How to make a data store with tables?

I need a data store that has three tables in it. I have this so far. I don't know how to make it so that it saved tables.

local DATA = game:GetService("DataStoreService"):GetDataStore("SaveNames");

game.Players.PlayerAdded:connect(function(player)
	local blocks = Instance.new("Folder", player)
	local names = Instance.new("StringValue", blocks)
	local positions = Instance.new("IntValue", blocks)
	local sizes = Instance.new("IntValue", blocks)
	blocks.Name = "Blocks"
	names.Name = "Names"
	positions.Name = "Positions"
	sizes.Name = "Sizes"
	if DATA:GetAsync(player.userId) then
		names.Value = DATA:GetAsync(player.userId)[1]
		positions.Value = DATA:GetAsync(player.userId)[2]
		sizes.Value = DATA:GetAsync(player.userId)[3]
	end
end)

game.Players.PlayerRemoving:connect(function(player)if player:FindFirstChild("Blocks") then
		DATA:GetAsync(player.userId, {player.Blocks.Names.Value, player.Blocks.Positions.Value, player.Blocks.Sizes.Value})
	end
end)