SQL is categorized based on its functional scope, primarily into four types: Data Definition Language (DDL), Data Manipulation Language (DML), Data Control Language (DCL), and Data Query Language (DQL). DDL operates on database structures like schemas, tables, indexes, and views. Core commands are C...
Data Query Language (DQL) DQL (Data Query Language) is used to retrieve records from database tables. The primary keyword for queries is SELECT. Query operations are fundamental in database systems, often used more frequently than insert, update, or delete operations. Data displayed on websites and...
This article provides a detailed walkthrough of Hive SQL, categorizing its features and syntax for practical use. Hive SQL is segmented into the following categories: DDL Statements: Operations on databases, including their creation, modification, viewing, and deletion. Table operations such as mani...