lua连接sqlserver

与 luamysql 的用法很类似

LuaJIT-2.1.0-beta2
sqlserver

仅仅用于windows平台的lua脚本,访问数据库

链接数据库   connect
关闭链接     close

查询数据库   query
执行sql语句  execute(insert,update,exec proc )

获取记录集数据  cur:fetch({},'a')

local libsql = require('luasqlserver')
local cjson = require('cjson')


local function get_conn()
    local env = libsql.mssql()
    local strfmt = "Provider=SQLOLEDB.1;Data Source=%s;database=%s;uid=%s;pwd=%s"
    local strval = string.format(strfmt,"127.0.0.1","testDemo","sa","sa")

    local conn, ret = env:connect(strval,5)
    env:close()
    return conn, ret
end

local function test_mssql_select(conn)
    local res, rows, err,exp = conn:query("select top 2 * from sysobjects  ")
    print(res, rows, err,exp)
    if type(res) == "userdata" then
        -- local ok, err = res:getcolnames()
        -- print(ok,err)
        -- print(cjson.encode(ok))
        -- local ok, err = res:getcoltypes()
        -- print(cjson.encode(ok))
        local rows = res:numrows()
        print("rows",rows)
        local ret, err, ex  = res:fetch({}, 'a') or {}
        print(ret, err, ex)
        if type(ret) == "table" then
            print("=====",#ret)
        end
        print(cjson.encode(ret))
        res:close()
    end
end



local function test_mssql_insert(conn)
    local cur_time = os.time()
    local fmt = "insert into luaTestUser(card,crc32,idx,createTimestamp,updateTimestamp,createTime,updateTime,amount,remark)" ..
                    "values('%s',0,1,%d,%d,getdate(),getdate(),0,'xxx')"
    local sql = string.format(fmt,cur_time,cur_time,cur_time)
    conn:begintrans()
    local rs,row,err,exp = conn:execute(sql)
    ---conn:rollback()
    conn:commit()

    if type(rs) == "userdata" then
        local res,err = rs:fetch({},'a')
        print(res)
        if type(res) == "table" then
            print(cjson.encode(res))
        end
        rs:close()
    end

    print(rs,row,err,exp)
    return ok, err
end

local function test_mssql_update(conn)
    local sql = string.format("update luaTestUser set updateTimestamp=%d where card ='1470133708' ", os.time())

    print(sql)

    conn:begintrans()
    local rs,row,err,exp = conn:execute(sql)
    -- conn:rollback()
    conn:commit()

    print(rs,row,err,exp)
    return ok, err
end


local function test_mssql_delete(conn)
    local sql = string.format("delete from luaTestUser  where card ='1470133924' ", os.time())

    print(sql)

    conn:begintrans()
    local rs,row,err,exp = conn:execute(sql)
    -- conn:rollback()
    conn:commit()

    print(rs,row,err,exp)
    return ok, err
end

local function test_mssql_proc(conn)
    local sql = string.format(" exec sp_test_proc 10 ", os.time())

    print(sql)

    -- conn:begintrans()
    local rs,row,err,exp = conn:execute(sql)
    -- conn:rollback()
    -- conn:commit()

    if type(rs) == "userdata" then
        local ret,err = rs:fetch({},'a')
        if type(ret) == "table" then
            print(cjson.encode(ret))
        end
    end

    print(rs,row,err,exp)
    return ok, err
end


local function test_main()
    local conn, err = get_conn()
    if not conn then
        print('error')
        return 
    end

    -- test_mssql_select(conn)
    -- test_mssql_insert(conn)
    -- test_mssql_update(conn)
    -- test_mssql_delete(conn)
    test_mssql_proc(conn)

    conn:close()
    print("ok")
end

test_main()