SQL Syntax

SQL (Structured Query Language) is a programming language used for managing and manipulating relational databases. Here’s an overview of the basic SQL syntax:

1. SELECT statement:
   • Used to retrieve data from one or more tables.
   • Syntax:sql
2. SELECT column1, column2, ... FROM table_name;

INSERT statement:

• Used to insert data into a table.
• Syntax:sql

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

UPDATE statement:

• Used to modify existing data in a table.
• Syntax:sql

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

DELETE statement:

• Used to delete data from a table.
• Syntax:sql

• DELETE FROM table_name WHERE condition;

WHERE clause:

• Used to specify conditions for filtering data.
• Syntax:sql

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

JOIN clause:

• Used to combine rows from two or more tables based on a related column between them.
• Syntax:vbnet

• SELECT column1, column2, ... FROM table1 JOIN table2 ON table1.column = table2.column;

GROUP BY clause:

• Used to group rows based on one or more columns.
• Syntax:vbnet

• SELECT column1, column2, ... FROM table_name GROUP BY column1, column2, ...;

ORDER BY clause:

• Used to sort the result set based on one or more columns.
• Syntax:sql

• SELECT column1, column2, ... FROM table_name ORDER BY column1, column2, ... ASC|DESC;

These are just some of the most commonly used SQL statements and clauses. SQL offers many other features and functionalities for database management, such as creating tables, defining relationships, creating views, and more.