English 中文(简体)
我在客户代码中应当储存什么指数?
原标题:What should I store as my index in client code?

使用谷歌应用器和存储器的Im。 此前,我正在使用MySQL,为我的用户Id领域使用自动加固装置,但现在GAE汽车为每个新实体I仓库生成钥匙,例如g5kZXZ-aGVsbG93b3JsZHIKCxIEVXNlchgNDA,但也自动生成自动加固式识别器。

我在客户代码中应当使用什么来储存用户 Id? 是否在利用GAE产生的长期关键因素方面有任何好处,或者在业绩和寻找方面利用小型的内联网? 是否有比其他好处,或者实际上没有任何区别?

Edit: Sorry my question was not clear enough. Here s what I m asking: It s not about length, but does having the lookup key put me a step ahead of not having it? Because if I wanted to look up a user, I d have to look him up by email, but now that I have the key for that row in the "table", does this give me any sort of advantage?

最佳回答

Either one is fine, there s no performance difference between using a long string of letters or a short one to identify users.

问题回答

Remember that the generated entity ID is not guaranteed to be a monotonically increasing value.





相关问题
SQL SubQuery getting particular column

I noticed that there were some threads with similar questions, and I did look through them but did not really get a convincing answer. Here s my question: The subquery below returns a Table with 3 ...

please can anyone check this while loop and if condition

<?php $con=mysql_connect("localhost","mts","mts"); if(!con) { die( unable to connect . mysql_error()); } mysql_select_db("mts",$con); /* date_default_timezone_set ("Asia/Calcutta"); $date = ...

php return a specific row from query

Is it possible in php to return a specific row of data from a mysql query? None of the fetch statements that I ve found return a 2 dimensional array to access specific rows. I want to be able to ...

Character Encodings in PHP and MySQL

Our website was developed with a meta tag set to... <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> This works fine for M-dashes and special quotes, etc. However, I ...

Pagination Strategies for Complex (slow) Datasets

What are some of the strategies being used for pagination of data sets that involve complex queries? count(*) takes ~1.5 sec so we don t want to hit the DB for every page view. Currently there are ~...

Averaging a total in mySQL

My table looks like person_id | car_id | miles ------------------------------ 1 | 1 | 100 1 | 2 | 200 2 | 3 | 1000 2 | 4 | 500 I need to ...

热门标签