Plz Solve For This Tasks

could some one help in giveing solution for this tasks..
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Task 1 : Get the first day and last day of the week


Ex: input : '04/12/2006'

Required ouput :

start_date End_date
04/09/200604/15/2006

Note :1. start_date should be sunday
2. end_date should be saturday




Task 2 -- Find the product sales week wise


Find the product sales week wise

Output Required:

gasstationID productClass week1 week2 week3 week4
-------------------- ------------ ----------- ----------- ----------- -----------
111 DSL 1 0 0 0
111 GAS 2 0 1 1
222 DSL 1 0 1 1
222 GAS 1 0 0 0


create table trial_sales(
gasstationIDbigint,
salesDatesmalldatetime,
gallonsbigint,
productClass varchar(4))


insert into trial_sales values(111,'11/01/2005',10000,'GAS')
insert into trial_sales values(111,'11/02/2005',1000,'GAS')
insert into trial_sales values(111,'11/02/2005',20000,'DSL')
insert into trial_sales values(222,'11/01/2005',10000,'GAS')
insert into trial_sales values(222,'11/02/2005',10000,'DSL')
insert into trial_sales values(111,'11/15/2005',1000,'GAS')
insert into trial_sales values(222,'11/15/2005',10000,'DSL')
insert into trial_sales values(111,'11/25/2005',1000,'GAS')
insert into trial_sales values(222,'11/25/2005',10000,'DSL')





Task 3 Display unique values


Display unique values in

create table t (colA varchar(25))

insert into t values('apple')
insert into t values('bat')
insert into t values('car')

ouput required:

a
b
c
e
l
p
r
t



Task : 4

I have a table in the database I am working with with the following columns:
(I have simplified this down for the sake of clarity)
int p1
int p2
int p3
int s1
date d1
string s1

There is no primary key and the table more resembles a log than anything.
e.g.

p1 p2 p3 s1 d1 s1
1 12 14 100 23May comment 2
1 12 14 800 22May comment 1
1 12 14 300 24May comment 3
1 12 15 100 22May comment 2
1 12 15 800 21May comment 1
2 12 15 100 23May comment 1

What I want to do is exttract the rows from the table where the combination
of p1 p2 and p3 is distinct/unique and the date is the most recent one for
all combinations of p1, p2, p3. So from the table above I would end up with
the resultset:

p1 p2 p3 s1 d1 s1
1 12 14 300 24May comment 3
1 12 15 100 22May comment 2
2 12 15 100 23May comment 1





Task 5


say i have the following data...
uId(int PK), productcode(int), quantity(int)
1,12,5
2,12,3
3,12,5
4,11,9


....and i have an order for productcode 12 with quantity of 6 products.
i need to select only enough rows to reach a quantity of 6.
in this case, i would want the first two rows which would give me a sum of
8.
how can i do this without looping through each record, getting the quantity
and exiting the loop when i have a sum >= 6?



Task 6

I have two tables as below, TABLE1 and TABLE2.


TABLE 1: Base

IDPNamePPrice
-------------------------------------
1A30
2B20

TABLE 2: History

IDLdateAmount
-------------------------------------
12005/8/750


The ID of TALBE1 is the primary key and the ID of TABLE2 is the foreign key.
What's the right T-SQL JOIN statement when I pass the date of 2005/8/7,
it will return the result as below:


LdatePNameAmount
------------------------------------
2005/8/7A50
2005/8/7Bnull


and when I pass the date of 2005/8/8, it will return the result as below:

LdatePNameAmount
------------------------------------
2005/8/8Anull
2005/8/8Bnull



Task : 7

Reverse the Name

create table sample_judge(
judge_namevarchar(50))
go

insert into sample_judge values ('J Smith')
insert into sample_judge values ('M Samuel')
insert into sample_judge values ('S Shan')
insert into sample_judge values ('K Anand')
insert into sample_judge values ('K K K K Anand')
insert into sample_judge values ('K R Shanth Anand')
insert into sample_judge values ('K R Shanth Anand Kumara Velu')

go

Expected Output :

Smith J
Samuel M
Shan S
Anand K
Anand K K K K
Shanth Anand K R
Shanth Anand Kumara Velu K R


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thanks in adv
chakri