Day 1 SQL.pptx

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The document provides an introduction to SQL and database management systems. It defines SQL as the standard language for interacting with relational databases and describes its key characteristics as being declarative and using English-like syntax. The document outlines different SQL statements for data definition, manipulation, and control and provides examples of SQL queries and operations for creating databases and tables, inserting, updating, and deleting data, performing joins and aggregations, and applying constraints. The goal is to explain the importance of database management systems and SQL for efficient data storage, retrieval, and manipulation.

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© Brain4ce Education Solutions Pvt. Ltd. All rights reserved.
Contents
▪ Database Management System (DBMS) - Definition and importance
▪ Introduction to Structured Query Language (SQL)

© Brain4ce Education Solutions Pvt. Ltd. All rights reserved.

© Brain4ce Education Solutions Pvt. Ltd. All rights reserved.
SQL: Structured Query Language
▪ SQL (Structured Query Language): Standard language for
interacting with relational databases
▪ Key characteristics:
▪ Declarative language
▪ Uses English-like syntax
▪ Supports data definition, manipulation, and control

© Brain4ce Education Solutions Pvt. Ltd. All rights reserved.
SQL: Basics
▪ SQL Statements:
▪ Data Definition Language (DDL): CREATE, ALTER, DROP
▪ Data Manipulation Language (DML): SELECT, INSERT, UPDATE, DELETE
▪ Data Control Language (DCL): GRANT, REVOKE
▪ SQL Queries:
▪ SELECT statement: Retrieves data from a database table
▪ Example: SELECT * FROM Customers WHERE Country = 'USA';

SQL: SQL Database Operations
Creating Database and Tables:
• CREATE DATABASE database_name;
• CREATE TABLE table_name (column1 datatype, column2 datatype, ...);
Inserting Data:
• INSERT INTO table_name (column1, column2, ...) VALUES (value1,
value2, ...);
Updating Data:
• UPDATE table_name SET column_name = new_value WHERE
condition;
Deleting Data:
• DELETE FROM table_name WHERE condition;

SQL: SQL Database Operations
Joins:
Combine rows from multiple tables based on related columns
Types: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN
Aggregation Functions:
Perform calculations on groups of rows
Examples: SUM, AVG, COUNT, MAX, MIN
Constraints:
Rules applied to columns to enforce data integrity
Examples: PRIMARY KEY, FOREIGN KEY, NOT NULL

Summary
• Database Management System (DBMS) is essential for efficient data
management.
• SQL is a powerful language for interacting with relational databases.
• Understanding DBMS and SQL enables effective data storage, retrieval, and
manipulation.

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Day 1 SQL.pptx

1. SQL : Day 1

12. © Brain4ce Education Solutions Pvt. Ltd. All rights reserved. SQL: Structured Query Language ▪ SQL (Structured Query Language): Standard language for interacting with relational databases ▪ Key characteristics: ▪ Declarative language ▪ Uses English-like syntax ▪ Supports data definition, manipulation, and control

13. © Brain4ce Education Solutions Pvt. Ltd. All rights reserved. SQL: Basics ▪ SQL Statements: ▪ Data Definition Language (DDL): CREATE, ALTER, DROP ▪ Data Manipulation Language (DML): SELECT, INSERT, UPDATE, DELETE ▪ Data Control Language (DCL): GRANT, REVOKE ▪ SQL Queries: ▪ SELECT statement: Retrieves data from a database table ▪ Example: SELECT * FROM Customers WHERE Country = 'USA';

14. SQL: SQL Database Operations Creating Database and Tables: • CREATE DATABASE database_name; • CREATE TABLE table_name (column1 datatype, column2 datatype, ...); Inserting Data: • INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...); Updating Data: • UPDATE table_name SET column_name = new_value WHERE condition; Deleting Data: • DELETE FROM table_name WHERE condition;

15. SQL: SQL Database Operations Joins: Combine rows from multiple tables based on related columns Types: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN Aggregation Functions: Perform calculations on groups of rows Examples: SUM, AVG, COUNT, MAX, MIN Constraints: Rules applied to columns to enforce data integrity Examples: PRIMARY KEY, FOREIGN KEY, NOT NULL

16. Summary • Database Management System (DBMS) is essential for efficient data management. • SQL is a powerful language for interacting with relational databases. • Understanding DBMS and SQL enables effective data storage, retrieval, and manipulation.

17. Questions …Any?

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