Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
371 views
in Technique[技术] by (71.8m points)

php - mysql - SELECT UNTIL in sql

I want to select rows until I found a certain value and it's not numeric so I cannot use > or <. How can I do this ?

Example :

-----
Value
-----
45
434
348
213
543
3445
343
123
34345

I want to select all records before 543 (NOT ORDERED BY anything)

Thanks in advance

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

This answer might be late, but since it's the first result on google with term of 'mysql select until' hope this might help someone.

What you can do is declare a marker and if you found the value needed, set the marker to any value other than NULL. Then we can use ISNULL for checking if we have reached the row.

SET @marker = NULL;
SELECT value FROM table1 WHERE ISNULL(@marker:=IF(value=543,value,@marker));

Here is a demo


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

Just Browsing Browsing

[4] html - How to create even cell spacing within a

1.4m articles

1.4m replys

5 comments

57.0k users

...