How to fill table with information from a database?

So my people, first of all, would like to say that I'm a beginner and I started learning this week so take it easy with me, please u.u

So I'm tinkering with a test site here and I have the following situation: I have three employees and each of them has worked a certain amount of hours a day. This information is all in one bd. In the script, the names of the employees are identified by: Obj [1] [i] .name and the hours worked are identified by Obj [1] [i] .horas. What I want to do is add up all the hours each employee has worked and show them in their respective column.

Well, I tried to do the following:

I created an array with the names of the employees to compare with the names of the database and if the names are the same, the times will be added byéeeeeem, I do not know how to make it appear in the table. I do not know if what I did is right (probably not) but I tried the part of the code I did it in here:

    if (Obj !== null) {

                    if (Obj[0].tipo === 1) {

                        var data = [];
                        nomes = new Array ("Alex", "Yamilla", "Fernanda");


                        jQuery("#status_projetos").html("");
                        jQuery("#resumo_alocacao").html("");


                        for(var x = 0; x < nomes.length; x++ )
                        {
                            soma = 0;



                        for (var i = 0; i < Obj[1].length; i++) {

                            var obj = {
                                label: Obj[1][i].nome_projeto,

                                data: Obj[1][i].horas
                            };
                            if(nome == Obj[l][i].nome)
                            {
                                soma+=horas;
                            }

                         } 

ps: Ignore where Obj [1] [i] .project_name is written, that's something else. If they can help beauty, if not, ok too :)