Can't Join This Query

Jul 21, 2004

I really need some help. I'm going nuts. I been trying to get this to work all morning and i cant get it it work. the simple version is I am trying to join these two sql queries and make them one.


Code:


SELECT news. * , CONCAT( users.user_fname, " ", users.user_lname ) AS org_author
FROM news
LEFT JOIN users ON news.news_author = users.user_id
WHERE news_id =41

SELECT CONCAT('users.user_fname', 'users.user_lname') *AS edit FROM users WHERE users.user_id=54



my previous attempts are

trouble with query.

I have a news table which has the ID of the original author and a column for the author who last edits the news article. both columns store the id of the author.

now when I'm editing the article I want to get the name of the author from the users table.

I have done a left join to get the first author (original author) but I'm having a real hard time trying to get the name of the author who last edited the record.

they both need to lookup the user_fname and user_lname fields from the users table.

my current sql is below


Code:

SELECT news.*, CONCAT(users.user_fname, " ",users.user_lname) AS org_author FROM news LEFT JOIN users ON news.news_author=users.user_id WHERE news_id=41



which gives me

Code:

news_id *news_subject *news_article *news_author *news_date *news_edited *edit_author *org_author *
41InterclubBunbury IC club has asked us all to attend a inter...771090247547109041836254Adam Green



Now how do i adapt it to get the name of the author to last edit the article? do I do a sub query another left join ???
every way I try doesn't work.

this is what I'm currently trying to get it with.


Code:


SELECT news. * , CONCAT( users.user_fname, " ", users.user_lname ) AS org_author
FROM news
LEFT JOIN users ON news.news_author = users.user_id
LEFT JOIN (

SELECT CONCAT( users.user_fname, " ", users.user_lname ) AS edit_author
FROM news
WHERE news.edit_author = users.user_id
)
WHERE news_id =41




Heres a different approach that I thought would work


Code:


SELECT news. * , CONCAT( users.user_fname, " ", users.user_lname ) AS org_author
FROM news
LEFT JOIN users ON news.news_author = users.user_id
LEFT JOIN (

SELECT concat( users.user_fname, users.user_lname ) AS edit
FROM users
WHERE users.user_id =54
) AS edit
WHERE news_id =41



but no i get this error

Code:


MySQL said:

#1064 - You have an error in your SQL syntax near '(
SELECT concat( users.user_fname, users.user_lname ) *AS edit
FROM users
WHERE' at line 4



I also tried


Code:


SELECT news.*, CONCAT(users.user_fname, " ",users.user_lname) AS org_author, *(SELECT concat(users.user_fname, users.user_lname) AS edit from users where users.user_id=54) AS edit FROM news LEFT JOIN users ON news.news_author=users.user_id
WHERE news_id=41



but got this error

Code:


MySQL said:

#1064 - You have an error in your SQL syntax near 'SELECT concat( users.user_fname, users.user_lname ) *AS edit
FROM users
WHERE us' at line 2



can anyone help me with this query its been driving me up the wall all morning.

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There may be a source_Code with an import_Date in the first table, this source_code can be present in the second table but not with all the same Import_Dates.

@tblBestBidsForToday
Security_ID source_code Best_Bid Import_Date
125 TR73 112.6250 2007-11-28 07:23:00
125 TTFN03 112.8750 2007-11-28 07:25:00
125 TTFN03 112.8750 2007-11-28 07:27:00
125 TTFN03 112.8750 2007-11-28 07:29:00
125 GFI01 112.9370 2007-11-28 07:31:00
125 GFI01 112.9370 2007-11-28 07:33:00
...
...

@tblBestAsksForToday
Security_ID source_code Best_Bid Import_Date
125 GFI01 113.1250 2007-11-28 07:29:00
125 GFI01 113.0620 2007-11-28 07:31:00
125 GFI01 113.0620 2007-11-28 07:33:00
125 GFI01 113.0620 2007-11-28 07:35:00
125 GFI01 113.0620 2007-11-28 07:39:00
125 GFI01 113.0620 2007-11-28 07:41:00
...
...


