All the SQL statements start with any of the keywords like SELECT, INSERT, UPDATE, DELETE, ALTER, DROP, CREATE, USE, SHOW and all the statements end with a semicolon (;).
Example
-
SELECT emp_name, hire_date, salary FROM employees WHERE salary > 5000;
For better readability you can also write the same statement, as follow:
Example:SELECT emp_name, hire_date, salary
FROM employees
WHERE salary > 5000;
Case Sensitivity in SQL
Example:
SELECT emp_name, hire_date, salary FROM employees;
The same statement can also be written, as follow:
Example:
select emp_name, hire_date, salary from employees;
SQL Comments
SQL support single-line as well as multi-line comments. To write a single-line comment start the line with two consecutive hyphens (--
).
Example:
-- Select all the employees
SELECT * FROM employees;
sql syntax, sql tutorial, database
SQL - Syntax - sql tutorial
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