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#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <unistd.h> // for close
#include <arpa/inet.h> // for inet_ntop
#include <errno.h> // for errno

kinbei

SQL languages

DDL is short name of Data Definition Language, which deals with database schemas and descriptions, of how the data should reside in the database.

DML is short name of Data Manipulation Language which deals with data manipulation, and includes most common SQL statements such SELECT, INSERT, UPDATE, DELETE etc, and it is used to store, modify, retrieve, delete and update data in database.

DCL is short name of Data Control Language which includes commands such as GRANT, and mostly concerned with rights, permissions and other controls of the database system.

Datatypes

Text types

kinbei

local skynet = require "skynet"
local socket = require "skynet.socket"

local db_path = assert(skynet.getenv "cache_db") .. "/"

local mode = (...) or "main"

local function tohex(c)
	return string.format("%02x", c:byte())
end

kinbei

local core = require "ecs.core"

local ecs = {}

local entities = {}	-- all Entities, eid -> entity
local entity_id = 0
ecs.entities = entities

-- cset: component set
local cset = { __mode = "kv" }

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base_type=class()		
 
function base_type:ctor(x)	
	print("base_type ctor")
	self.x=x
end
 
function base_type:print_x()	
	print(self.x)
end

kinbei

local _class={}
 
function class(super)
	local class_type={}
	class_type.ctor=false
	class_type.super=super
	class_type.new=function(...) 
			local obj={}
			do
				local create

kinbei

// C# example
using UnityEditor;
using System.IO;
using System.Collections;
using UnityEngine;
using System.Collections.Generic;

class PerformBuild
{
    static string[] GetBuildScenes()