To avoid the overhead associated with using a table, the application could encode the list of items in some string format and have the procedure decode the string to extract the items.

要避免使用表的相关开销，应用程序可以一些字符串格式对项目列表进行编码，并使存储过程对该字符串进行解码以便提取项目。

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And because decode is a reverse direction procedure, which is more difficult and need more technique and experience, decoders are always advanced developer.

解密是个逆向过程，难度大，需要很多技术和经验，所以进行解密的一般都是精通加密解密的开发人员。

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