How to lead when having distance

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SQL-Server-2008R2

hello there
need your help for following problem if m having a master table as
<pre>
Lead_ID	Lead_Name(KM)
0	    1-8
1	    1-25
2	    1-50
3	    1-100
4	    1-150
5	    1-200
7	    1-300

and another table for distance , as

SocId      GdnID        Distance(KM)
x           Y             20
A           B             30
C           D             15
E           F             4

Now i need to get the lead id from 1st table
such as if i get the distance = 4 then lead id will be 0 as it is between 1-8 and no need to check in 1-25, 1-50, 1-100 ...so on
similar if i get the distance = 20 then lead id will be 1 as it is between 1-25 and no need to check in 1-50 ...so on
similar if i get 35 then lead id will be 2 as it is between 1-50 and no need to check in 1-100 ...so on

What I have tried:

tried with temp table eliminate after - and check with digit wheather value is low or high, but i takes a long time as i m using loop

Posted 22-Apr-19 3:22am

Anuragintit

Updated 22-Apr-19 4:06am

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2 solutions

Solution 1

That's what happens when you use silly codes.

You're dealing with "ranges":
0: 1,8
1: 9,25
2: 26,50
etc.

You add those "high and low" values to your lookup table, and compare "between".

Posted 22-Apr-19 3:34am

Gerry Schmitz

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OriginalGriff · Accepted Answer · 2019-04-22T04:06:00

Solution 2

Don't store data as strings, unless they genuinely are and will always be treated as, strings. Name, Addresses, phone numbers - they are all strings.
"1-8", "1-25" and so forth aren't, because you want to treat them as numbers in order to find out if something is in a range.
So store them as two separate numbers!

LeadID LeadMin LeadMax
0            1       8
1            9      25
2           26      50
...

Now, your problem becomes trivial:

SQL

SELECT LeadID FROM MyTable WHERE value BETWEEN LeadMin AND LeadMax

Posted 22-Apr-19 4:06am

OriginalGriff

Comments

Anuragintit 23-Apr-19 4:06am

sorry for previous comment, i think it is helpful , let me try..thankss..........

OriginalGriff 23-Apr-19 4:17am

You're welcome!
(I was just trying to work out what your comment meant!)

Anuragintit 23-Apr-19 5:35am

Many Thanks @OriginalGriff, working fine....

OriginalGriff 23-Apr-19 5:45am

:thumbsup: