How to use alphanumeric fields with BETWEEN clause in Mysql?

问题

I have a table that contain a field names as mgrs, the value that stored in mgrs fields is like '42SWC227821555' may contain more charachters, and may contain lower case letters. So now i want to search records between two mgrs, so how can i do that? can i convert mgrs value to integer first and then use in between clause?

回答1:

Instead of BETWEEN clause use STRCMP(expr1, expr2) function for string comparison operations:

WHERE STRCMP(mgrs, '42SWC227821555') >= 0 AND STRCMP(mgrs, '42SWC227821570') <= 0

回答2:

I will list some steps, instead of complete answer.

1. Remove all alphabets from you value, means you can have 1 more customized column using function listed on this link
2. Apply your filter on this column.

回答3:

You can use string expressions with BETWEEN comparison.

SELECT '42SWC2278215551' BETWEEN '42SWC227821555' AND '42SWd227821555'
-> 1

来源：https://stackoverflow.com/questions/25842771/how-to-use-alphanumeric-fields-with-between-clause-in-mysql