SQL LIKE操作

Question

我想要做這樣的事情：

SELECT * 
FROM 
    dictionary t1, 
    dictionary t2 
WHERE t1.category <> t2.category 
    AND t1.tag <> t2.tag 
    AND t1.word LIKE '% t2.word %'; 

如何編寫SQL的'% t2.word %'部分得到正確的結果？

Answer 1

select * 
    from dictionary t1, 
     dictionary t2 -- <- Is there an intentional Cartesian Join? 
    where t1.category <> t2.category and 
     t1.tag <> t2.tag and 
     t1.word like '% ' || t2.word || ' %'; -- <- check spaces! 

Answer 2

您需要使用該列。

select * 
from dictionary t1, dictionary t2 
where t1.category<>t2.category and t1.tag<>t2.tag and t1.word like '% ' + t2.word + ' %'; 

Answer 3

select * 
from dictionary t1, dictionary t2 
where t1.category<>t2.category and t1.tag<>t2.tag and t1.word like '%'+ t2.word +'%'; 

Answer 4

這是你在找什麼：

select * 
from dictionary t1, dictionary t2 
where t1.category<>t2.category and t1.tag<>t2.tag and t1.word like '% ' + t2.word + ' %';