nodejs与sqlite
//打开数据库
var db =
new sqlite3.Database('xx.db');
// 关闭数据库
db.close();
db.run('xx');
// 数据库对象的run函数可以执行任何的SQL语句，该函数一般不用来执行查询
// create alter 之类的
增:
var stmt = db.prepare("INSERT OR REPLACE INTO note (cdate, content) VALUES (?,?)");
stmt.run(data.cdate, data.content);
stmt.finalize();
删:
db.prepare("DELETE from note where cdate =?");
stmt.run(data.cdate);
stmt.finalize();
改:
var stmt = db.prepare("UPDATE note set content=? where cdate =?");
stmt.run(data.content, data.cdate);
stmt.finalize();
查:
db.each("SELECT rowid AS id, thing FROM Stuff",
function(err, row) {
console.log(row.id + ": " + row.thing);
});
});
// or
db.all("SELECT xxx",
function (err, res){});
// 使用
先把库下载到node_modules npm install sqlite3 --save
1.引入sqlite3库
var sqlite3 = require('sqlite3');
// or var sqlite3 = require("sqlite3").verbose();
var db =
new sqlite3.Database(file);
db.serialize(
function() {
//Do stuff
db.run("CREATE TABLE Stuff (thing TEXT)");
var stmt = db.prepare("INSERT INTO Stuff VALUES (?)");
for(
var i = 0;i<xx;i++){
stmt.run('xx');
}
stmt.finalize();
});
db.close();