(8.0.31)
https://programming-engineer.com/nodejs-database-connection/
https://ictdiary.hatenadiary.jp/entry/2018/12/03/221312
OS: CentOS 7
yum -y install epel-release
yum -y install nodejs
yum -y install npm
node -v
npm -v
mkdir test;cd test
npm init --yes
npm install mysql
cat package.json
vim a.js
---------------------
const mysql = require('mysql');
const connection = mysql.createConnection({
host: 'localhost',
user: 'root',
password: 'password',
port : 3306,
database: 'test'
});
var sql = "select * from tab1";
connection.query(sql, function (err, results, fields) {
if(err){
console.error("sql execute error");
}else{
console.log(results);
connection.end();
}
});
---------------------
node a.js
(19c)
https://qiita.com/ho-rai/items/74ee0345590ed5923870
https://hellomyworld.net/posts/access-oracle-db-from-nodejs/
OS: CentOS 7
yum -y install epel-release
yum -y install nodejs
yum -y install npm
node -v
npm -v
su - oracle
mkdir test;cd test
npm init --yes
npm install oracledb
cat package.json
vim a.js
---------------------
const oracledb=require('oracledb');
const dbconfig = {
user : "test",
password : "test",
connectString : "mmm065:1521/pdb1.example.com",
};
(async () => {
try {
sql='select * from tab1';
parameter=[];
connection = await oracledb.getConnection(dbconfig);
options = {outFormat: oracledb.OUT_FORMAT_OBJECT};
result = await connection.execute(sql,parameter, options);
console.log(result.rows);
}catch(error){
console.log("ERROR"+error);
}finally{
await connection.close();
}
})();
---------------------
node a.js
(15)
https://www.dailyupblog.com/backend_development/962/
OS: Rocky Linux 8
dnf -y install epel-release
dnf -y install nodejs
dnf -y install npm
node -v
npm -v
su - postgres
mkdir test;cd test
npm init --yes
npm install pg
cat package.json
vim a.js
---------------------
const { Client } = require("pg");
const client = new Client({
user: "postgres",
password: "postgres",
host: "localhost",
port: 5432,
database: "test",
});
var sql = "select * from tab1";
client.connect();
client.query(sql, (err, res) => {
console.log(res.rows);
client.end();
});
---------------------
node a.js
(2019)
https://syon.github.io/refills/rid/1564145/
https://www.npmjs.com/package/mssql
OS: CentOS 7
yum -y install epel-release
yum -y install nodejs
yum -y install npm
node -v
npm -v
mkdir test;cd test
npm init --yes
npm install mssql
cat package.json
vim a.js
---------------------
const mssql = require("mssql");
const config = {
user: "sa",
password: "password",
server: "10.1.1.61",
database: "test",
options: {
encrypt: false
}
};
(async () => {
try {
await mssql.connect(config);
const result = await mssql.query`select * from tab1`;
console.log(result.recordset);
}catch(error){
console.log("ERROR"+error);
}finally{
await mssql.close();
}
})()
---------------------
node a.js
