What is SQL write SQL features?

What is SQL SQL features?

SQL functions are characterized by many general features. SQL functions: Can contain SQL Procedural Language statements and features which support the implementation of control-flow logic around traditional static and dynamic SQL statements.

What is SQL write its properties?

Structured Query Language (SQL) is a standard language to write queries. It was developed under R Project by IBM. SQL has a basic grammar and syntax. It was declared as a standard language to use by American Standard National Institute(ANSI) and International Standard Organization(ISO).

What is SQL What are its functions and features?

SQL functions are characterized by many general features. … SQL scalar functions return a scalar value. SQL table functions return a table result set. Support a simple, but powerful condition and error-handling model. Allow you to easily access the SQLSTATE and SQLCODE values as special variables.

What are the key features of My SQL?

The following are the most important features of MySQL:

  • Relational Database Management System (RDBMS) MySQL is a relational database management system. …
  • Easy to use. MySQL is easy to use. …
  • It is secure. …
  • Client/ Server Architecture. …
  • Free to download. …
  • It is scalable. …
  • Speed. …
  • High Flexibility.
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What is SQL 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 are the types of SQL?

Types of SQL Statements

  • Data Definition Language (DDL) Statements.
  • Data Manipulation Language (DML) Statements.
  • Transaction Control Statements.
  • Session Control Statements.
  • System Control Statement.
  • Embedded SQL Statements.

Is SQL hard to learn?

Generally speaking, SQL is an easy language to learn. If you understand programming and already know some other languages, you can learn SQL in a few weeks. If you’re a beginner, completely new to programming, it can take longer.

What are the elements of SQL?

SQL Language Elements

  • Keywords. Each SQL statement contains one or more keywords.
  • Identifiers. Identifiers are names of objects in the database, such as user IDs, tables, and columns.
  • Strings. …
  • Expressions. …
  • Search Conditions. …
  • Special Values. …
  • Variables. …
  • Comments.

What can SQL do?

SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL statements are used to perform tasks such as update data on a database, or retrieve data from a database.

What are the features of PL SQL?

Features of PL/SQL

  • PL/SQL is tightly integrated with SQL.
  • It offers extensive error checking.
  • It offers numerous data types.
  • It offers a variety of programming structures.
  • It supports structured programming through functions and procedures.
  • It supports object-oriented programming.

What are the features of DBMS?

What are DBMS Database Management System Features

  • Data Availability. …
  • Minimized Redundancy. …
  • Data Accuracy, Consistency and Relevance. …
  • File Consistency. …
  • Improved Data Security. …
  • Easiness in Data Management. …
  • Data Structuring. …
  • Database Customization.
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How are SQL commands classified?

These SQL commands are mainly categorized into four categories as: DDL – Data Definition Language. … DML – Data Manipulation Language. DCL – Data Control Language.

What are the advantages of MySQL?

8 Major Advantages of Using MySQL

  • Data Security. …
  • On-Demand Scalability. …
  • High Performance. …
  • Round-the-clock Uptime. …
  • Comprehensive Transactional Support. …
  • Complete Workflow Control. …
  • Reduced Total Cost of Ownership. …
  • The Flexibility of Open Source.

What are the key features of MongoDB?

MongoDB Features

  • Ad-hoc queries for optimized, real-time analytics. …
  • Indexing appropriately for better query executions. …
  • Replication for better data availability and stability. …
  • Sharding. …
  • Load balancing.
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