Explain Data Control Language (DCL) with Examples in DBMS: A Data Control Language (DCL) can be defined as a computer language that is used for controlling privilege in the database. The privileges are required for performing all the database operations, such as creating sequences, views or tables. It is a part of the Structured Query … Read more
Data Definition language(DDL) in DBMS with Examples: Data Definition Language can be defined as a standard for commands through which data structures are defined. It is a computer language that is used for creating and modifying structure of the database objects, such as schemas, tables, views, indexes, etc. Additionally, it assists in storing metadata details … Read more
SQL fully abbreviated as Structured Query Language can be defined as a domain-specific language used to manage the relational databases and performs different operations on the data stored in them. SQL is used as their standard database language by all the relational database management systems like Oracle, Informix, Posgres, SQL server, MySQL, MS Access, and … Read more
Joins are the foundation in SQL. The JOIN operation is essentially used to combine related tuples from two or more relations into a single type. In simple words, it is used to combine data or rows from two or more tables based on the known common attribute that has similar values. You might be aware … Read more
12 Ef CODD’S RULES IN RDBMS PDF: In 1985, Dr Edgar Frank “Ted” Codd- A computer scientist working for IBM proposed the relational model for database management which forms the theoretical basis for relational databases. He defined thirteen rules, numbered from 0 to 12. Accordingly,if a database has to be called as true relational database … Read more