mysql where子句trim不起作用

Question

+-------------+----------------+-----------------+-----------------+
| tutorial_id | tutorial_title | tutorial_author | submission_date |
+-------------+----------------+-----------------+-----------------+
|           3 | JAVA Tutorial  | Sanjay          | 2007-05-21      |
+-------------+----------------+-----------------+-----------------+

查询

SELECT * from tutorials_tbl WHERE TRIM(tutorial_title)='JAVATutorial';

没有找到记录

Answer 1

尝试使用REPLACE代替TRIM。

SELECT * from tutorials_tbl WHERE replace(tutorial_title,' ','')='JAVATutorial'

Answer 2

我认为您需要Replace而不是Trim

SELECT * from tutorials_tbl WHERE Replace(tutorial_title, ' ', '')='JAVATutorial';

DETAILS

Answer 3

TRIM 仅在开头或结尾处删除不可见的字符（例如空格，制表，断行等）。如果您想要其他空间，则必须使用其他命令，例如替换

SELECT * from tutorials_tbl WHERE REPLACE(tutorial_title)='JAVATutorial';