Node.js MySQL LCASE() Function
Last Updated :
17 Feb, 2021
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LCASE() function is a built-in function in MySQL that is used to convert all characters of a given string to lowercase.
Syntax:
LCASE(input_string)
Parameters: It takes one parameter as follows:
- input_string: Input string which is passed as a parameter to convert this string to lowercase.
Return Value: It returns a new lowercase string.
Module Installation: Install the mysql module using the following command:
npm install mysql
Database: Our SQL publishers table preview with sample data is shown below:
Example 1:
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");
// Here is the query
let query =
"SELECT LCASE('This iNpUT strinG @!#$%^&*()?') AS lowercase_name";
db_con.query(query, (err, rows) => {
if(err) throw err;
console.log(rows);
});
});
Run the index.js file using the following command:
node index.js
Output:
Example 2:
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");
// Here is the query
let query =
"SELECT LCASE(name) AS lowercase_name FROM publishers";
db_con.query(query, (err, rows) => {
if(err) throw err;
console.log(rows);
});
});
Run the index.js file using the following command:
node index.js
Output: