Question

我只想创建一个包含一列的表并为其添加一些值，但我得到两个错误。一个是如果我取消注释db.close（）;句柄关闭太快，另一个是Error: SQLITE_ERROR: near "0": syntax error下面是代码。

var file = "DB.sqlite3";
var sqlite3 = require("sqlite3").verbose();
var db = new sqlite3.Database(file);

if(!fs.existsSync(file)) fs.openSync(file, "w");

db.serialize(function() {        
    db.run(`CREATE TABLE IF NOT EXISTS players (id INTEGER)`);
    for(var i = 0; i < 10; i++)
    {
        db.run(`SELECT EXISTS(SELECT 1 FROM players WHERE id=${i})`, function(error, row) {
            if (row === undefined) 
                db.run(`INSERT INTO players (id) VALUES (?)`,i);
            if(error) console.log(error);
        });
    }
});
//db.close();    //if I uncomment I get that the handle has closed

Answer 1

我不确定，因为我只是一个初学者，但我认为你的dbclose需要进入最后一个括号内：

var file = "DB.sqlite3";
var sqlite3 = require("sqlite3").verbose();
var db = new sqlite3.Database(file);

if(!fs.existsSync(file)) fs.openSync(file, "w");

db.serialize(function() {        
    db.run(`CREATE TABLE IF NOT EXISTS players (id INTEGER)`);
    for(var i = 0; i < 10; i++)
    {
        db.run(`SELECT EXISTS(SELECT 1 FROM players WHERE id=${i})`, function(error, row) {
            if (row === undefined) 
                db.run(`INSERT INTO players (id) VALUES (?)`,i);
            if(error) console.log(error);
        });
    }
db.close();
});

错误：SQLITE_ERROR：near＆＃34; 0＆＃34;：语法错误

1 个答案: