SQL Links

 SQL links:

1. SQL in a nut shell
   
2. SQL - What is database? | Types of Databases? | What is SQL? | RDBMS? | what is a table? |
   
3. SQL - Create your database schema | Create a table |Add data to tables | SQL data types | Types of SQL commands
   
4. SQL DDL commands
   
5. SQL Constraints
   
6. SQL - DQL and DML commands - SELECT | Select Distinct | Insert Into | Insert Multiple rows | Update | delete
   
7. SQL DCL and TCL
   
8. SQL - Clauses | Where | TOP, Limit, Fetch First or Rownum Clause | Group BY | Having | Order BY
   
9. SQL - Aggregate functions
   
10. SQL Joins | Inner join | Left Join | Right Join | Full Join | Self Join
    
11. SQL Set Operations
    
12. SQL Subquery
    
13. SQL Views
    
14. SQL Operators
    
15. SQL Case Expression
    
16. SQL Sequence
    
17. SQL Null Functions
    
18. SQL wildcard characters
    
19. SQL working with dates
    

Reference:

https://www.w3schools.com/sql/default.asp