Saturday the 23rd was extremely informative and full of practical staff. Head of .NET department, - Oleg Volkov, one of our most talented developers and lecturers, gave three classes on various but highly important topics.
The first class devoted to relational databases, general notion, design and transactions was designed for both groups - .NET and PHP. Watch videos right here. View his presentation and download plan of the class just below the video.
You can also download this pdf version and plan.
Here is a Home work task for Relational Databases for both groups.
The next two classes were made specifically for .NET group and devoted to SQL in ADO .NET.
Here is his presentation for you to view.
You can also download this pdf version and plan.
Here is a Home work task for SQL and ADO .NET for .NET group only.
It is worth pointing out that you can never get the full atmosphere of the class viewing the presentation. There’s always the most important component present in the room, - live contact and free discussion.
What about hw for php group?
Don't worry, there will be a homework on DB design for both groups. Just need time to do some of my actual work, sorry :p
Information technology and electronic systems, Binary Code Decimal (BCD) is a method of digital encoding of decimal numbers where each number represents its binary sequence. BCD, the number is usually represented by four bits, which tend to represent the decimal range 0 to 9 Other models are sometimes a little 'character or characters (for example, error or overflow). Unpacked BCD uses bytes that represent each number, while the packed or packed BCD port usually up to two numbers by using a four-bit bytes to represent the entire range of numbers.BCD main virtue is the easy conversion between the machine and the machine-readable formats, as well as more accurate representation of the machine amounts decimal format. Compared to a typical binary forms, BCD main disadvantages are the small increase in the complexity of circuits needed to perform simple mathematical calculations, and less efficient use of warehouse space.Though BCD is not as widely used as in the past, fixed point and decimal floating point formats are still important and still used in calculating financial, commercial and industrial, where subtle errors in the conversion and rounding inherent the binary floating point.