need help with query

[G8tors]

I have a fantasy football league that I am keeping stats for in an Access Database. I need help coming up with a way to calclulate the winning % for each team for their entire career. What I have is a table with the following fields:
Fantasy Team
Season
Week
W/L
Own Score
Vs
Opponent
Opponent Score
Game type

The W/L field will either have a W or a L depending if they won or loss, the Vs field will either have a vs or a @ depending if its a home or away game, and the Game Type field tells if it was a regular season game, playoff game, Super bowl game, or Toilet bowl game.

What I have done so far is I created a query on the above table to sort out just the winners and this new table is called Winners. I then created a crosstab query called Winners_Crossta b that counts the number of Wins each team has had for each season. So now I have totals wins. I then did the same thing for losses to end up with a query called Loosers_Crossta b. The last thing I did was to create another query called WinPercentage and added the Winners_Crossta b and Loosers_Crossta b and linked the two tables by Fantasy team. The fields include:
Fantasy Team
Count of Wins
Count of Losses
Win%
The win% field is one I added manually and is a calculation of
wins/(wins+losses)*1 00

This works fine except for when a team has no wins or no losses. If a team went 14-0 then the team doesn't show up in the WinPercentage query. I understand why it doesn't but I don't know how to get around this. I hope I made this clear enough for you to give me some quidance. I am new to databases and just started learning Access about 4 months ago.

Thanks for your help,

Scott

[G8tors]

Sorry, forgot to mention that I'm using Access 2003 and Windows XP professional.

[MMcCarthy]

You need to change the crosstabs so all teams appear even if there are 0 winners or 0 losers. If you want to post the SQL of the crosstab queries I'll have a look at them.

[G8tors]

This is the Crosstab Query I have set up to count the number of superbowl wins for each team.
TRANSFORM Count([SB Wins].[W/L]) AS [CountOfW/L]
SELECT [SB Wins].[Fantasy Team], Count([SB Wins].[W/L]) AS [Total Of W]
FROM [SB Wins]
GROUP BY [SB Wins].[Fantasy Team]
PIVOT [SB Wins].Season;

This is the Crosstab Query I have set up to count the number of superbowl losses for each team.
TRANSFORM Count([SB Losses].[W/L]) AS [CountOfW/L]
SELECT [SB Losses].[Fantasy Team], Count([SB Losses].[W/L]) AS [Total Of L]
FROM [SB Losses]
GROUP BY [SB Losses].[Fantasy Team]
PIVOT [SB Losses].Season;

SB Wins query is setup with the W/L field criteria set to "W" and the SB Losses query is the setup with the W/L field criteria set to "L".

Thank you for taking the time to help me.

[MMcCarthy]

OK the problem here is you have your wins and losses in separate tables. You will need to join both queries to the table which contains all the Fantasy team names. For this example I will use the name Teams for the table. Now change the crosstabs as follows:

TRANSFORM nz(Count([SB Wins].[W/L]),0) AS [CountOfW/L]
SELECT [Teams].[Fantasy Team], nz(Count([SB Wins].[W/L]),0) AS [Total Of W]
FROM [Teams] LEFT JOIN [SB Wins]
ON [Teams].[Fantasy Team]=[SB Wins].[Fantasy Team]
GROUP BY [Teams].[Fantasy Team]
PIVOT [SB Wins].Season;
 

TRANSFORM nz(Count([SB Losses].[W/L]),0) AS [CountOfW/L]
SELECT [Teams].[Fantasy Team], nz(Count([SB Losses].[W/L]),0) AS [Total Of L]
FROM [Teams] LEFT JOIN  [SB Losses]
ON [Teams].[Fantasy Team]=[SB Losses].[Fantasy Team]
GROUP BY [Teams].[Fantasy Team]
PIVOT [SB Losses].Season;
 

[G8tors]

Thanks MMCCARTHY. I haven't tried your code yet but I wanted to let you know that after I read your post about having all the teams appear that made sense. So I deleted the querries I made that seperated the superbowl winners and the super bowl losers (SB Wins and SB Losses) and created a query that contains both wins and losses called SB Games. I then just started trying things and came up with this crosstab query:

TRANSFORM Sum([SB Games].[W/L]="W")*(-1) AS CountOfW
SELECT [SB Games].[Fantasy Team], Sum([SB Games].[W/L]="W")*(-1) AS [Total Of W]
FROM [SB Games]
GROUP BY [SB Games].[Fantasy Team]
PIVOT [SB Games].Season;

The numbers were negative so I multiplied them by -1 and that seemed to work accept for one annoying problem. zeros show up with a negative sign in front of them on my report (ie -0). I did this before I saw your last post. Am I bettter off going with your newest code or do you know how to keep the zeros from showing up as negative zero?


Thanks again

[G8tors]

I went ahead and did what you suggested and it worked great. However, when I create my final query:

SELECT [SB Wins_CrossTab2].[Total Of W], [SB Losses_CrossTab 2].[Total Of L], [SB Wins_CrossTab2].[Fantasy Team], [Total Of W]/([Total Of W]+[Total Of L])*100 AS [win%]
FROM [SB Wins_CrossTab2] INNER JOIN [SB Losses_CrossTab 2] ON [SB Wins_CrossTab2].[Fantasy Team] = [SB Losses_CrossTab 2].[Fantasy Team]
ORDER BY [Total Of W]/([Total Of W]+[Total Of L])*100 DESC;

I get an overflow error. I supsect that is because I have teams that have never been in the superbowl and it is dividing by zero to calculate the win%?

We are close.

[MMcCarthy]

Change it to:

SELECT [SB Wins_CrossTab2].[Total Of W], [SB Losses_CrossTab2].[Total Of L], [SB Wins_CrossTab2].[Fantasy Team], [Total Of W]/nz([Total Of W]+[Total Of L],1)*100 AS [win%]
FROM [SB Wins_CrossTab2] INNER JOIN [SB Losses_CrossTab2] 
ON [SB Wins_CrossTab2].[Fantasy Team] = [SB Losses_CrossTab2].[Fantasy Team]
ORDER BY [Total Of W]/([Total Of W]+[Total Of L])*100 DESC;
 

This will force a divide by 1 when no records found.

[G8tors]

I still get the overflow error. Can we not have zero in the numerator also?

[MMcCarthy]

Try this ...

SELECT [SB Wins_CrossTab2].[Total Of W], [SB Losses_CrossTab2].[Total Of L], [SB Wins_CrossTab2].[Fantasy Team], [Total Of W]/nz([Total Of W]+[Total Of L],1)*100 AS [win%]
FROM [SB Wins_CrossTab2] INNER JOIN [SB Losses_CrossTab2] 
ON [SB Wins_CrossTab2].[Fantasy Team] = [SB Losses_CrossTab2].[Fantasy Team]
ORDER BY [Total Of W]/nz([Total Of W]+[Total Of L],1)*100 DESC;