Production Database Services
We work with your team to provide comprehensive support for your production infrastructure. Our dedicated support specialists perform work within a set response time tailored to your company’s needs. Typical support activities include: availability monitoring; proactive notification; trend analysis; performance tuning and backup and recovery support.
Database Development Support
Our support specialists assist your company in building an effective, usable database environment to support business applications. Typical support includes data modeling; database design; normalization testing; data/application migration; SQL tuning and end user/application developer support.
Operating Systems Support
We have the resources to support your operating system environment to improve your businesses’ efficiency, responsiveness and cost effectiveness. We provide installation, tuning, patching, cloning, updates, upgrades, monitoring and system availability.
What is a data base:
A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. In one view, databases can be classified according to types of content: bibliographic, full-text, numeric, and images.
In computing, databases are sometimes classified according to their organizational approaches. The most prevalent approach is the relational database, a tabular database in which data is defined so that it can be reorganized and accessed in a number of different ways. A distributed database is one that can be dispersed or replicated among different points in a network. An object-oriented programming database is one that is congruent with the data defined in object classes and subclasses.
As one of the oldest components associated with computers, the database management system (DBMS), is a computer software program that is designed as the means of managing all databases that are currently installed on a system hard drive or network. Different types of database management systems exist, with some of them designed for the oversight and proper control of databases that are configured for specific purposes. Here are some examples of the various incarnations of DBMS technology that are currently in use, and some of the basic elements that are parts of DBMS software applications.
In database management system (DBMS), data files are the files that store the database information, whereas other files, such as index files and data dictionaries, store administrative information, known as metadata.
Advantages of database:
Database approach came into existence due to the bottlenecks of file processing system. In the database approach, the data is stored at a central location and is shared among multiple users. Thus, the main advantage of DBMS is centralized data management. The centralized nature of database system provides several advantages, which overcome the limitations of the conventional file processing system. These advantages are listed here.
The data stored in the database can be shared among multiple users or application programs. Moreover, new applications can be developed to use the same stored data. Due to shared data, it is possible to satisfy the data requirements of the new applications without having to create any additional data or with minimal modification.
Backup and recovery:
The DBMS provides backup and recovery subsystem that is responsible for recovery from hardware and software failures. For example, if the failure occurs in between the transaction, the DBMS recovery subsystem either reverts back the database to the state which existed prior to the start of the transaction or resumes the transaction from the point it was interrupted so that its complete effect can be recorded in the database.
Controlled data redundancy:
During database design, various files are integrated and each logical data item is stored at central location. This eliminates replicating the data item in different files, and ensures consistency and saves the storage space. Note that the redundancy in the database systems cannot be eliminated completely as there could be some performance and technical reasons for having some amount of redundancy. However, the DBMS should be capable of controlling this redundancy in order to avoid data inconsistencies.
Ease of application development:
The application programmer needs to develop the application programs according to the users’ needs. The other issues like concurrent access, security, data integrity, etc., are handled by the DBMS itself. This makes the application development an easier task.
Multiple user interfaces:
In order to meet the needs of various users having different technical knowledge, DBMS provides different types of interfaces such as query languages, application program interfaces, and graphical user interfaces (GUI) that include forms-style and menu-driven interfaces. A form-style interface displays a form to each user and user interacts using these forms. In menu-driven interface, the user interaction is through lists of options known as menus.
Enforcing data integrity:
In database approach, enforcing data integrity is much easier. Various integrity constraints are identified by database designer during database design. Some of these data integrity constraints can be enforced automatically by the DBMS, and others may have to be checked by the application programs.
Since the data is stored centrally, enforcing security constraints is much easier. The DBMS ensures that the only means of access to the database is through an authorized channel. Hence, data security checks can be carried out whenever access is attempted to sensitive data. To ensure security, a DBMS provides security tools such as user codes and passwords. Different checks can be established for each type of access (addition, modification, deletion, etc.) to each piece of information in the database.