Relational database management system(rdbms)
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A Relational Database Management System (RDBMS) allows for the creation, updating, and administration of databases using Structured Query Language (SQL). Developed by E.F. Codd in the 1970s, RDBMS organizes data in tables with relationships between them, offering advantages such as data integrity and multi-user access, though it also has drawbacks including high licensing costs and the need for specialized training. Popular examples include Oracle, IBM's DB2, and Microsoft SQL Server.
Relational database management system(rdbms)
- 2. 2 A relational database management system (RDBMS) is a program that lets us create, update, and administer a relational database” Most commercial RDBMS's use the Structured Query Language (SQL) to access the database.
- 3. 3 RDBMS Relational database management system. Designed specifically for Relational databases. Relational database: stores data in a structured format, using rows and columns Represent data as two- dimensional table(relations)
- 4. 4 Data is stored in the form of tables and there is a relationship between these tables Most popular RDBMS are: MS SQL Server DB2, Oracle MySQL Rows are commonly referred to as records, or in very technical terms, as tuples Each table contains records of a particular type. Each record type defines a fixed number of fields, or attributes. The columns of the table correspond to the attributes of the record types.
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- 7. 7 BRIEF HISTORY AND INTRODUCTION Invented by E. F. Codd at IBM in 1970s The leading RDBMS products are Oracle, IBM's DB2 and Microsoft's SQL Server Microsoft SQL Server 2008 is a popular example of a relational database RDBMS may be a DBMS in which data is stored in the form of tables and the relationship among the data is also stored in the form of tables
- 8. 8 ADVANTAGES Easy to use and secured in nature. The data manipulation can be done. It limits replication of the data. It offers better data integrity. It provides better physical data independence. It offers logical database independence i.e. data can be viewed in different ways by the different users.
- 9. 9 Its fast and Accurate Standard way to store data on permanent basis Extraction of data is done using SQL It provides better backup and recovery procedures. Multiple users can access the database which is not possible in DBMS
- 10. 10 DISADVANTAGES Licenses are expensive Need software and hardware (as it is heavy) Need professionals to deal with it Proper training is required
- 11. 11 THANK YOU