Databases: SQL, Oracle, SQL Server, My SQL, MS Access
A database is a structured collection of data. The data are typically organized to model relevant aspects of reality, in a way that supports processes requiring this information. A database is designed for a business model or an independent professional working as freelancer. It is basically a collection of information organized in such a way that a computer program can quickly select desired pieces of data. We can see database as an electronic filing system. Traditional databases are organized by fields, files, and records. A field is a single piece of information, a record is one complete set of fields, and a file is a collection of records. To access information from a database, we need a database management system (DBMS). This is a collection of programs that enables you to enter, organize, and select data in a database. The known DBMSs include Oracle, SQL, SQL Server, My SQL, and MS Access etc. A database is not generally portable across different DBMSs but different DBMSs can inter-operate to some degree by using standards like SQL and ODBS together to support a single application built over more than one database. A DBMS also needs to provide effective run-time execution to properly support as many database end-users as needed. The DBMS is an important topic in any computer related field whether it is in engineering or any diploma or degree in computers. The database is effectively used in many fields and now due to advancement in IT field there are numerous DBMSs which are used for various purposes.
So for a computer science student it is required that he/she should have a vast knowledge about DBMSs. Today there are many online tutoring websites which are providing efficient help to students regarding their doubts or problems related to any topic in DBMS. One of the famous online tutoring website is the – Assignment Help that provide a team of tutors which are very beneficial for students regarding their academic doubts. These tutors are highly qualified and are from different parts of the world like US, UK, Australia, and London etc. These online tutors are well experienced and had undergone through months of training in online tutoring. They have their masters and PHD degree in computer science and many of the tutors are computer engineers by profession. They pride in providing quality help to students to improve their academic performance and achieve better grades. These online tutoring websites are easy to access and quite affordable for everyone. Students can access them from their home, school or college library and even from their smart phones. It is very cost effective and also provides suitable discounts to the needy students. These online tutors are available around the clock and that to live 24*7. They provide online tutorials and sessions for better understanding of the concepts and for clarifying their doubts. They also provide free practice sheets for evaluating student’s performance. These online tutoring websites play a major role in all around development of students whether it is academically or their performance in any entrance examination.