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.

snippet

var mysql = require('mysql');
var con = mysql.createConnection({
host: "localhost",
user: "root",
password: "12345",
database: "rookienerd"
});
con.connect(function(err) {
if (err) throw err;
con.query("SELECT * FROM employees WHERE id = '1'", function (err, result) {
if (err) throw err;
console.log(result);
});
});

Now open command terminal and run the following command:

snippet

Node selectwhere.js

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.

snippet

var mysql = require('mysql');
var con = mysql.createConnection({
host: "localhost",
user: "root",
password: "12345",
database: "rookienerd"
});
con.connect(function(err) {
if (err) throw err;
con.query("SELECT * FROM employees WHERE city LIKE 'A%'", function (err, result) {
if (err) throw err;
console.log(result);
});
});

Now open command terminal and run the following command:

snippet

Node selectwildcard.js

It will retrieve the record where city start with A.