Omniism Technologies Lead DBA Interview Questions and Answers

SQL stands for Structured Query Language, used to manage and manipulate relational databases.

• SQL is a programming language used to manage and manipulate relational databases.

• It is used to create, modify, and query databases.

• SQL is used in various applications such as web development, data analysis, and business intelligence.

• Examples of SQL-based database management systems include MySQL, Oracle, and Microsoft SQL Serve

There are mainly four types of databases: relational, NoSQL, column-family, and document.

• Relational databases store data in tables with predefined relationships between them.

• NoSQL databases are non-relational and can handle unstructured data.

• Column-family databases store data in columns instead of rows.

• Document databases store data in documents, usually in JSON format.

• Examples of relational databases include MySQL and ...read more