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MYSQL BLOB vs TEXT字段与搜索查询

[英]MYSQL BLOB vs TEXT Field with search query

原文 2019-06-28 03:29:45 1 1 mysql/ database/ search/ mariadb/ blob

I am designing a mysql database and I need your help, please. 我正在设计一个mysql数据库，需要我的帮助。 I have a table with large texts (from internet, word, emails...) and I will do search in these texts. 我的桌子上有大文本（来自互联网，单词，电子邮件等），我会在这些文本中进行搜索。 For example, I need to know all the texts that contains the world 'Fox'. 例如，我需要知道包含世界“ Fox”的所有文本。 Most of the access of the table will be for reading, but sometimes I will need updates. 对该表的大部分访问将用于读取，但有时我需要更新。 And because of these I have 2 questions: 由于这些原因，我有两个问题：

1) Which one is better for this situation : BLOB or TEXT? 1）对于这种情况，哪种更好：BLOB或TEXT？ 2) Is it better to build 2 separate tables with one containing the texts that will never be updated (those from internet, for example) and the other with the texts that the user will update? 2）最好用两个单独的表构建一个表，其中一个包含永远不会更新的文本（例如，那些来自Internet的文本），另一个包含用户将更新的文本？ And if the answer to this question is YES, which one i shall use in each table? 如果对这个问题的回答是“是”，那么我将在每个表中使用哪个？

Thank you very much ! 非常感谢你！

1 个解决方案

As for BLOB vs TEXT , it depends on the contents you expect. 至于BLOB vs TEXT ，则取决于您期望的内容。 I would think TEXT CHARACTER SET utf8mb4 would be appropriate for today. 我认为TEXT CHARACTER SET utf8mb4适合今天。

As for the other questions; 至于其他问题； it sounds like "premature optimization". 听起来像“过早的优化”。 Do whatever is simpler for now. 现在就做些更简单的事情。 But plan to revisit performance and other issues after you have enough data to test with. 但是，在您有足够的数据可用于测试之后，请计划重新考虑性能和其他问题。