How to update multiple columns in mysql using nodejs

问题

How to update the multiple columns in MySQL using node.js:

var query = 'UPDATE employee SET profile_name = ? WHERE id = ?';
connection.query(query,[req.name,req.id] function (error, result, rows, fields) {

but I have to update profile_name, phone,email, country, state, address at once.
How can I do that, can anyone suggest.

回答1:

Simply add all columns in set:

var query = 'UPDATE employee SET profile_name = ?, phone =?, .. WHERE id=?';

connection.query(query,[req.name,req.phone,...,req.id] function (error, result, rows, fields) {

回答2:

UPDATE statement syntax :

UPDATE <TableName>
SET <Col1> = <Val1>,
    <Col2> = <Val2>,
    ....
WHERE id = ?

回答3:

👨‍🏫 To update your multiple columns in mysql using nodejs, then You can do it like this code below: 👇

const query = 'UPDATE `employee` SET ? WHERE ?';
connection.query(query, [req.body, req.params], function(err, rows) {
  if(err) {
    console.log(err.message);
    // do some stuff here
  } else {
    console.log(rows);
    // do some stuff here
  }
});

💡 Make sure your req.body is not empty and the field in your req.body it's same with the field in your employee table.

If your req.body is undefined or null, then you can add this middleware to your express server:

app.use(express.json());
app.use(express.urlencoded({ extended: true }));

I hope it can help you 🙏.

回答4:

If you have multiple columns update, and need to take the values from the Object, you can do the following-

let data = {
    "table": {
        "update_table":"dlrecustomer"
    },
  "result": {
    "pro":"blre",
        "pro_id":"BFCA",
        "MOBILE":"9506443333",
  },
  "keys": {
    "CUSTOMER":"27799144",
        "APPLICATION":"5454642463"
  },
}

let update_set = Object.keys(data.result).map(value=>{
       return ` ${value}  = "${data.result[value]}"`;
    });

    let update_query =  `UPDATE ${data.table.update_table} SET ${update_set.join(" ,")} WHERE CUST_ID = "${data.keys.CUSTOMER}" AND APPL_ID = "${data.keys.APPLICATION}"`;

来源：https://stackoverflow.com/questions/39484123/how-to-update-multiple-columns-in-mysql-using-nodejs

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mysql

node.js

express