A Challenge: Need To Write A Difficult Query

Aug 18, 2007

 GO

 CREATE TABLE [dbo].[Product]

 (

  [ProductId] [smallint] IDENTITY(1,1) NOT NULL CONSTRAINT PkProduct_ProductId PRIMARY KEY,

  [Name] [varchar](52) NOT NULL,

  [Type] [smallint] NOT NULL,

 )

For this table

I have to write the query
which will
get the TOP 1 Row of each Type.

I know the alternate way of doing this by union.

But this is not professional.

Can anyone resolve this issue?

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Difficult Query

May 29, 2008

Hey i have a query i need help with.

I have a table where i have 4 columns in it which i need to group together and then sum up a cost column also. I want to sum up the columns where i have a parent and and child and then i want to sum up the other column where i have only a child.
Example of the data is below. I think i need to do this in a sub query

ID Ind Parent Child Cost
P110041012705921.8000
W11004101270595.4500
A110041012705921.8000
B110041012705916.3500
R110041012705916.3500
B0100420043.3000
P0100420043.3000
W0100420021.6500

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Difficult Query Help

Jul 20, 2005

I have a table that stores billing rates for our employees by client.Each employee can have a different billing rate for each client for aspecified period. Here are the columns in the table.eid - Employee ID#cid - Client ID#startdt - start date of billing rateenddt - end date of billing ratebrate - billing rateI need to create a script that will verify that for a given eid, and cidthat either the startdt or enddt for one billing rate, the periods donot overlap.For example, I need to be able to detect overlaps such as this:eid cid startdt enddt brate001 001 1/1/2003 12/31/2003 $50001 001 11/01/2003 04/01/2004 $75*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!

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Jul 20, 2005

suppose I have the following table:CREATE TABLE (int level, color varchar, length int, width int, heightint)It has the following rows1, "RED", 8, 10, 122, NULL, NULL, NULL, 203, NULL, 9, 82, 254, "BLUE", NULL, 67, NULL5, "GRAY", NULL NULL, NULLI want to write a query that will return me a view collapsed from"bottom-to-top" in order of level (level 1 is top, level 5 is bottom)So I want a query that will returnGRAY, 9, 67, 25The principle is that looking from the bottom level up in each columnwe first see GRAY for color, 9 for length, 67 for width, 25 forheight. In other words, any non-NULL row in a lower level overridesthe value set at a higher level.Is this possible in SQL without using stored procedures?Thanks!- Robert

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Nov 13, 2006

Hi.

I am developing for a system that receives an input from an external modem.

The Transaction is split into 2 sections,

Section 1 = grants the transaction ID,

Section 2 = deliver the transaction Data.

I have 2 corresponding tables,

One called tblremoteunitrequestID (Where the transaction ID is granted)

The other called tblremoteunitrequests (Where the transaction is completed, about 1 second later)

I am writing a diagnostic report that determines if the first part of the transaction completes but the second part fails.

I am having difficulties designing the SQL for this.

Here is some sample data for tblremoteunitrequestID: (The first stage of the transaction)

RecordDate | Serial

13/11/2006 14:00:36 0000-0000-0000-0006
13/11/2006 14:00:30 0000-0000-0000-0004
13/11/2006 13:59:04 0000-0000-0000-0092 (This didtn transaction didnt complete)
13/11/2006 12:15:22 0000-0000-0000-0092 (nor did this one)
13/11/2006 10:31:54 0000-0000-0000-0092
13/11/2006 10:00:29 0000-0000-0000-0006

Here is some sample data for tblremoteunitrequests: (The second stage of transaction, 1st stage has to be completed beforehand)

DateReceived | Serial

13/11/2006 14:00:37 0000-0000-0000-0006
13/11/2006 14:00:31 0000-0000-0000-0004
13/11/2006 10:31:56 0000-0000-0000-0092
13/11/2006 10:00:31 0000-0000-0000-0006
13/11/2006 10:00:25 0000-0000-0000-0004
13/11/2006 07:19:13 0000-0000-0000-0020

From this data I can see that serial number 0000-0000-0000-0006 Successfully completed part 1 and part 2 of the transaction, as did serial number 0000-0000-0000-0004.

