Node.js MySQL FIND_IN_SET() Function
Last Updated :
17 Feb, 2021
FIND_IN_SET() function is a built-in function in MySQL that is used to get the position of the first occurrence of value string in a list of strings separated by comma(‘,’).
Syntax:
FIND_IN_SET(value, list_of_string)
Parameters: It takes two parameters as follows:
- value: It is the value to be searched.
- list_of_string: It is the list of strings separated by comma (‘,’).
Return Value: It returns the position of first occurrence of value string in a list of string separated by comma (‘,’)
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:
index.js
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 FIND_IN_SET('2', '1,12,2,32') AS Output";
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: Advance Example
index.js
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 sub_query =
"(SELECT GROUP_CONCAT(name) FROM publishers)";
let main_query =
`SELECT FIND_IN_SET('lily', ${sub_query}) AS lily_position`;
db_con.query(main_query, (err, rows) => {
if(err) throw err;
console.log(rows);
});
});
|
Run the index.js file using the following command:
node index.js
Output:
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