SQL Syntax: Basic and Advanced

Basic SQL Commands

Let's start with fundamental SQL commands:

1. CREATE DATABASE

CREATE DATABASE database_name;

2. USE DATABASE

USE database_name;

3. CREATE TABLE

CREATE TABLE table_name (   column1 datatype,   column2 datatype,   ... );

4. INSERT INTO

INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...);

5. SELECT

SELECT column1, column2, ... FROM table_name WHERE condition;

6. UPDATE

UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition;

7. DELETE

DELETE FROM table_name WHERE condition;

Advanced SQL Commands

Now, let's explore some advanced SQL concepts:

1. JOIN

SELECT columns FROM table1 INNER JOIN table2 ON table1.column = table2.column;

2. GROUP BY

SELECT column, COUNT(*) FROM table GROUP BY column;

3. ORDER BY

SELECT column1, column2, ... FROM table ORDER BY column1 ASC, column2 DESC;

4. HAVING

SELECT column, COUNT(*) FROM table GROUP BY column HAVING COUNT(*) > 1;

5. Subqueries

SELECT column1 FROM table1 WHERE column2 IN (SELECT column2 FROM table2 WHERE condition);

This is a brief overview; SQL is a vast language with many more features. Consult specific database documentation for detailed information and variations.