How can I insert JSON value to mysql databases? - mysql

Question

I can't insert json value into table.
const mysql = require('mysql');
const user = {};
const connection = mysql.createConnection({
host:'localhost',
user:'root',`enter code here`
password:'homi98',
database:'homi',
port:'3306',
});
user.path = "C:\\nodejsWorkspace\\Mysql";
user.date = "20190805";
user.weather = "sunny";
user.temp = 31;
user.day = "월요일";
console.log(user);
connection.connect();
connection.query('insert into homi01 (path,date,weather,temp,day) values (.$user[\'path\'].,\'20190805\',\'sunny\',31,\'월요일\'); '
,(error, results, fields) => {
if(error) throw error;
console.log(results);
});
connection.end();
Error: ER_PARSE_ERROR: You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near '.$user['path'].,'20190805','sunny',31,'월요일')' at
line 1
at Query.Sequence._packetToError

Answer 1

The query is not syntactically incorrect due to the way you are extracting values from your object. Use Template Strings to make this kind of concatenation simpler.
connection.query(`insert into homi01 (path, date, weather, temp, day) values ( "${user.path}", 20190805, "sunny", 31, "월요일"`
,(error, results, fields) => {
if(error) throw error;
console.log(results);
});
Edit:
If you have problems using Template Strings, here is how your query will be logged:
var user = {path: 'c:\\temp'}
console.log(`insert into homi01 (path, date, weather, temp, day) values ( "${user.path}", 20190805, "sunny", 31, "월요일"`);