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What is the general structure of a query?

A query contains the SELECT keyword, followed by a list of columns that are to appear in the resultant output. (Each column comprises the result of an expression, which can optionally reference one or more database fields.)


What is the structure of a SQL query?

SQL includes Data Definition Language (DDL) statements and Data Manipulation Language (DML) statements. DDL statements, such as CREATE, ALTER, and DROP, modify the schema of a database. DML statements, such as SELECT, INSERT, UPDATE, and DELETE, manipulate data in tables.

What is Structured Query Language with example?

Structured Query Language (SQL) is a specialized language for updating, deleting, and requesting information from databases. SQL is an ANSI and ISO standard, and is the de facto standard database query language.

What is the basic form of SQL query?

SELECT/FROM/WHERE SELECT − This is one of the fundamental query command of SQL. It is similar to the projection operation of relational algebra. It selects the attributes based on the condition described by WHERE clause.

What are the types of structured query language?

In the year 1974, the term Structured Query Language appeared. Five types of SQL queries are 1) Data Definition Language (DDL) 2) Data Manipulation Language (DML) 3) Data Control Language(DCL) 4) Transaction Control Language(TCL) and, 5) Data Query Language (DQL)

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