What are Joins in SQL?
SQL join and Unions are the most common techniques in combining data data from two or more tables.
What is Enterprise Data Warehouse(EDW)?
An Enterprise data warehouse usually contains historical data that is derived from transaction data, but it can include data from other sources. It separates analysis workload from transaction workload and enables a business to consolidate data from several sources.
What is an ACID property in the Database?
In a relational database, multiple transactions are used in SQL (Structured Query Language) which can be one or multiple statements. A transaction is a single logical unit in which database…
What is Structured Query Language(SQL)? Definitions of SQL
SQL or Structured Query Language is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS). It provides various ways of manipulating and creating…
Most Useful Database Queries
A query is a request for data or information from a database table or combination of tables. This data may be generated as results returned by Structured Query Language (SQL) or as pictorials, graphs or complex results, e.g., trend analyses from data-mining tools.This blog post gives an introduction to some of the useful database queries.
What is a Relational Database Management System(RDBMS)? Definitions and Types
Relational database is a computer-software application that interacts with end-users, other applications, and the database itself to capture and analyze data. A general-purpose DBMS allows the definition, creation, querying, update, and administration of databases.
What is a Database and Why it is Important? Facts and Types
What is Data? Before we learn about databases, we need to first understand what data is. Data is information or facts related to an object that is under consideration. In…