Node.js MySQL LTRIM() Function
Last Updated :
07 Oct, 2021
LTRIM() Function is a Builtin Function in MySQL which is used to trim all spaces from left side of input string.
Syntax:
LTRIM(string)
Parameters: LTRIM() function accepts a single parameters as mentioned above and described below.
- string: String needed to be trimmed from left side
Return Value:
LTRIM() function returns string after trimming from left side.
Modules:
- mysql: To handle MySQL Connection and Queries
npm install mysql
Example 1: Hard Coded Query
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 LTRIM( ' Geeks For Geeks ' ) AS LTRIM_Output`;
db_con.query(query, (err, rows) => {
if (err) throw err;
console.log(rows);
});
});
|
Output:
Example 2: Dynamic Query
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 LTRIM(?) AS LTRIM_Output`;
let input_string = " Pratik Raut" ;
db_con.query(query, input_string, (err, rows) => {
if (err) throw err;
console.log(rows);
});
});
|
Output:
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