Is there a way to determine the quantity of elements contained within a table by utilizing a script in Azure?

I am in need of creating an online leaderboard for a video game utilizing a Mobile Service on Azure. The goal is to have a table that only holds the top 100 scores, so as new scores are added, they should be admitted until reaching this limit. In order to achieve this, I must incorporate code within my insert script on Azure that counts the number of rows in my Leaderboard table.

The current default script looks like this:

function insert(item, user, request) {
   request.execute();
}

To count the rows, my query would resemble something along these lines:

SELECT COUNT (*)  
FROM Leaderboard

Although I attempted using mssql.query, it appears that this portion of the code is not being recognized.

var sql = "SELECT COUNT (*) FROM Leaderboard";

    mssql.query(sql, {
        success: function(results){
            //do things
        },
        error: function(err) {
            console.log("error: " + err);
        }
    });

Another approach I tried involved:

var LeaderboardOnlineTable = tables.getTable('LeaderboardOnline');

LeaderboardOnlineTable.take(0).includeTotalCount().read().then(function (results) {
        var count = results.totalCount;
    });

Could there be an error in my methods? Any help or advice is greatly appreciated!

Thank you in advance!

javascriptsqlazurecount

Answer №1

Try using this solution:

function addRecord(item, user, request) {
    var HighScoresTable = tables.getTable('HighScores');
    HighScoresTable.includeTotalCount().read({success: checkIfFull});

    function checkIfFull(results) {
        var count = results.totalCount;
        if (count < 50) {
            request.execute();
        } else {
            // Handle when the table is full
        }
    }
}

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