PptxGenJS Presentation

[Audio] Hey Everyone. This presentation is on SQL . It stands for Structured Query Language which is used foe managing and manipulating relational database. It enables users to create, read, update and delete data efficiency..

[Audio] What is SQL? SQL is a query language used for interacting with and managing relational databases. It is also used for data manipulation which allows users to perform essential operations like selecting, inserting, updating and deleting the data. It provides mechanisms for controlling user access and managing database security..

[Audio] SQL Syntax and Structure. Syntax : SQL statements adhere to a specific syntax, encompassing keywords, clauses, and expressions, all of which must be utilized accurately to yield the desired outcomes. Structure : Typically, SQL queries are structured with clauses such as SELECT, FROM, WHERE, ORDER BY, and GROUP BY, enabling the retrieval, filtering, and organization of data. Case-Sensitive : While SQL is generally case-insensitive, maintaining consistent capitalization is recommended for improved readability and maintainability..

[Audio] Types Of Data Types in SQL There are 3 data types in SQL Numeric Data Type: It supports data types such as Integers , Decimal and float for storing and manipulating the numerical values. Text Data Types : Varcar and caar are the data types used for storing alphanumeric characters and strings of variable. Date and time : It provides dedicated data types like Date, Time and time stamp for storing and working with data..

[Audio] SQL Statements: The SELECT statement is used to retrieve data from a database, specifying the columns and conditions for the desired data. The INSERT statement is used to add new records or rows of data to a database table. The UPDATE statement is used to modify existing data in a database table, based on specified conditions. The DELETE statement is used to remove records or rows of data from a database table, based on specified conditions..

[Audio] SQL clauses: The WHERE clause is used to filter and retrieve data based on specific conditions or criteria. The ORDER BY clause is used to sort the retrieved data in ascending or descending order based on one or more columns The GROUP BY clause is used to group rows that have the same values into summary rows, often used with aggregate functions. The HAVING clause is used in conjunction with the GROUP BY clause to filter the grouped data based on specified conditions..

[Audio] SQL Joins: There are 4 types of joins in SQL . The INNER JOIN clause combines rows from two or more tables based on a related column between them, returning only the matching records. The OUTER JOIN clause combines rows from two or more tables, including the matching records and the non-matching records from either table. The LEFT JOIN and RIGHT JOIN clauses return all records from the left or right table, respectively, and the matching records from the other table..

[Audio] Queries In SQL: There are 2 types of querries Subqueries are SQL queries nested within other SQL statements, allowing for more complex and powerful data retrieval and manipulation. Nested queries are subqueries that are further nested within other subqueries, creating a hierarchical structure for advanced data processing. Subqueries and nested queries can impact performance, so it's important to optimize them for efficient execution..

[Audio] These are the some real-life examples. SQL is used in retail sales analysis for tracking and analyzing sales data to identify trends and makes decisions We use Sql in Customer Relationship management for storing and managing the customer information. In inventory management we use SQL for monitoring and controlling stock levels, tracking product availability etc..

[Audio] Thank You.. THANK YOU.