How to SELECT Statement??

The MySQL SELECT statement is used to fetch data from the one or more tables in MySQL. We can retrieve records of all fields or specified fields.

Syntax for specified fields:

SELECT expressions  

FROM tables  

[WHERE conditions];  

Syntax for all fields:

1.    SELECT * FROM tables [WHERE conditions];  

MySQL SELECT Example 1: for specified fields

In such case, it is mandatory to specify field names.

Example:

SELECT officer_name, address  

FROM officers  

MySQL SELECT Example 2: for all fields

In such case, we can specify either all fields or * (asterisk) symbol.

SELECT * FROM officers  

MySQL SELECT Example 3: from multiple tables

MySQL SELECT statement can also be used to retrieve records from multiple tables by using JOIN statement.

Let's take two tables "students" and "officers", having the following data.

Execute the following query:

SELECT officers.officer_id, students.student_name  

FROM students  

INNER JOIN officers  

ON students.student_id = officers.officer_id  

ORDER BY student_id;  

Output: