Node.js MySQL LOWER() Function
Last Updated :
29 Nov, 2021
LOWER() Function is a Builtin function in MySQL which is used to convert all characters of given string to lowercase.
Syntax:
LOWER(input_string)
Parameters: LOWER() function accepts a single parameter as mentioned above and described below.
- input_string: We will convert this string to lowercase
Return Value: LOWER() function returns a new lowercase string.
Modules:
- mysql: To handle MySQL Connection and Queries
npm install mysql
SQL publishers Table Preview:
Example 1:
Javascript
const mysql = require( "mysql" );
let db_con = mysql.createConnection({
host: "localhost" ,
user: "root" ,
password: "" ,
database: "gfg_db" ,
});
db_con.connect((err) => {
if (err) {
console.log( "Database Connection Failed !!!" , err);
return ;
}
console.log( "We are connected to gfg_db database" );
let query = "SELECT LOWER('This iNpUT strinG @!#$%^&*()?') AS lowercase_name" ;
db_con.query(query, (err, rows) => {
if (err) throw err;
console.log(rows);
});
});
|
Output:
Example 2:
Javascript
const mysql = require( "mysql" );
let db_con = mysql.createConnection({
host: "localhost" ,
user: "root" ,
password: "" ,
database: "gfg_db" ,
});
db_con.connect((err) => {
if (err) {
console.log( "Database Connection Failed !!!" , err);
return ;
}
console.log( "We are connected to gfg_db database" );
let query = "SELECT LOWER(name) AS lowercase_name FROM publishers" ;
db_con.query(query, (err, rows) => {
if (err) throw err;
console.log(rows);
});
});
|
Output:
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