CURRENT RESULT (which is not quite correct):
Note, in @tblBestAsksForToday, this record does not appear in the RESULT
125 GFI01 113.1250 2007-11-28 07:29:00


RESULT
125 TR73 112.6250 NULL 2007-11-28 07:23:00
125 TTFN03 112.8750 NULL 2007-11-28 07:25:00
125 TTFN03 112.8750 NULL 2007-11-28 07:27:00
125 TTFN03 112.8750 NULL 2007-11-28 07:29:00
125 GFI01 112.9370 113.0620 2007-11-28 07:31:00
125 GFI01 112.9370 113.0620 2007-11-28 07:33:00

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JOIN Query

Mar 31, 2008



I am trying to create a query containing specific information. Let me explain...

I have the following tables:

Checkout Table contains the following fields:

CheckoutID
CheckoutDate
ClearanceCost
PaymentMethodID
OperatorID


PaymentMethod table contains the following fields:

PaymentMethodID
PaymentMethod
ClearanceCharge

ProductSale table contains the following fields:


ProductSaleID
UnitCost
CheckoutID

Assume the PaymentMethod table contains the following data:

PaymentMethodID PaymentMethod ClearanceCharge
1 Cash 0
2 Maestro Dom 0.565
3 Electron 0.35
4 Solo 0.345
5 Visa Delta 0.37
6 Mastercard 0.195
7 Visa 0.195
8 Amex 0.266


I want to calculate sum(ProductSale.UnitCost) where PaymentMethod is NOT equal to Cash or Amex. I have mocked this up and it seems to work:




Code SnippetSELECT Checkout.CheckoutDate, Sum(ProductSale.UnitCost) AS ValueOfSales, Count(*) AS NumberOfSales, Sum(Checkout.ClearanceCost) AS StreamlineCost
FROM Operator INNER JOIN (Checkout INNER JOIN ProductSale ON Checkout.CheckoutID = ProductSale.CheckoutID) ON Operator.OperatorID = Checkout.OperatorID
WHERE (((Checkout.PaymentMethodID)=2 Or (Checkout.PaymentMethodID)=3 Or (Checkout.PaymentMethodID)=4 Or (Checkout.PaymentMethodID)=5 Or (Checkout.PaymentMethodID)=6 Or (Checkout.PaymentMethodID)=7))
GROUP BY Checkout.CheckoutDate ORDER BY Checkout.CheckoutDate DESC;





I also want to calculate sum(ProductSale.UnitCost) where PaymentMethod=Amex. Again, I have mocked this up and it seems to work:




Code SnippetSELECT Checkout.CheckoutDate, Sum(ProductSale.UnitCost) AS ValueOfSales, Count(*) AS NumberOfSales, Sum(Checkout.ClearanceCost) AS AmexCost
FROM Operator INNER JOIN (Checkout INNER JOIN ProductSale ON Checkout.CheckoutID = ProductSale.CheckoutID) ON Operator.OperatorID = Checkout.OperatorID
WHERE (((Checkout.PaymentMethodID)=8))
GROUP BY Checkout.CheckoutDate
ORDER BY Checkout.CheckoutDate DESC;





These queries only return results where the ValueOfSales and NumberOfSales is not zero... i would like them to return results for each day even if the result is zero...

Also, I want the results from both queries as one result set i.e. I want the results to look like:

Checkoutdate ValueOfSales NumberOfSales StreamlineCost AmexCost
2008.01.27 200.00 5 14.95 0.00
2008.01.28 235.64 7 15.98 1.45
...

I want two extra columns to be displayed ... even though their values might be zero for a particular day.

Any help appreciated...

Thanks

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Apr 3, 2007

I have 2 tables, my vehicle data table and my config table. I need a
query to join them by a datarow and a data column. Heres my tables...config table--------------------id   name   type--------------------1    make   varchar2    model  varchar3    color  varcharveh table--------------------------id   make   model   color--------------------------1    chevy  s10     white2    ford   ranger  silver2    chevy  blazer  brownrecordset needed for veh.id=1---------------------------id   name   type     value---------------------------1    make   varchar  chevy2    model  varchar  s103    color  varchar  white  Thanks for any helpRyan 

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