MySQL DBA Course

What Is a Database?

Over the years, the term database has been used to describe an assortment of products and systems that have included anything from a collection of files to a complex structure made up of user interfaces, data storage and access mechanisms, and client/server technologies. For example, a small company might store payroll records in individual files, while a regional electric company uses an integrated system to maintain records on all its customers; generate electric bills to those customers; and create reports that define power usage patterns, profit and loss statements, or changes in customer demographics. In both cases, the organizations might refer to each of their systems as databases.

Despite how a database is used, the amount of data that it stores, or the complexity of the data, a number of common elements define what a database is. At its simplest, a database is a collection of data that is usually related in some fashion. For instance, a database that a bookstore uses might contain information about authors, book titles, and publishers. Yet a database is more than simply a collection of related data. The data must be organized and classified in a structured format that is described by metadata, which is data that describes the data being stored. In other words, the metadata defines how the data is stored within the database. Together, the data and the metadata provide an environment that logically organizes the data in a way that can be efficiently maintained and accessed.

Database Management Systems

Most databases rely on a database management system to manage the data stored within the system’s databases and to make the data available to users who need access to specific types of information. A DBMS is made up of a comprehensive set of server and client tools that support various administrative and data-related tasks. For example, most DBMSs provide some type of client tool that allows you to interact directly with the data stored in a database.At the very least, a DBMS must store data and allow data to be retrieved and modified in a way that protects the data against operations that could corrupt or insert inconsistencies into the data. However, most systems provide many more capabilities. In general, nearly any comprehensive DBMS supports the following types of functionality:
Managing storage
Maintaining security
Maintaining metadata
Managing transactions
Supporting connectivity
Optimizing performance
Providing back-up and recovery mechanisms
Processing requests for data retrieval and modification

The extent to which a DBMS supports a particular functionality and the exact nature in which that functionality is implemented is specific to the DBMS. For any one system, you must refer to the product documentation to determine what and how specific functionality is implemented.

MySQL RDBMS

As database models evolved, so too did the DBMS products that supported the various types of databases. It’s not surprising, then, that if there are DBMSs, there are RDBMSs. MySQL is such as system,as are Oracle, DB2, SQL Server, and PostgreSQL. These products, like any DBMS, allow you to access and manipulate data within their databases, protect the data from corruption and inconsistencies, and maintain the metadata necessary to define the data being stored. The primary difference, then, between a DBMS and a RDBMS is that the latter is specific to relational databases. It supports not only the storage of data in table-like structures, but also the relationships between those tables.
Emerging as a major player in the RDBMS market is MySQL. As with other RDBMS products, MySQL provides you with a rich set of features that support a secure environment for storing, maintaining, and accessing data. MySQL is a fast, reliable, scalable alternative to many of the commercial RDBMSs available today.

The following list provides an overview of the important features found in MySQL:
❑ Scalability: MySQL can handle large databases, which has been demonstrated by its implementation in organizations such as Yahoo!, Cox Communications, Google, Cisco, Texas Instruments, UPS, Sabre Holdings, HP, and the Associated Press. Even NASA and the US Census Bureau have implemented MySQL solutions. According to the MySQL product documentation, some of the databases used by MySQL AB, the company that created MySQL, contain 50 million records,
and some MySQL users report that their databases contain 60,000 tables and 5 billion rows.
Portability: MySQL runs on an assortment of operating systems, including Unix, Linux, Windows, QS/2, Solaris, and MacOS. MySQL can also run on different architectures, ranging from low-end PCs to high-end mainframes.
Connectivity: MySQL is fully networked and supports TCP/IP sockets, Unix sockets, and named pipes. In addition, MySQL can be accessed from anywhere on the Internet, and multiple users can access a MySQL database simultaneously. MySQL also provides an assortment of application programming interfaces (APIs) to support connectivity from applications written in such languages as C, C++, Perl, PHP, Java, and Python.
Security: MySQL includes a powerful system to control access to data. The system uses a host- and user-based structure that controls who can access specific information and the level of access to that information. MySQL also supports the Secure Sockets Layer (SSL) protocol in order to allow encrypted connections.
Speed: MySQL was developed with speed in mind. The amount of time it takes a MySQL database to respond to a request for data is as fast as or faster than many commercial RDBMSs. The MySQL Web site (www.mysql.com) provides the results of numerous benchmark tests that demonstrate the fast results you receive with a MySQL implementation.
Ease of use: MySQL is simple to install and implement. A user can have a MySQL installation up and running within minutes after downloading the files. Even at an administrative level, MySQL is relatively easy to optimize, especially compared to other RDBMS products.
Open-source code: MySQL AB makes the MySQL source code available to everyone to download and use. The open-source philosophy allows a global audience to participate in the review, testing, and development of code. (See the Open-Source Movement section below for information about open-source technology.)

As you can see, MySQL can provide you with a fast, reliable solution to your database needs. Not only is it easy to use and implement, it offers the advantages and flexibility of an open-source technology. You can download the MySQL distribution files directly from the MySQL Web site, and start using the product immediately.

Here is what you will learn from MySQL Course?

• Database Design and Basics
• Security and Performance
• Basic and Advanced concepts of MySQL

Is this coaching right for you?

Any software professional who wants to make a career shift towards Web-based application development will be benefited from this course. Graduates who want to work on RDBMS can take advantage of this MySQL certification course.

Prerequisites for Mysql?

• Basics of RDBMS Knowledge

Scheduling Demo With Trainer:

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Course Finished Certificate :

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