Complete SQL Course | Views, Procedures & Custom Functions. скачать в хорошем качестве

Complete SQL Course | Views, Procedures & Custom Functions.

FREE COURSES:https://grepsoft.com/free-courses/ Course Overview: SQL Basics: Understanding databases and tables. Writing basic queries, selecting, filtering, and sorting data. Data Manipulation: Inserting, updating, and deleting records in your database. Advanced Data Querying: Mastering joins (inner, left, right) and using the UNION operator. Aggregating data with GROUP BY and common functions like SUM, AVG, COUNT. SQL Functions: Using mathematical, date, time, and string functions to manipulate data. SQL Analytical Functions: Exploring RANK, DENSE_RANK, ROW_NUMBER, LAG, LEAD, and running totals. Views and Stored Procedures: Creating and using views and stored procedures for efficient data management. Functions Creating your own custom functions. Indexes and Performance: Understanding indexes and basic performance tuning techniques. Database Security and User Management: Managing users, roles, and permissions to secure your database.