SQL - 如何在 WHERE 子句中避免多个 OR 运算符？

Question

sqlite> .schema movie
CREATE TABLE movie (
  id INTEGER PRIMARY KEY, title TEXT, year INTEGER, nth TEXT, for_video BOOLEAN
  );
sqlite>
sqlite>
sqlite>

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For the question:

Which movie(s), not counting movies whose titles start with punctuation, come first in alphabetical order, and which come last?

below syntax:

SELECT title 
FROM movie 
WHERE NOT(title LIKE '%!%' or title LIKE '%#%' or title LIKE '%$%')  
ORDER BY title ASC LIMIT 1;

has never ending or operators.

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Syntax should work in mysql and sqlite

How to avoid multiple OR operators that check for punctuations? yet to add more OR operators for punctuation check...

Answer 1

For th first part (multiple ORs). Also note that the syntax is different for the join ( Like )

You can create a table for punctuations and add the data into it

 Create table Punctuations (punckSign varchar(10))

 insert into Punctuations
 values ('!'), ('#'), ('$')

Then left join that with movie table as follows

MySQL

 SELECT title FROM movie m
 Left join Punctuations p 
 on  title  like concat('%',p.punckSign,'%')  
 where p.punckSign is null

SQLite

 SELECT title FROM movie m
 Left join Punctuations p 
 on  title  like '%'|| p.punckSign || '%'  
 where p.punckSign is null

Answer 2

Try the below using REGEXP

SELECT title 
FROM movie 
WHERE title not REGEXP '!|#|$'
ORDER BY title ASC LIMIT 1;