Serial number 0000-0000-0000-0092 had trouble, it connected at 13:59:04 (tblremoteunitrequestID) but part 2 didnt complete, so it wasent saved in tblremoteunitrequests. The same happened at 12:15:22 but at 10:31:54 it was successful so it was saved.

I Only want to display the transactions that didnt complete, sounds easy huh?

This is what I hope to get in my Results table:

DateReceived | Serial

13/11/2006 13:59:04 0000-0000-0000-0092
13/11/2006 12:15:22 0000-0000-0000-0092

I was experimenting with T-SQL today, this is what I have done so far:

SELECT DISTINCT
TBLRemoteFeildUnitRequestID.Serial, TBLRemoteFeildUnitRequestID.RecordDate,

CASE WHEN TBLRemoteUnitRequests.DateReceived BETWEEN DATEADD(SECOND,-1,TBLRemoteFeildUnitRequestID.RecordDate) AND DATEADD(SECOND,10,TBLRemoteFeildUnitRequestID.RecordDate)

THEN ' Ok'

ELSE ' Not ok'

END AS PROBLEM

FROM TBLRemoteFeildUnitRequestID LEFT OUTER JOIN
TBLRemoteUnitRequests ON TBLRemoteFeildUnitRequestID.Serial = TBLRemoteUnitRequests.Serial
WHERE TBLRemoteFeildUnitRequestID.RecordDate BETWEEN DATEADD(WEEK, - 2, GetDate()) AND GetDate()

ORDER BY RecordDate DESC

This kinda worked, but it caused records that satisfied the between condition to be displayed twice, once as "Ok" and once as "Not ok".

Heres a sample of the result I got:

Serial | RecordDate (1st part of transaction) | Status

0000-0000-0000-0006 2006-11-13 14:00:36.000 Ok (Duplicated)
0000-0000-0000-0006 2006-11-13 14:00:36.000 Not ok
0000-0000-0000-0004 2006-11-13 14:00:30.000 Not ok (Duplicated)
0000-0000-0000-0004 2006-11-13 14:00:30.000 Ok
0000-0000-0000-0092 2006-11-13 13:59:04.000 Not ok (Correct) (Not duplicated)
0000-0000-0000-0092 2006-11-13 12:15:22.000 Not ok (Correct) (Not Duplicated)
0000-0000-0000-0092 2006-11-13 10:31:54.000 Not ok (Duplicated)
0000-0000-0000-0092 2006-11-13 10:31:54.000 Ok
0000-0000-0000-0006 2006-11-13 10:00:29.000 Ok (Duplicated)
0000-0000-0000-0006 2006-11-13 10:00:29.000 Not ok


I have just about had enough, I have wasted an entire day on this

Someone please Help

Dan

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Simple Or Difficult Query

Jul 6, 2005

hello,

I could need some help with a little query.

table "acme"

name1 varchar(128)
name2 varchar(128)
idate datetime

content

A,H,1/1/2005
A,H,2/1/2005
A,I,2/1/2005
A,J,3/1/2005
B,K,4/1/2005
B,L,5/1/2005

I want the following result (for 'A'):

1/1/2005,1
2/1/2005,3
3/1/2005,4

I want to filter for Column "Name1" and cumulative count the entries grouped by date.

what's the simplest solution?

best regards, thilo.

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Sep 20, 2007

I'm writing a workflow management application for my work, and its somewhat complicated, here's a general idea of how it works:

- Anything that a company does is defined by a workflow.
- A workflow consists of tasks.
- Some tasks in a workflow can't be started until other tasks have been completed. If task A can't be started until tasks B and C are finished, then task A depends on B and C.

You might imagine that a bank has a workflow for handling a house loan. Before a bank could sign a contract with an applicant, they'd need proof of house ownership, but before they could get proof of house ownership they need an applicant's proof of identity like a driver's license or military ID.

Here's an oversimplified visual:

Each arrow points to its dependency. Each task can have multiple dependencies.

