MySQL中的REGEXP

Question

I have a database of all english language words. I want to find regular expression for particular alphabets. like for example if i ask for the regular expression for "eta", it should return all the words who have 'e','a' and 't' in any combination. but when I run the following code

SELECT word FROM wordlist
WHERE 
word REGEXP 'eta';

it return words like 'beta,caretake,detach etc....'
how to use regexp in its true spirit in mysql. Thanks in Advance

Answer 1

SELECT  word
FROM    wordlist
WHERE   word REGEXP 'e'
        AND word REGEXP 'a'
        AND word REFEXP 't'

Answer 2

尝试：

SELECT word FROM wordlist WHERE word REGEXP '(e|t|a)'