Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

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

mysql - SQL NOT BETWEEN query

Thanks in advance for any advice or tips!

I have a booking table in a mysql database, table1. It contains a start date and a finish date. I have another table, table2 which contains the information I need to get but only when a specific date does NOT reside between any of the dates from any rows in table1.

An example;

select table2.testfield
FROM table2, table1
WHERE '2011-02-24 18:00:00'
NOT BETWEEN table1.start 
AND table1.finish

However I cannot get it to work! Any suggestions?

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 Answer

0 votes
by (71.8m points)

This should work but should look something more like

select table2.testfield
FROM table2, table1
WHERE table1.YourField = '2011-02-24 18:00:00' 
AND
NOT BETWEEN table1.start AND table1.finish

This also presumes that your table1.start and table1.finish fields are of type DateTime. If they aren't you could try Casting the fields

select table2.testfield
    FROM table2, table1
    WHERE table1.YourField = '2011-02-24 18:00:00' 
    AND
    NOT BETWEEN Cast(table1.start as DateTime) AND Cast(table1.finish As DateTime)

Edit Looking at your question I realized that the date probably isn't a database value :) so your method should work but you may need to cast the string to a datetime.


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 OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

2.1m questions

2.1m answers

60 comments

57.0k users

...