如何使用Lua编程语言连接到MySQL数据库?
如果存在好的/受欢迎的图书馆,它是什么?
答案 0 :(得分:6)
LuaSQL的最小woking示例 - 从Lua到DBMS的简单接口。
package.cpath = package.cpath .. ";/usr/lib/i386-linux-gnu/lua/5.1/?.so"
luasql = require "luasql.mysql"
env = assert (luasql.mysql())
con = assert (env:connect("dbname","user","password"))
cur = assert (con:execute("SHOW TABLES"))
row = cur:fetch ({}, "a")
while row do
print(string.format("Name: %s", row.Tables_in_dbname))
row = cur:fetch (row, "a")
end
如果找不到模块luasql.mysql,则使用第1行。也可以使用环境变量LUA_CPATH。
答案 1 :(得分:4)
来自LuaSQL -- Database connectivity for the Lua programming language:
require "luasql.mysql"
env = assert (luasql.mysql())
con = assert (env:connect"my_db")
for id, name, address in rows (con, "select * from contacts") do
print (string.format ("%s: %s", name, address))
end
答案 2 :(得分:3)
如果您的mysql数据库是远程的,您可以添加host作为另一个可选参数来连接。端口也可以跟随主机:
con = assert (env:connect("dbname","user","password","host",port))