Node.js MySQL SELECT Unique Record (WHERE Clause)

Retrieve a unique data from the table "employees".

Create a js file named selectwhere.js having the following data in DBexample folder.

1. var mysql = require('mysql');  
2. var con = mysql.createConnection({  
3. host: "localhost",  
4. user: "root",  
5. password: "12345",  
6. database: "javatpoint"  
7. });  
8. con.connect(function(err) {  
9. if (err) throw err;  
10. con.query("SELECT * FROM employees WHERE id = '1'", function (err, result) {  
11. if (err) throw err;  
12. console.log(result);  
13. });  
14. });  

Now open command terminal and run the following command:

1. Node selectwhere.js  

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Node.js MySQL Select Wildcard

Retrieve a unique data by using wildcard from the table "employees".

Create a js file named selectwildcard.js having the following data in DBexample folder.

1. var mysql = require('mysql');  
2. var con = mysql.createConnection({  
3. host: "localhost",  
4. user: "root",  
5. password: "12345",  
6. database: "javatpoint"  
7. });  
8. con.connect(function(err) {  
9. if (err) throw err;  
10. con.query("SELECT * FROM employees WHERE city LIKE 'A%'", function (err, result) {  
11. if (err) throw err;  
12. console.log(result);  
13. });  
14. });  

Now open command terminal and run the following command:

1. Node selectwildcard.js  

It will retrieve the record where city start with A.