How to get data from database using query with my sql

I have chartjs like this picture

it has code like this

 // Line chart
      var ctx = document.getElementById("lineChart");
      var lineChart = new Chart(ctx, {
        type: 'line',
        data: {
          labels: ["January", "February", "March", "April", "May", "June", "July"],
          datasets: [{
            label: "My First dataset",
            backgroundColor: "rgba(38, 185, 154, 0.31)",
            borderColor: "rgba(38, 185, 154, 0.7)",
            pointBorderColor: "rgba(38, 185, 154, 0.7)",
            pointBackgroundColor: "rgba(38, 185, 154, 0.7)",
            pointHoverBackgroundColor: "#fff",
            pointHoverBorderColor: "rgba(22,22,22,1)",
            pointBorderWidth: 3,
            data: [31, 74, 6, 39, 20, 85, 7]
          }, {
            label: "My Second dataset",
            backgroundColor: "rgba(3, 88, 106, 0.3)",
            borderColor: "rgba(3, 88, 106, 0.70)",
            pointBorderColor: "rgba(3, 88, 106, 0.70)",
            pointBackgroundColor: "rgba(3, 88, 106, 0.70)",
            pointHoverBackgroundColor: "#fff",
            pointHoverBorderColor: "rgba(151,187,205,1)",
            pointBorderWidth: 1,
            data: [82, 23, 66, 9, 99, 4, 2]
          }]
        },
      });

      // Bar chart
      var ctx = document.getElementById("mybarChart");
      var mybarChart = new Chart(ctx, {
        type: 'bar',
        data: {
          labels: ["January", "February", "March", "April", "May", "June", "July"],
          datasets: [{
            label: 'Yes - of Votes',
            backgroundColor: "#26B99A",
            data: [51, 30, 40, 28, 92, 50, 45]
          }, {
            label: 'No - of Votes',
            backgroundColor: "#03586A",
            data: [41, 56, 25, 48, 72, 34, 12]
          }]
        },

        options: {
          scales: {
            yAxes: [{
              ticks: {
                beginAtZero: true
              }
            }]
          }
        }
      });

but I want to use data from database with query, but those codes above the data isnt with query. What should I do to change those codes so that I could take data from database with query? I also want to make the chart that looks like the picture above. I want to make 2 charts that is the chart on the left colomn, and chart on the right colomn. Please help me to solve that problem. Thankyou so much