e.g. using Microsoft.SqlServer.Management.IntegrationServices; var sqlConn = new ...
3
votes
0answers
42 views

How to deal with Users Needing to Enter Mixed Data Types in MS SQL Server

I have a form in a C# application that I can't change with a data table bound to a query. The user enters a mark for a student's task or 'A' for absent. However, the person who designed this had the ...
3
votes
1answer
258 views

I can backup my SQL Server 2008 R2 but can't restore from the very same folder

I ran a backup into a folder. The Network Service has full control access to this folder. The backup process didn't work until I granted that account full control. I try to restore that same file but ...
2
votes
3answers
9k views

SQL Server 2012 - Insufficient memory to continue the execution of the program. (mscorlib)

I have a sql file, which is up to 180 Mb. When I try to open and execute it on Microsoft SQL Server Managment Studio 2012, I am getting this error. . What do do ? I researched on Google. And there ...
2
votes
1answer
1k views

Can geography datatype Lat/Long properties be returned using a view in SQL Server 2008?

Hopefully the question is fairly self-explanatory. I've been ferreting through the, what appears to be quite minimal/poor microsoft documentation regarding both views and geography datatypes in the ...
2
votes
2answers
853 views

Restoring database always throwing exception

I am trying to restore some database backup file into the same database. The .bak file is creating problem always. When I select the .bak file from a network drive like "\\TestPC\ShareFolder\test.bak" ...
2
votes
1answer
673 views

CLR TVF that calls web service is getting 401error

I am calling a web service from a CLR TVF in SQLServer 2008R2. On the IIS server this service has open permissions. When tested using GET or POST requests on a browser the web service works as ...
2
votes
1answer
979 views

Select columns dynamically from sql server table

Lets say I have a table that actually store record which looks like Create Table dbo.Info ( SN int primary key identity(1,1), FirstName nvarchar(50) not null, LastName nvarchar(50) not null, ...
2
votes
2answers
79 views

CLR/C# equivalent to XACT_STATE()

I am porting a set of T-SQL stored procedures to C#/CLR. In the T-SQL, we use XACT_STATE() to determine if an error requires rolling back to a savepoint or rolling back the transaction entirely. I ...
2
votes
2answers
268 views

How to handle too many inserts?

I have a database that is accessed from remote locations in the world with very long delays and poor transfer speeds. I currently transfer the data using a transaction since either all or no data ...
2
votes
1answer
938 views

How would you implement conversation groups/ locking for multiple users of a Service Broker Queue?

How do you implement conversation groups for multiple users using their own instance of the user applications but sending related messages to the service broker queue? Any good example of this kind ...
2
votes
1answer
87 views

SMO Copy database or remove all non-system database objects

I have c# SMO script which copy all database objects to existed empty database or to a new database. But this approach has two problems Existed database is not empty, manual intervention is needed. ...
2
votes
1answer
345 views

SQL Server : create dynamically queries to select all related data in DB based on entry table and ID

I'm tasked to create a SQL statement which will create (and run?) multiple other queries which will select all related data outgoing from an given ID (uniqueidentifier) and a given table name. It ...
2
votes
2answers
1k views

Sync many client database to one central database

We have client application which can be installed on local machine where users can work offline and create projects in it. This application is already developed. Now we need to create Admin ...
2
votes
1answer
305 views

What is happening with locks in my database?

I'm having some problems on my database. At any given time, I'm trying to execute an update with five records on my table, but this table is locked and I get a time out executing the query. I ...
2
votes
1answer
55 views

SQLCLR assembly throws error when multiple queries run simultaneously

I have been using SimMetrics to implement the QGramsDistance search in SQL Server. The SimMetrics is used as a SQL CLR assembly. The search results are promising and everything was well, until of ...
2
votes
0answers
115 views

MongoDB C# driver fails to reconnect after stepDown

I have an Elastic Beanstalk environment in AWS that constantly verifies the DB is accessible by querying the mongos for one document. We only speak to the DB routers and not to specific instances. ...