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There are two database backup options you can set for the database. Full Recovery Model Simple Recovery Model Full recovery model allows you to restore your database to the last time a transaction was made to the database by using transaction logs. Simple recovery model only allows you to restore your database since the last... » read more
Full backup is a full copy of your entire data set. They are time-consuming and often require a lot of disk space. Differential backups only backup up the data that has changed since the last full backup. If you have a full backup on Sunday and differential backup every week day nights, you only need... » read more
Indexes are used to speed-up query processes in a database. They are similar to an index for a book. If you need to go to a particular chapter you can go to the index, find the page number of the chapter and go directly to the page. Database index works the same way. If you... » read more
Transactional Database Analytical Database OLTP OLAP Operational Systems Data Warehousing Original source of data Data comes from varies sources Large number of transactions. Low number of transaction. Very fast query processing Queries are often very complex and involve aggregations Detailed and current data, and schema is the entity model (usually 3NF) Aggregated, historical data, stored... » read more
Service oriented architecture (SOA) is a style of software design where services are provided to other applications or components through some kind of protocol over the network. Basic Principles of SOA Independent of vendors, products, and technologies. Represents a business activity with a specified outcome. Self-contained. Black box for consumer of the service. Loose coupling... » read more
Both SOAP and REST are web services that allows machine-to-machine communications. They are API that allow your application to interact with another application. SOAP (Simple Object Access Protocol) More structured. Only XML. More complexity and overhead in getting a connection setup. Comes with definitions that allows you to generate classes/objects in your application. Multiple application... » read more
These are a list of some common non-technical questions you should know before going into a job interview. Like taking an exam for college, it is good to be prepared and have an answer in mind just in case you are asked one of these questions. Why are you leaving your current company? What is... » read more
Here are some basic object oriented design concepts one should know or good to know before going into a technical interview for a software engineering position. Abstraction The act of representation a feature without describing the extract detail of the feature. Why it matters: “I don’t really care how you get the data. All I... » read more
DateTime.UtcNow tells you the date and time as it would be in Coordinated Universal Time, aka Greenwich Mean Time time zone. Basically the time as if you are in London England. DateTime.Now gives the date and time as it would appear to someone in your current locale. It is better to store DateTime.UtcNow then DateTime.Now... » read more
After you have point your custom domain to your Azure web app, user will get a “Not secure” warning every time they visit your web app. In order to get rid of this warning message, you need to register and install a valid SSL certificate. I use a vendor called SSLS.com to get a valid... » read more