SQL Server is a relational database management system from Microsoft.

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Database Object That Reads From Two Tables and Writes to One

I am updating a database design that must be compatible with old and new applications. My goal is to make a design change which minimizes impact on the existing code. The Design Change Currently our ...
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44 views

SQL query - split and run parallely?

I have a master table T1 which has 1000 records and a ColRef a key column. There are lots other tables all linked by ColRef. I have a Stored procedure which takes few hours to process. I want to ...
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45 views

Using Entity Framework as substitute for SSIS, SSAS and SSRS

At the moment I have three different sources where my data are. 1. A Dataprovider, 2. inhouse access DB and 3. Salesforce. Now I want to build a datawarehouse (using ms software) where I want to store ...
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Better dynamic user permissions

I support an Internal ERP system and an external Reporting/Dashboard that our customers use that both use the same database. Internal normal application users can control what customers can access ...
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26 views

How to use a relative path in sqlcmd script

Can someone tell me how to swap this absolute path with a relative one for my sqlcmd upgrade script? -- how can I get rid of the following absolute path? :SETVAR ScriptDir "C:\absolutePath\" ...
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SQL Server - Fetch data

Project Case: Send sms communication on Parent's mobile number on the birthday of either Student or Parent for ACTIVE courses. Data Model: Following four tables are in picture here. Course Role table ...
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SQL Server - Sum Until Threshold Reached [migrated]

I have a SQL Server database with shift worked information for each employee. The main table (called "shift_worked") is structured like the following: id employee_id period day hours 1 ...
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44 views

SQL - Locating closest value in a set

I have a table that contains the percentiles from a reference data set. CREATE TABLE [Core].[RiskFactor]( [SpecialtyCode] [char](2) NOT NULL, [RiskCategoryId] [int] NOT NULL, [Percentile] [tinyint] ...
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45 views

How to model the database tables for calculating on peak and off peak usage data

I am using MS Sql Server and my system contains power usage data in one table as timestamp and values for KW(two columns). This data is collected at 1 hour interval. At the end of the month I need to ...
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25 views

Offsetting high usage in a multi-tenant database environment?

I'm writing a research essay over distributed cloud-based systems, and one of the topics that I'm trying to touch on is potential solutions to high database utilization in a single-database ...
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4answers
92 views

How does a query execution plan affect query execution?

I have read some articles on SQL Server query optimization. The point I get is SQL Server generates a query execution plan for each stored procedure when it's executed for the first time. Those ...
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sql server driver scripts seem awkward, is there a better way to batch sql scripts?

I've been writing 'driver' sql scripts (is that the correct name?) to run multiple sql 'sub' scripts in order, writing errors to log file etc. My Oracle version seems to be more or less ok, but my sql ...
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52 views

ODBC 3 Multiple Statements vs Multiple Connections

So right now I have a single thread to handle all the requests for the database. Let's say I have 400 requests per second for logins / logouts / other stuff, and 400 requests per second which are only ...
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180 views

Use of booleans in a database

I'm using Visual Studio 2013, .Net 4.5 and SQL Management Studio 2012. I have a table that tracks offices in my database. On the application side there are a some display rules regarding the layout ...
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1answer
67 views

Why storing a payroll in XML type field would be good or bad

We have a PAYROLL issues by the client to make it dynamic i.e. to make the whole process computerized. It includes: Employees Allowances (Scale wise, which could change yearly or monthly or ...
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45 views

Authenticate to a SQL Server with Active Directory credentials from a UWP app

I've been tasked to design an application and a database to store information our company's electricians have measured on-site. We need to save in our database who exactly did which measurement. ...
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2answers
102 views

Why are triggers seen as a last resort to solve multiple paths in cascading deletes?

There is a problem using ON DELETE CASCADE on foreign keys in a SQL database if there are multiple paths from the root foreign key to the leaf. The way around this seems to be to replace the ON DELETE ...
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2answers
79 views

can a single SQL Server connection be shared among tasks executed in parallel

Can a single SQL Server connection be shared among tasks executing in parallel? Each task would dequeue an item from a ParallelQueue, instantiate a SqlClient command, and insert a row into the table. ...
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71 views

Migrating MYSQL functions and stored procedures to SQL Server

The company i'm working for is selling HRIS management software. It was built using ASP and mysql. But one of our client's demand is for it to be based on MS SQL Server. our team is made up mostly of ...
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1answer
44 views

Questions about developing for azure

We currently have a .Net MVC web app with a SQL server back-end database and two web services that perform periodically some computing tasks in the database. I am thinking of packaging this app for ...
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1answer
543 views

Best way to get push notifications to server from ms sql database

I partially found solution to my question but I'm not really satisfied with the result. My application consists of ASP.NET MVC + MS SQL Server. The case is as follows: External app saves data ...
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1answer
77 views

How can we rollback a database synchronized over multiple systems?

On a mobile device, a set of operations has been saved in the local DB with a wrong date (because the system date was set in the future). Then the device regularly doing synchronisation with a server ...
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1answer
143 views

Create an item in two different table with auto-increment C# SQL [closed]

First of all, let me apologize because I know my question will be very confusing since my English is pretty bad. I am working on a project for a company, mainly create a system to take care for ...
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1answer
47 views

Adding a complex check constraint

I am working on a table that has a compound primary key that includes a date. Faculty PersonId StartDate EndDate Title .... ------------------------------------------------- I will add a ...
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2answers
177 views

One wide table or multiple themed tables?

