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SQL breakdown of data
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À
08/03/2017 12:59:05
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
01648857
Message ID:
01648859
Vues:
87
>>Hello,
>>
>>I have a table with 1,500 records and with one column: ID, comprised of numeric data ranging from 1 - 1,591. As the
>>numbers get higher, the frequency of their appearance increases. But what's important, is not so much any given value
>>but how many numbers appear within a given range. And yes, I am trying to figure out a cutoff point that will separate
>>this table into the numbers that appear with the highest frequency (they happen to be larger numbers, in this table)
>>and numbers that appear less frequently (they happen to be smaller numbers.)
>>So, I want to know if certain values appear more often than others, kind of like a heat map, except the response would
>>be in a tabular form rather than in graphic.. Is there a way to use an SQL statement to do this? Can I preselect
>>the number of ranges and their size, for example: break the table up into 20 ranges. But I can't know
>>which values each of the 20 ranges will have in advance? I know it's a vague question but I wondered
>>what you all might say as this kind of question is coming up a lot.
>>
>>Thank you,
>>Steve
>
>Hi, Steve,
>
>Can you post the table structure (at least for the relevant columns)?

table name: MY_IDS
field name: ID
data type: numeric
range of values in ID: 1 - 1,591
number of rows: 1,500

(I tried to upload the dbf but the system won't allow it.)
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