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

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16
votes
3answers
446 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 ...
15
votes
2answers
631 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 ...
9
votes
3answers
5k 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?
7
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 ...
7
votes
3answers
669 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
10k 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 ...
5
votes
2answers
3k 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
6k 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
912 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
396 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
3answers
19k 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 ...
4
votes
2answers
142 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
1answer
693 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 ...
3
votes
2answers
2k 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 ...
3
votes
1answer
340 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 ...
3
votes
2answers
1k 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 ...
3
votes
2answers
3k 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 ...
3
votes
2answers
226 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
917 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
519 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 ...
3
votes
1answer
775 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
589 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 ...
3
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
1answer
142 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 ...
3
votes
1answer
299 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. ...
3
votes
2answers
364 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 ...
2
votes
2answers
723 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
3answers
5k 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 ...
2
votes
1answer
592 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
126 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
672 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 ...
2
votes
1answer
673 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
115 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
74 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 ...
2
votes
0answers
195 views

Sleeping connections

I have a dedicated MySQL server(8GB) with following configuration. [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql lower_case_table_names = 1 ...
2
votes
0answers
256 views

Strugling with updating a cassandra row in FluentCassandra

I have this problem with using Fluent Cassandra in a test application. All I want to do is set the IsOnline field to true inside the SignIn method, but I keep getting the exception supercolumn ...
2
votes
0answers
337 views

going from heirarchical XML to heirarchical SQL tables then SQL to c# objects to go to user view, how should I store the data in the databases?

Hi I'm getting my data from a web service using their getData call and it comes in as fairly chunky heirarchical XML, first everything all at once, like <allData> <product1> ...
1
vote
2answers
625 views

Designing a database tables for the following scenario

I just got following entities Employee, Client and Company. Where Employee and Client have one to many relationship with Company ie A single employee may be mapped to attend to many companies and ...
1
vote
2answers
234 views

How to re-declare T-SQL variables if it already exist?

Background: I'm building a SQL command to be executed on the server which involves a lot of accessing store procedure and declaring variables which are used as input to other stored procedures. This ...
1
vote
3answers
545 views

What's the solution for corrupted MDF files?

We are working on an MDF file that has been corrupted, because a virus deleted 2 MB from the header of the file. We also have another backup of this MDF File from 3 months ago. Both MDF files have ...
1
vote
2answers
167 views

Dropping person while their connection sleeping in SQL Server

I have a C# application that communicates with SQL Server. When I try to drop a user that recently had a connection with SQL Server, it gives me an error that I can't delete them because they have ...
1
vote
1answer
121 views

SQL Server Specific term full text search is not working

I'm trying to perform an specific term full-text search in SQL Server. It looks like the way to do it is by wrapping the keywords in double quotes, which I'm doing in my app: Query = "\"" + ...
1
vote
1answer
8k views

How to make stored procedure with outputs OUT sys_refcursor, OUT varchar2, and OUT number, then use in c#.net app

What is the syntax for a stored procedure that outputs a refcursor, a varchar2, and a number? I would like to output all three in the result, for the purpose of displaying count, and a message which ...
1
vote
2answers
2k views

Installing SQL Server Express instance so common users can access

I need to install a SQL Server Express instance (as an admin) which can be later on read and modified by regular users. I run into http://msdn.microsoft.com/en-us/library/ms254504.aspx, and I'm ...
1
vote
4answers
137 views

Pros and cons of a particular DB design approach for single vs multiple tables

I just got a new project (in JAVA) where I am thinking of all the pros and cons of a particular DB design approach. Some pointers: Our app has many "content" entities like News, Blogs, CMS pages, ...
1
vote
1answer
203 views

Finding parameter names for binding stored procedure parameters

For unit testing purposes I am attempting to call the DBMS_OUTPUT.PUT_LINE procedure from c# using parameters that are bound by name. Since this DBMS_OUTPUT package seems to be a standard on Oracle ...
1
vote
1answer
135 views

How to deploy case-insensitive embedded firebird database?

I'm trying to find out how to create CI firebird embedded database. I've found (here) that there are some character sets each of them has one or many collations. So, UTF8 has UCS_BASIC, UNICODE and ...
1
vote
1answer
605 views

SSIS 2012 Ftp parallel/asynchronous multiple file download

Any help would be appreciated with either scenario. if Are there any settings available to download multiple files in parallel from an FTP server? else If not, I guess I'll just roll my own via ...
1
vote
1answer
803 views

Conditional Where Statement Involving a NULL value?

Trying to find a way to pass off a third value within a 'bit' field. I would like to be able to utilize NULL as a searchable value. As in 'True', 'False', or 'NULL', the only issue is I'm unsure how ...
1
vote
3answers
2k views

Local user login access in sql server 2008

I have a created a local user called 'MynetDB' with SQL Server Authentication (password) in SQL server 2008. Server roles is public and user mapping to 2 databases as db_owner and public. Status has ...