NodeJS sqlite3 SELECT查询缓存

Question

I'm creating a discord bot (DiscordJS) using NodeJS and using sqlite3 to store 2 sets of data.

I open the DB with:

 let db = new sqlite3.Database('./db/games.db', (err) => {
        if (err) {
            console.error(err.message);
            return;
        }
        ...
}

Later on, I store a certain message in a table called promotedGames (id INCREMENTAL, server INT, channel INT, messageID INT)

And when I query the db with

db.all(`SELECT * FROM promotedGames WHERE gameID = ${row.id}`, (err, promotedGamesResults) => {
...

It always returns the first ever game stored, I've no idea why this could be happening at all.

Steps taken so far: - Restarted the Node App - Deleted the sqlite3 database and redone it - Deleted the node_modules folder and reinstalled all the packages

Any hints of what could be that I'm doing wrong?

Thanks in advance

Answer 1

您尝试使用 row.Id 搜索您的 gameID，sqlite 中的 row id 是您在表中插入的行的内置计数器，它不是列 gameID 。

Answer 2

I think you intend to return the records matching the ${row.id} It runs the query passed as an argument and for each result from the database, it will run the callback. Therefore is better to use db.each() when you intend to retrieve some items from the database.

db.each(`SELECT * FROM promotedGames WHERE gameID = ${row.id}`, (err, promotedGamesResults) => {

...

PS: db.each is used when you need to return all the rows and work on the selected returned data set.