The setup above is represented in the database by a Tasks and a Dependencies table. Tasks has an ID field, and Dependencies has a TaskID and DependencyID field which are both foreign keys to Tasks.ID.

Code:

[Tasks]
ID Status Name
-- ------ ----
1 Done Start Processing Loan Application
2 Done Photocopy applicant's driver's license
3 NotDone Photocopy proof of house ownership
4 NotDone Get a copy of applicant's W-2 forms
5 NotDone Perform credit check on applicant
6 NotDone Sign loan contract


[Dependencies]
TaskID DependencyID
------ ------------
1 0
2 1
3 1
4 2
5 2
5 3
6 4
6 5


Tasks has a many-to-many relationship with itself.

Here's the hard part:
- A task can't be started until all of its dependencies have been completed.
- after a task is completed (meanings its status is marked "done"), I need to return a list of all the new tasks that are ready to be started.

When TaskID 2 is marked "Done", then TaskID 4 is ready to begin; however, TaskID 5 is not ready to begin since it depends on 2 and 3, and 3 hasn't been completed yet.

The requirements of the query are very simple, but the implementation is difficult.


I'll post a prelimenary solution in the next post:

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Nov 23, 2005

Hello,Here is a brief summary:Table 1 = All Accounts- with fields such as Customer ID and Account #Table 2 = Deposit Balance Table- with fields such as Account #, BalanceTable 3 = Loan Balance Table- with fields such as Account #, BalanceAll accounts are either deposit accounts or loan accounts. What I needto do is to gather information about total balances in both depositsand loans for each customer. I haven't been able to hit the right queryfor doing this. I can easily get information about one or the other,such as the following:SELECT All_Accounts.Customer_ID, COUNT (DISTINCT(Deposit_Balance_Table.Account_Number)), Sum(Deposit_Balance_Table.Balance)FROM Product_Table, Deposit_BalanceWHERE (Product_Table.Account_Number=Deposit_Balance.Acco unt_Number)GROUP BY Product_Table.Customer_ID ORDER BY 1Which will give me one row for each user, and show me the total numberof deposit accounts each customer has and a sum of the balances in eachof those accounts. I can make a similar query involving Loan Accounts.As soon as I try to draw both, however, I wind up below my depth.Something to do with the handedness of my joins, I believe. Often Iwill get one column of information (either deposits or loans), or thequery will fail because the join I'm attempting is invalid, etc. I needto take every row in the All_Accounts table, match each one to itsbalance in either the Deposit or Loan table, and then group them all bythe Customer ID and sum them, so that I can find out the totalrelationship balance per customer. Any help would be appreciated.

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Jul 20, 2005

Hi,I have a table as followingaa Text1 aa, Join Bytes!, 15267aa Text1 aa, Join Bytes!, 16598aa Text1 aa, Join Bytes!, 17568aa Text2 aa, Join Bytes!, 25698aa Text3 aa, Join Bytes!, 12258I have to write a query as follows ...SELECT DISTINCT TOP 500 fldText, fldContact, fldItemidFROM tableWHERE fldCat = 10 AND CONTAINS (fldText, 'Text1')In the example you can see the table has rows in which text and contact ordouble but with different itemid's. Now my employer wants me to show only 1row when text and contact or the same. He doesn't mind which itemid I show.... but I have to show one.I've an idea of how to do this using a cursor and a temporary table but Iguess that will be fatal for the performance because then I have to loopthrough all selected rows, check each row with all other rows and store theprimary key in the temporary table if dedected it isn't double. AfterwardsI can execute ... SELECT ... FROM TABLE where primary key in (selecttemp_primarykey from #temptable).I hoped I could do everything in 1 "easy" SELECT but I should not know how?Any ideas are much appreciated.Thanks a lot.Perre Van Wilrijk.

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Learning SQL: Rather Difficult Query Needed: And If You Know This With Explanation What You're Doing If Possible :)

Jan 7, 2008

If you know the answer please explain what you're doing if possible, that'll help me :)I have the following tables:CREATE TABLE [dbo].[tblUserData](    [UserCode] [int] IDENTITY(1,1) NOT NULL,    [UserName] [nvarchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,    [DisplayName] [nvarchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,) ON [PRIMARY]CREATE TABLE [dbo].[tblFriends](    [UserCodeOwner] [int] NOT NULL,    [UserCodeFriend] [int] NOT NULL,    [createdate] [datetime] NOT NULL CONSTRAINT [DF_tblFriends_createdate]  DEFAULT (getdate())) ON [PRIMARY]in tblFriends relations are stored twice, so for a relation between user 5 and 6, there will be 2 rows: 5-6 and 6-5Now, I want to get the columns (UsercodeOwner,UsercodeFriend,createdate,username,displayname) for relations that were created in tblFriends in the last 10 days for the FRIENDS of a person with usercode 5.Example:tblUserdata5 peter Petertje6 john Johnny11 simon SimonSays15 monique MontjetblFriends5 6 'createdate 30 days ago'5 11 'createdate 5 days ago'6 5 'createdate 30 days ago'6 11 'createdate 3 days ago'6 15 'createdate 7 days ago'11 5 'createdate 5 days ago'11 6 'createdate 3 days ago'15 6 'createdate 7 days ago'The resultset for a query on usercode 5 would now be (usercode1, username1, displayname1,usercode2, username2, displayname2,createdate):6 john Johnny 11 simon SimonSays 'createdate 3 days ago'6 john Johnny 15 monique Montje 'createdate 7 days ago'As you can see each relation is only returned twice even though there are always two entriesWhat would be the SQL statement, if possible without temp table..Thanks!

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Query Challenge

Jun 14, 2001

I have a query that I am trying to optimize. It works on some 9000 records and runs too slow. What the query does is takes the multiple assignment of a single contact record to multiple attributes (a.k.a many-to-many). For example:

Membership table.
Contact_ID
1
2
3

Relate table
1 1
1 3
1 4

Relate Item
1 item1
2 item2
3 item3
4 item4

The query will take all ocurrences of the related items and place them in a single field while delimiting by comma "item1" , "item3", "item4"

Here is the query as it exists now:

select
CONTACT_ID,
UNION_NAME
into #tmp
from MEM_UN MU
inner join MEM_UN_REL MUR
on MU.UNION_ID = MUR.UNION_ID
order by CONTACT_ID, UNION_NAME

create TABLE #unionlist (
CONTACT_ID int primary key,
UNIONS varchar(2000) null)

insert into #unionlist (CONTACT_ID, UNIONS)
select distinct CONTACT_ID, UNIONS = '' from MEMBERSHIP

while exists(select CONTACT_ID from #tmp)
BEGIN
update #unionlist
set UNIONS = UNIONS + '"' + (
select min(UNION_NAME) from #tmp
where #unionlist.CONTACT_ID = #tmp.CONTACT_ID
) + '",'
where CONTACT_ID in (select CONTACT_ID from #tmp)

update #unionlist
set UNIONS = UNIONS + '"",'
where CONTACT_ID not in (select CONTACT_ID FROM #tmp)

delete FROM #tmp where UNION_NAME in (
select min(UNION_NAME) from #tmp tmp2
where #tmp.CONTACT_ID = tmp2.CONTACT_ID
)
END

I believe that the slow down is in the process of deleting from #tmp every time it loops through the recordset.

Any suggestions appreciated,

Thx,

Dave

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Sep 7, 2004

Hello Everybody,

I am attaching a picture of what the table should look like before and after the transformation. Can anybody help? Thank you in advance.

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Jul 20, 2005

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Mar 1, 2006

i query a purchase order table, there is one column called PO_No, format: LP-0245111-0004
i make following statement to query: the middle code act as my id, using it search my records, the last 4 digit used to find the last purchase order number
SqlSelectCommand2.CommandText = "SELECT PO_No FROM [PURCHASE ORDER] WHERE PO_No Like '%" & GetYearCode() & "%' ORDER BY Right(PO_No, 4) DESC"
i checked my database, last record is LP-0545381-0300
in my debuging process, surprisingly found that selected record is LP-0545381-301   !
any one hav any suggestion? ^_^

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Mar 6, 2008

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I need to find out which ones are in the second and third table that do not show up in the first one,
which ones are in the first and third but not in the second,
and which ones are in the first and second but not in the third.

I've come up with quite a few ways of working it but they all involve multiple union statements (or dumping to temp tables) that are joining back to the original tables and then unioning and sorting the results. It just seems like there should be a clean elegant way to do this.

Here is an example:



create table TBL1(PID int, info1 varchar(10) )

Create table TBL2(TID int,PID int)

Create table TBL3(XID int,PID int)


insert into TBL1

select '1','Someone' union all

select '2','Will ' union all

select '4','Have' union all

select '7','An' union all

select '8','Answer' union all

select '9','ForMe'





insert into TBL2

select '1','1' union all

select '2','1' union all

select '3','8' union all

select '4','2' union all

select '5','3' union all

select '6','3' union all

select '7','5' union all

select '8','9'


insert into TBL3

select '1','10' union all

select '2','10' union all

select '3','8' union all

select '4','6' union all

select '5','7' union all

select '6','3' union all

select '7','5' union all

select '8','9'

I need to find the PID and the table it is missing from. So the results should look like:








PID
MISSING FROM

1
TBL3

2
TBL3

3
TBL1

4
TBL2

4
TBL3

5
TBL1

6
TBL1

6
TBL2

7
TBL2

10
TBL1

10
TBL2



Thanks all.

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-------------------------------------------------
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--------------------------------------------------
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CUSTOMER
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Abernathy Construction Willow B
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Manchester LumberManchesterF
Tri-City BuildersMemphis B

ORDERS
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200Abernathy ConstructionJones1800
300Manchester LumberAbel480
400Abernathy ConstructionAbel2500
500Abernathy ConstructionMurphy6000
600Tri-City BuildersAbel700
700Manchester LumberJones150
800 Abernathy Construction Abel 75000

SALESPERSON
NamePercentOfQuotaSalary
Abel63132000
Baker3846200
Jones2649500
Kobad2739600
Murphy4255000
Zenith59129800

I have got the three tables above.
Would you help me to write a SQL query to show the names and PercentOfQuota of sales people who have an order with all cuatomers.
Thank you very much!

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How To Write This SQL Query?

Nov 26, 2003

CUSTOMER
Name City IndustryType
Abernathy Construction Willow B
Amalgamated HousingMernphisB
Manchester LumberManchesterF
Tri-City BuildersMemphis B

ORDERS
NumberCustNameSalespersonNameAmount
100Abernathy ConstructionZenith560
200Abernathy ConstructionJones1800
300Manchester LumberAbel480
400Abernathy ConstructionAbel2500
500Abernathy ConstructionMurphy6000
600Tri-City BuildersAbel700
700Manchester LumberJones150
800 Abernathy Construction Abel 75000

SALESPERSON
NamePercentOfQuotaSalary
Abel63132000
Baker3846200
Jones2649500
Kobad2739600
Murphy4255000
Zenith59129800

I have got the three tables above.
Would you help me to write a SQL query to show the names and PercentOfQuota of sales people who have an order with all cuatomers.
Thank you very much!

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I Appreciate If Anyone Help Me To Write This Query

Apr 5, 2006

User Page Name Permission
vijay customer.aspx 1
vijay customer.aspx 2
vijay customer.aspx 3
vijay user.aspx 2
Rajashekar customer.aspx 1
Rajashekar customer.aspx 2

Where Permission 1 = SAVE
2 = UPDATE
3 = DELLETE

Where I query on User and PageName I want the output as

User Page Name Permission
vijay customer.aspx 1,2,3
vijay user.aspx 2
Rajashekar customer.aspx 1,2

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Better Way To Write This Query?

Feb 23, 2006

i am assuming there is a better way to write this query (since im not too proficient in SQL)


sql Code:






Original
- sql Code





select client_id from clients where client_id not in
(select schedule_det.client_id from schedule_det,
schedule_mstr where schedule_det.schedule_id=schedule_mstr.schedule_id
and schedule_mstr.status_code!='COMPLETE')






 SELECT client_id FROM clients WHERE client_id NOT IN     (SELECT schedule_det.client_id FROM schedule_det,             schedule_mstr WHERE schedule_det.schedule_id=schedule_mstr.schedule_id            AND schedule_mstr.status_code!='COMPLETE') 

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How Do I Write This Query

Nov 30, 2004

ok i have table1, table 2 and table 3.

these table have some common feild names. table1,2 and 3 all have a,b,c and d as field names. each table has other field names too but the ones they all have in common are a,b,c and d.

so i would like to write a query that returns all rows from all 3 tables where column d is greater than 5 and less than 10.

so basically i want it to treat the records from all 3 tables ad one big dataset.

how would i write a query to do this.

i know i could say:
SELECT a,b,c,d
FROM table1,table2,table3

but what gets me is the WHERE clause

do i have to say WHERE table1.d >5 AND table1.d <10 OR table2.d>5 AND table2.d <10 OR table3.d>5 AND table3.d <10

??

any guidance please?

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Help Need To Write A Query

Jun 9, 2008

Hello all,

I need a help to write a query. Here is the table

Declare @Test Table
(
EName Varchar(15)
)

Insert into Ename
Select 'a' Union all
Select 'a' Union all
Select 'a' Union all
Select 'b' Union all
Select 'c' Union all
Select 'b' Union all
Select 'd' Union all
Select 'g' Union all
Select 'g'.

Now i need a result like

a0
a1
a2
b0
b1
c0
d0
g0
g1

Could any one can help me to wite this query..?


Thanks
Lakshmi.S

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Apr 9, 2007

Hi
i want to audit a tables
For That i created audit tables
In that table i want to store data as
all field related to old data table
and from which system user had changed the data

For this system id i used host_id() but the iam not getting the id



Malathi Rao

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Jan 28, 2008

I have a table with many records in it. There is one field called "Nature". How would I select the value that appears the most often in the "Nature" field? The nature field contains text.

For example, this code selects those with more than 10 records...

I just want the top record.

SELECT count(*) FROM WEBASGN_FULL GROUP BY NATURE HAVING count(*) > 10

Basically select nature from webasgn_full that occurs the most often in the table....

Thanks

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How Best To Write This Query?

Oct 19, 2007

I need help on writing a query which will return my results as I need them.

I have three tbls.

TimeType, TimePlan and TimeSpent

TimeType simply lists the Individual Jobs (types) a user can be doing.

The TimePlan and Time Spent each list individual records with start and end dates and what TimeType was being performed.
Each TimeType can have multiple starting and ending dates for the TimePlan and Timespent.

I need my results to show individual timetypes, with the starting and end dates for the Timeplans and also the TimeSpent

EG:

TypeType | TimeplanStart | TimeplanEnd | TimeSpentStart | TimeSpentEnd

Writing | 01/02/2007 | 02/02/2007 | |
Writing | | 03/02/2007 |

So there will be multiple Types, and for each one I need to show the start and end dates.

I would normally write this as three seperate queries.

The first would get the TimeTypes,
The second the TimePlan starting and ending dates for that type,
The third , the Spent starting and ending dates for that type


However that doesn't come across as very efficient so I wonder if there was any other alternative

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Nov 2, 2006

Please help me to get this result
 
Bellow is my requirement
I have employee table which stored employee information
And I have reference table which holds information for that employee reference
 
I need to count from the reference table like how many reference made for male Employee and female depending on their age range
 
 
 
I have a selection list: Gender: Male
                                                  Female
                                                  All
 
When user select                      : Male from the list
 
Male    Female                         Age range: 20-29         Age range: 30-45
120      0                                              100                              20
 
When user select                      : Female from the list
 
Male    Female                         Age range: 20-29         Age range: 30-45
0          25                                            15                                10
 
When user select                      : All from the list
 
Male    Female                         Age range: 20-29         Age range: 30-45
120      25                                            115                              30
 
 
Please help me to sort out this problem
regards
Sujithcf

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