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Lab-05.sql
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-- question 1
select Name, Europe, [North America] as 'North America', Pacific
from
(
select Production.Product.Name, Sales.SalesOrderDetail.OrderQty, sales.SalesTerritory.[Group]
from Production.Product
inner join Sales.SalesOrderDetail
on (Production.Product.ProductID = Sales.SalesOrderDetail.ProductID)
inner join sales.SalesOrderHeader
on (sales.SalesOrderHeader.SalesOrderID = Sales.SalesOrderDetail.SalesOrderID)
inner join sales.SalesTerritory
on (sales.SalesTerritory.TerritoryID = sales.SalesOrderHeader.TerritoryID)
)as SourceTable
PIVOT
(
COUNT(OrderQty)
for [Group] IN (Europe, [North America], Pacific)
)as PVT
-- question 2
select PersonType, M, F
from
(
select Person.BusinessEntityID, PersonType, Gender
from Person.Person
join HumanResources.Employee
on (Person.BusinessEntityID = Employee.BusinessEntityID)
)as SourceTable
PIVOT
(
COUNT (BusinessEntityID)
for Gender IN (M, F)
)as PVT
-- question 3
select name
from Production.Product
where (LEN (name) < 15 and SUBSTRING(name, LEN (name) - 2, 1) = 'e')
order by name
-- question 4
create function F_date (@date_in char(10))
returns varchar(100)
BEGIN
declare @my_output VARCHAR(100);
declare @year INT;
declare @month INT;
declare @day INT;
if (SUBSTRING(@date_in,5,1) != '/') or (SUBSTRING(@date_in,8,1) != '/')
set @my_output = 'Wrong format input';
else if (len(@date_in) < 10)
set @my_output = 'Wrong format input';
else
begin
set @year = SUBSTRING(@date_in,1,4);
set @month = SUBSTRING(@date_in,6,2);
set @day = SUBSTRING(@date_in,9,2);
if (@day > 31)
set @my_output = 'Wrong format input';
else if (@month = 01)
set @my_output = 'January' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 02)
set @my_output = 'February' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 03)
set @my_output = 'March' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 04)
set @my_output = 'April' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 05)
set @my_output = 'May' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 06)
set @my_output = 'June' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 07)
set @my_output = 'July' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 08)
set @my_output = 'August' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 09)
set @my_output = 'September' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 10)
set @my_output = 'October' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 11)
set @my_output = 'November' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else if (@month = 12)
set @my_output = 'December' + ' ' + CONVERT(varchar(40),@day) + ' ' + CONVERT(varchar(40),@year);
else
set @my_output = 'Wrong format input';
end
RETURN @my_output
end
select dbo.F_date('2019/09/17') as date
select dbo.F_date('201/09/17') as date
select dbo.F_date('2019/9/17') as date
select dbo.F_date('2019/0917') as date
select dbo.F_date('20190917') as date
select dbo.F_date('2019/09/32') as date
select dbo.F_date('2019/13/17') as date
select dbo.F_date('14/12/2019') as date
drop FUNCTION F_date
-- question 5
create FUNCTION my_FUNC (@year int,
@month int,
@name varchar(50)
)
returns table
as
return
select DISTINCT sales.SalesTerritory.name as TerritoryName
from Production.Product
inner join Sales.SalesOrderDetail
on (Production.Product.ProductID = Sales.SalesOrderDetail.ProductID)
inner join sales.SalesOrderHeader
on (sales.SalesOrderHeader.SalesOrderID = Sales.SalesOrderDetail.SalesOrderID)
inner join sales.SalesTerritory
on (sales.SalesTerritory.TerritoryID = sales.SalesOrderHeader.TerritoryID)
where (Production.Product.Name = @name)
and
(year(Sales.SalesOrderHeader.OrderDate) = @year)
and
(month(Sales.SalesOrderHeader.OrderDate) = @month)
select *
from dbo.my_FUNC(2011, 05,'AWC Logo Cap')
order by TerritoryName
select *
from dbo.my_FUNC(2011, 05,'Mountain-100 Black, 42')
order by TerritoryName
drop function my_FUNC