Node.js MySQL Limit Clause
LIMIT Clause is used to set the maximum size of the number of rows in the output of SQL Query.
Syntax:
- Select only 3 rows from 1st row of users table.
SELECT * FROM users LIMIT 3
- Select only 3 rows from the 2nd row of the users table.
SELECT * FROM users LIMIT 3 OFFSET 1
Modules:
- mysql: To handle MySql Connection and Queries
npm install mysql
SQL users table preview:
Example 1: Select 3 rows from 1st row of users table
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" ); // here is our query let query = 'SELECT * FROM users LIMIT 3' ; db_con.query(query, (err, rows) => { if (err) throw err; console.log(rows); }); }); |
Output:
Example 2: Select 4 rows from 4th row of users table
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" ); // notice offset is 3, this means choose from row 4 let query = 'SELECT * FROM users LIMIT 4 OFFSET 3' ; db_con.query(query, (err, rows) => { if (err) throw err; console.log(rows); }); }); |
Output: There are only 3 rows from 4th row. so, output contains only 3 rows
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