Ultimate Guide to SQL: Everything You Need to Know
Preface
-What does SQL mean?
- Definition and Overview
- A Short History of SQL
- The Relevance of SQL in Present Day Database Systems
Chapter 1: SQL Fundamentals
- 1.1 An Overview of Databases
- The Concept of Database
- Database Types: Relational and Non-relational
- 1.2 Overview of SQL
- Structured Query Language (SQL) defined
- Components of SQL language
- 1.3 The Structure and Form of SQL
- The Simple syntax of SQL
- The elements of SQL statements and representations
Chapter 2: SQL Data Types and Operations
- 2.1 SQL Data Types.
- Numeric Data Types.
- Character Data Types.
- Data and Time Data Types.
- 2.2 SQL Operators.
- Arithmetic Operators.
- Comparison Operators.
- Relationship Operators.
Chapter 3: SQL Queries and Data Extraction.
- 3.1 Fundamentals of SELECT Statements
- Selecting Between the Columns.
- Definition of Uniqueness with DISTINCT and Its Removal.
- 3.2 Data Parameters Management
- The WHERE Clause
- Applying AND, OR, NOT for Advanced Filtering
- 3.3 Organizing and Expressing the Results
- The ORDER BY Clause.
- Sorting Of Columns.
- 3.4 Data Throwing Over
- Aggregation Functions (COUNT, SUM, AVG, MIN, MAX)
- GROUP BY and HAVING clauses.
- 4.1 Explanation of all types of Join
- What does the term JOIN mean?
- Classification of Joins: (INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN)
- 4.2 Merits of Using Several Tables To Manipulate Data
- Join Tables
- The Notion of Primary Key and Foreign Key
Chapter 5: Queries in SQL with SubQueries and Nested Queries
- 5.1 What are subqueries?
- The primary versus secondary node correlated versus uncorrelated subquery classification.
- 5.2 Using Subqueries in Support of the Executing of the SELECT, INSERT, UPDATE, and DELETE Commands
- Examples and Use Cases
Chapter 6: Using SQL in Data DML
- 6.1 Adding Information
- The INSERT INTO Statement
- Inserting Multiple Rows
- 6.2 Updating Data
- The principals of the UPDATE Operation
- Conditional Updates
- 6.3 Eliminating Information
- The DELETE statement
- Conditions in the Context of DELETE
Chapter 7: Enhancement of the SQL Applications and Their Underlying Theory: Database Design and Normal Forms.
- 7.1 The General Guidelines for Designing Databases
- The Process of Building the Schema
- Entity-Relationship (ER) models
- 7.2 Database Normalization
- Stages of normalization: 1NF, 2NF, 3NF, BCNF
- Pros of database normalization
Chapter 8. SQL Indexes and Performance Tuning
- 8.1 What are Indexes?
- Features of Indexes (Single-index, Multi-index)
- Implementation and Maintenance of Indexes
- 8.2 Tuning SQL queries
- Query Tuning Strategies
- Query Execution Timing and Analysis
Chapter 9: SQL Added Advanced Functionalities
- 9.1 Stored Procedures
- Defining and Implementing Stored Procedures
- Merits of Implementing Stored Procedures
- 9.2 Triggers
- Definition of Trigger
- The Automation Process through Trigger Development
Chapter 10: SQL and Data Security - Literature Review
- 10.1 Contextual SQL Security
- Roles and Privileges
- SQL Injection and Countermeasures
- 11.1 SQL Server
- An Overview of Microsoft SQL Server
- Characteristics and Comparison
- 11.2 MySQL
- Overview of MySQL Database Management System
- Characteristics and Comparison
- 11.3 PostgreSQL
- Overview of PostgreSQL Database Management System
- Characteritics and Comparison
- 11.4 SQLite
- Overview of SQLite Database Management System
Chapter 12: SQL: The Big Data and the Need For Skills. Wanyje I Ka Sekle Na Wot U Somile Dekalakumsha proverbs Kamabaa akamresi Kleisdnii in articulation.
- 12.1 Most Common Barriers In Using SQL For Most Individuals.
– Syntax-related Fallacies.
– Errors Related to Mathematics.
- 12.2 Searching for the Problems Caused by the Usage Aspect of SQL.
– The SQL profiler tools and the audit informational, the database logs of the profiler log.
– “How to Fix It” Section.
Chapter 13 SQL Do’s and Don’ts
- 13.1 Need to Build and Run Efficient SQL Statements
– Includes Coding Guidelines and their enforcement
– Control of Typical Mistakes
– 13.2 Temporary Work and Preservation of Data
– The Need for Regular Backups to be Carried Out.
– Measures Preventing Deterioration of Database Performance.
Chapter 14: Versatile Future of SQL and Current Trends in IT
- 14.1 SQL and Database Management System: Present Developments
- Cloud Databases and SQL
- SQL in Relation to Big Data
Conclusion
- Review of Most Important Points
- Directions for Additional Study
Appendices
- Appendix A: SQL Command Reference
- Appendix B: Glossary of SQL Terms
- Appendix C: Recommended Tools and Resources
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