JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<table id="test-table" class="bordered responsive-table">
  <thead>
    <tr>
      <th>Build Name</th><th>Base Table</th><th>Query List</th>
    </tr>
  </thead>
</table>

JavaScript

var data ='{"result":{"buildname1":[{"table1":["xxx","yyy"]},{"table2":["xxx","yyy"]},{"table3":["xxx","yyy"]}],"buildname2":[{"table1":["xxx","yyy"]},{"table2":["xxx","yyy"]},{"table3":["xxx","yyy"]}]},"Build sets":"yyy","destinationPath":"xxx","status":1}';


function generateTable(data){ //data is the parsed JSON Object from an ajax request
    $("#test-table tbody").empty();//Empty the table first
    if(data.result != null){
        $.each(data.result,function(key,value){
            var buildName ="<tr><td rowspan='"+value.length+"'>"+key+"<span class='cyan darken-1 white-text badge'>"+value.length+" base tables</span></td>";
            var baseTable ="";
            for(i=0;i<value.length;i++){
                if( i == 0 ){
                    for(var k in value[0]){
                        baseTable ="<td rowspan='"+value[0][k].length+"'>"+k+"</td></tr>";
                    }
                }
                else{
                    for(var key in value[i]){
                        baseTable = baseTable + "<tr><td rowspan='"+value[i][key].length+"'>"+key+"</td></tr>";
                    }
                }
            }
            $("#test-table").append(buildName + baseTable);
        });
    }
}

$(function(){
	generateTable(data);
})