I'm trying to design a database for a simple text based game where the player characters have a large number of statistics that I want to track. Currently I have a few groups of related statistics, ...
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2answers
81 views

Stored Procedure performance

I'm working on upgrading an application written by a former developer at my work and I've been converting all the SQL queries in the code into Stored Procedures. I'm doing this with the idea that it ...
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1answer
55 views

MS SQL Server Cell level Encryption options

Recently, i got the task of doing some research into the data encryption at the cell level. I tried using the Symmetric key (by passphrase) & second option i took is Symmetric key (by ...
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69 views

SQL Table With A Call To Action?

This is all done in Microsoft Access 2007 and SQL Server. We are creating a way for our users to quickly make notes on a customer. These quick-notes will contain tags that will prompt the user for ...
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1answer
313 views

Multi-tenant database design

My boss is currently working on a database design for a multi-tenant capable ERP/CRM system, which will have a Sql Server backend. Some key points of the design: A server instance will host a ...
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3answers
324 views

Why does databases use text? [closed]

This might be a little dumb question but why do we save text in the db instead of something smaller? Couldn't there be some other way to store data in the db like in a compressed form, and then have ...
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148 views

Optional text qualifier in CSV file as input to SSIS package

I receive several CSV files each quarter to process through an SSIS package, and the formatting is inconsistent. This quarter, I encountered what I term optional text qualifiers--text qualifer of ...
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1answer
16 views

Syncing graph of data to other database (like data)

Switching to new system and need to keep old data going for some time. So, we need to update old database with data when new system being updated. It's a transactional data, like orders/shipments. ...
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1answer
369 views

Connect to MS SQL database from client side [closed]

I had a software that was written on VB .Net and used Crystal Report to print out reports. It was a pain to maintain in my case, so I want to move the report to webpage version. I did some ...
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1answer
120 views

Is it a good practice to write distinct queries in a single stored procedure based on input parameters

I am going through the stored procedures written throughout our project and see that multiple distinct queries are written inside a single stored procedure and are called by passing different values ...
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215 views

Using auto-increment clustered key and guid primary key together

My boss is the db administrator in a new software project and he came up with that design where every table will have both a auto-increment clustered key and a guid primary key (or possibly composite ...
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187 views

Caching query results vs Querying each time (finding a middle ground)

This is kind of an expansion on a previously asked question Some background info: Querying Over 5,000 items from SQL database that eventually get sorted into a list depending on who the user ...
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1answer
106 views

Knowing when a SQL table is done updating before Querying

I am using a self hosted windows service WEB API as the layer between my Windows 8 App and a SQL Server Database because Windows 8 apps can't directly connect to SQL server like win forms or pretty ...
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2answers
782 views

.NET Why should I use DAL over direct database access

Yesterday on one of SO chats I've been told I should never connect to database directly from the application and rather use DAL. I've been told that: 1. Using something in the middle should improve ...
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1answer
123 views

SQL - Designing a Threshold value table

I need to design an SQL table to be used for "threshold" or special values, which in general would have the following properties: - key - value - comparer (less than and greater than as a start, ...
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1k views

A CLR SQL Server Stored Procedure calling an ASP.NET Web API

We are developing a big system with SQL Server database, ASP.NET Web API 2.2 services and another external services. We need to load more data on a table while we process the current data on it. To ...
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3answers
731 views

Enterprise software: Where should the code go? [duplicate]

I recently went for an interview with a software company that claims to write enterprise level software. During the interview, the interviewer remarked that its better to use the database simply to ...
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2answers
404 views

What do I need for a database server for Mobile-Apps? [closed]

I'm struggling getting my head around writing a server for a mobile app. The app is quite simple and would manly rely on geographic data and some other basic stuff liker users etc. nothing special ...
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129 views

To convert to accurate data types or maintain default type of string

Scenario: I have a web application that records and checks data against two temp tables (1 table being a temp source and the other being a destination for the application). These temp tables are ...
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2answers
299 views

How do I do SQL Server mapping with a new Desktop application written in C#? [closed]

In 2 weeks I will be starting a new job as a software developer in a company that currently does not employ any professional programmers. My first task will be to rewrite a Excel/VBA application in ...
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2answers
4k views

NoSQL within SQL Server

This question is not about the difference between SQL and NoSQL. I am looking for some rationale for something that really does not make sense to me at the moment (maybe because of my lack of ...
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2answers
168 views

How to infer the result of a query?

To understand what a query does, I have always thought the following is the procedure on evaluating a query: Form the table as specified in the FROM clause. Pick the rows from that table as ...
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1answer
431 views

Portable Data in C# App

I have developed a C# front end app for management of an SQL Database for the purposes of document control. The project this database is for has several consultants and a client spread in a variety ...
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1answer
368 views

Is a series of OR or a single IN SQL statement better?

I'm using MS SQL 2008 R2. I have been using a series of OR and have an issue where my app periodically give the following error: Exception message: Timeout expired. The timeout period elapsed prior ...
2
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1answer
1k views

Git workflow for Microsoft SQL Stack

My team of developers are currently working at a client who has required us to move away from SVN and begin using their native workflow program. (Source tree by Atlassian). We are data warehouse ...
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3answers
218 views

Updating particular properties of EF objects every X amount of days in MVC

I'm building an MVC ASP.NET IMDb-like website which presents various information about movies to users, relying on 3rd party APIs to (initially) fetch movie info. The IDs representing each movie on ...