Question

我有一个MySQL查询

select query from HR_Health_Logs where query REGEXP 'CPU|MAC|PC|abacus|calculator|laptop|mainframe|microcomputer|minicomputer|machine';

除了正则表达式更长，并且包含许多同义词和拼写错误。

我需要缩短这个简短的内容，并有一个包含所有同义词和拼写错误的表格，以便我可以避免这个非常长的查询。所以我正在寻找像

这样的东西

select query from HR_Health_Logs where query REGEXP '**HAVE A TABLE WITH ALL MY SYNONYMS AND MISSPELLINGS SEARCHED HERE**';

Answer 1

ANY function怎么样？

select query from HR_Health_Logs where query REGEXP ANY (SELECT spell FROM misspelled WHERE correct = 'masturbate' ) ;

Answer 2

SELECT  query
FROM    HR_Health_Logs l, synonym s
WHERE   l.query = s.synonym

Answer 3

SELECT query
FROM HR_Health_Logs
WHERE query IN (
  SELECT synonym AS query
  FROM synonyms_table
  WHERE word = 'masturbation'
  UNION
  SELECT misspelling AS query
  FROM misspellings_table
  WHERE word = 'masturbation'
)

假设您的同义词和拼写错误位于两个单独的表中。否则，您将只使用其中一个子查询并删除UNION。

MySQL搜索优化（用子查询替换长正则表达式）

3 个答案: