pleae see the DDL and logic it require for this query
please assist me here,
create table Student
CREATE TABLE [dbo].[StudentNew] (
[Sno] VARCHAR(3) NOT NULL,
[Sname] VARCHAR(30) NOT NULL,
[LastGameDate] Date NULL,
[DateofBirth] Date NULL,
[Points] money NULL,
CONSTRAINT [PK_StudentNew] PRIMARY KEY CLUSTERED ([Sno],[Sname]) )
CREATE TABLE [dbo].[StudentOffers] (
[Sno] VARCHAR(3) NOT NULL,
[Sname] VARCHAR(30) NULL,
[DoB] Date NULL,
[City] VARCHAR(30) NULL,
[Fee] money NULL,
[State] VARCHAR(20) NULL,
)
Insert into StudentOffers values (1,'AAA','1/1/1987','NewYork',0,'NY')
Insert into StudentOffers values (2,'BBB','2/22/1986','Norwlak',5600,'CT')
Insert into StudentOffers values (3,'CCC','3/13/1989','Bridgeport',4400,'CT')
Insert into StudentOffers values (4,'DDD','4/24/1984','Stamford',6000,'CT')
Insert into StudentOffers values (5,'EEE','5/15/1987','Norwich',4000,'CT')
Insert into StudentOffers values (6,'FFF','6/5/1980','Secausus',3500,'NJ')
Insert into StudentOffers values (7,'GGG','7/22/1980','Newark',23000,'NJ')
Insert into StudentOffers values (8,'HHH','6/15/1990','Secausus',NULL,'NJ')
Insert into StudentOffers values (9,'III','7/17/1900','Newark',NULL,'NJ')
---Target Table All changes our Query Insert/Update will affect this table only
Insert into StudentNEW values (1,'AAA',null,'1/1/1987',null)
Insert into StudentNew values (2,'BBB',null,'2/22/1986',null)
Insert into StudentNew values (3,'CCC','4/19/2013','3/13/1989',100)
Insert into StudentNew values (4,'DDD','3/22/2013','4/24/1984',300)
Insert into StudentNew values (5,'EEE','2/23/2013','5/15/1987',250)
For Matched Records in StudentNew Table (based on sno,sname)
check LastGameDate column has no value
if Fee from studentOffers is > 0 then update points column with fee column, and update lastgamedate column to current week friday date
example: 1, has 0 value in fee so no action but sno=2 has value in fee so points = fee and then lastGamedate = current weekk friday
check LastGameDate column has value + 7 weeks > today then
if points column < Fee from studentOffers then update points column with fee column
example: sno with 3,4 has GameLastDate '4/19/2013', '3/22/2013' + 49 days (7 weeks) which is > today, check points < fee column so update points = fee
check LastGameDate column has value + 7 weeks < today then
No Action required.
example: sno with 5 has GameLastDate '2/23/2013' + 49 days (7 weeks) which is 2013-04-06 < today, so no action on sno=5
For NON Matched Records in StudentNew Table (based on sno,sname)
---Below Records Not exist in target Table, also null in fee Insert will happen with nulls in Lastgamedate, points columns
sno 8, 9 has no fee value (null) then insert total_summary_nfs studentnew table with null vlaues in lastdatecolumn & points
----Below Records not exist in target table,Fee > 0 so insert will happen with values
sno 6, 7 not exist in studentnew table also has fee value so insert with values LastGameDate = Current week friday
expected Results after the insert/update query runs in StudentNew Table
---Update
Insert into StudentNEW values (1,'AAA',null,'1/1/1987',null)
Insert into StudentNew values (2,'BBB','5/10/2013','2/22/1986',5600)
Insert into StudentNew values (3,'CCC','4/19/2013','3/13/1989',4400)
Insert into StudentNew values (4,'DDD','3/22/2013','4/24/1984',6000)
Insert into StudentNew values (5,'EEE','2/23/2013','5/15/1987',250)
---Insert
Insert into StudentOffers values (6,'FFF','5/10/2013','6/5/1980',3500)
Insert into StudentOffers values (7,'GGG','5/10/2013','7/22/1980',23000)
Insert into StudentOffers values (8,'HHH',null,'6/15/1990',NULL)
Insert into StudentOffers values (9,'III',null,'7/17/1900',NULL)
Thanks in advance
asittti