Case of the curious query ; count the codes

  • Thread starter Thread starter barret bondon
  • Start date Start date
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barret bondon

Trying to get a count of the number of records for each code; that is: 90000
records with a code field; some code "a" records have 1000 records and some
code "b" records have 20000 records; I'd like to know !
In other words; ther are perhaps 20 codes; there is a "code" field with
these repeating codes; I'd like a count of how many records contain code "c"
and how many have code "d", etc.
I've tried this , and many many other variations !

SELECT contacts.code Count(contacts.code) AS CountOfItemName
FROM
(SELECT DISTINCT code ) As q
GROUP BY code;
 
Trying to get a count of the number of records for each code; that is: 90000
records with a code field; some code "a" records have 1000 records and some
code "b" records have 20000 records; I'd like to know !
In other words; ther are perhaps 20 codes; there is a "code" field with
these repeating codes; I'd like a count of how many records contain code "c"
and how many have code "d", etc.
I've tried this , and many many other variations !

SELECT contacts.code Count(contacts.code) AS CountOfItemName
FROM
(SELECT DISTINCT code ) As q
GROUP BY code;
Click to expand...

Sounds like you don't really want to count *codes*; you want to count *records
for each code*. If that's the case lose the subquery:

SELECT code, Count(*) AS CountOfCodes
FROM yourtablename
GROUP BY code;

As written your query makes no sense, since neither the query nor the subquery
references a table.
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barret said:
Trying to get a count of the number of records for each code; that
is: 90000 records with a code field; some code "a" records have 1000
records and some code "b" records have 20000 records; I'd like to
know ! In other words; ther are perhaps 20 codes; there is a "code" field
with these repeating codes; I'd like a count of how many records
contain code "c" and how many have code "d", etc.
I've tried this , and many many other variations !

SELECT contacts.code Count(contacts.code) AS CountOfItemName
FROM
(SELECT DISTINCT code ) As q
GROUP BY code;
Click to expand...
You're overcomplicating it. This should do what you want:

SELECT code, count(*) As CountPerCode
FROM Contacts
GROUP BY code
 
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