Order by count not sorting correctly - SQL (MS Access 2007)

问题

Overview: Compare day to day trades for produce as agent for various accounts to find difference between agent and company holdings showing only what is new; codes in current trades, but not previous trades.

Objective: Sort the trades by code (i.e. apples) with highest frequency.

Current table:

--------------------------------------------------------------------------------------------------------------
|        DATE | ACCT_CODE | TYPE | TYPE_DESCRIPTION |    CODE | DIFFERENCE | AGENT_HOLDING | COMPANY_HOLDING |
--------------------------------------------------------------------------------------------------------------
| 02 Aug 2012 | acc107101 | prod |          produce |   apple |      -1500 |             0 |            1500 |
| 02 Aug 2012 | acc107101 | prod |          produce |   apple |       1500 |          2000 |             500 |
| 02 Aug 2012 | acc107101 | prod |          produce |   apple |          0 |             0 |               0 |
| 02 Aug 2012 | acc107101 | prod |          produce |   apple |          0 |         49797 |           49797 |
| 02 Aug 2012 | acc170000 | prod |          produce |  grapes |       2500 |          2500 |               0 |
| 02 Aug 2012 | acc170000 | prod |          produce |  grapes |      -1500 |             0 |            1500 |
| 02 Aug 2012 | acc008221 | caus |             cash |    cash |          0 |             0 |               0 |
| 02 Aug 2012 | acc008221 | caus |             cash | carrots |          0 |         43273 |           43274 |
| 01 Aug 2012 | acc008221 | caus |             cash |    cash |          0 |             0 |               0 |
| 01 Aug 2012 | acc008221 | caus |             cash | carrots |          0 |         43273 |           43274 |
| 02 Aug 2012 | acc179185 | prod |          produce |   mango |        125 |          2775 |            2650 |
| 02 Aug 2012 | acc179185 | prod |          produce |   mango |     -57646 |        453639 |          511286 |
| 02 Aug 2012 | acc636903 | prod |          produce |   mango |          0 |        481081 |          481081 |
| 02 Aug 2012 | acc001049 | prod |          produce |   mango |       2500 |          2500 |               0 |
| 02 Aug 2012 | acc001189 | prod |          produce |   apple |      -1091 |             0 |            1091 |
--------------------------------------------------------------------------------------------------------------

Code:

SELECT 
    Count(CurrentTrade.Code) AS CountOfCode, 
    CurrentTrade.date, 
    CurrentTrade.Acct_Code, 
    CurrentTrade.Type, 
    CurrentTrade.Code, 
    CurrentTrade.Agent_Holding, 
    CurrentTrade.Company_Holding, 
    CurrentTrade.Difference
FROM CurrentTrade 
LEFT JOIN PrevTrade 
    ON CurrentTrade.Company_Holding=PrevTrade.Company_Holding
WHERE (((PrevTrade.Company_Holding) Is Null) AND ((CurrentTrade.Code)<>'cash'))
GROUP BY 
    CurrentTrade.Code,CurrentTrade.date, 
    CurrentTrade.Acct_Code, 
    CurrentTrade.Type, 
    CurrentTrade.Agent_Holding, 
    CurrentTrade.Company_Holding, 
    CurrentTrade.Difference
ORDER BY count(CurrentTrade.Code) ASC;

Current results:

---------------------------------------------
| COUNTOFCODE |        DATE | TYPE |   CODE |
---------------------------------------------
|           1 | 02 Aug 2012 | prod | grapes |
|           1 | 02 Aug 2012 | prod | grapes |
|           1 | 02 Aug 2012 | prod |  apple |
|           1 | 02 Aug 2012 | prod |  apple |
|           1 | 02 Aug 2012 | prod |  apple |
|           1 | 02 Aug 2012 | prod |  apple |
|           1 | 02 Aug 2012 | prod |  apple |
|           1 | 02 Aug 2012 | prod |  mango |
|           1 | 02 Aug 2012 | prod |  mango |
|           1 | 02 Aug 2012 | prod |  mango |
|           1 | 02 Aug 2012 | prod |  mango |
---------------------------------------------

Issue: How to fix to use correct ORDER BY frequency (apples, mango, grapes)?

回答1:

I think the problem is that you are doing the grouping too granular.

In this case it would probably make sense to exclude the three Amount columns (AgentHolding, CompanyHolding and Difference) from the GROUP BY clause and just aggregate them (sum) in the output.

Here's an example of what this change would produce: http://www.sqlfiddle.com/#!3/fc4d4/7

Note: I left out the left join with the PrevTrade table as I did not know its structure and data, but hopefully this illustrates the intent.

来源：https://stackoverflow.com/questions/12888829/order-by-count-not-sorting-correctly-sql-ms-access-2007

标签

sql-server-2008

ms-access-2007