Question
In SQL I am trying to Create an inline table function. I will give you my script first then the instructions. CREATE DATABASE Computer_Inventory_System CREATE
In SQL I am trying to Create an inline table function. I will give you my script first then the instructions.
CREATE DATABASE Computer_Inventory_System
CREATE TABLE Brands ( BrandKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, Brand varchar(40) NOT NULL, Active bit DEFAULT(1) NOT NULL )
CREATE TABLE ComputerTypes ( ComputerTypeKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, ComputerType varchar(25) NOT NULL )
CREATE TABLE ComputerStatuses ( ComputerStatusKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, ComputerStatus varchar(50) NOT NULL, ActiveStatus bit NOT NULL --an indicator of if this status means the computer is available or not )
CREATE TABLE CPUTypes ( CPUTypeKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, CPUType varchar(40) NOT NULL )
CREATE TABLE Computers ( ComputerKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, ComputerTypeKey int NOT NULL, BrandKey int NOT NULL, ComputerStatusKey int NOT NULL DEFAULT(0), PurchaseDate date NOT NULL, PurchaseCost money NOT NULL, MemoryCapacityInGB int NOT NULL, HardDriveCapacityinGB int NOT NULL, VideoCardDescription varchar (255), CPUTypeKey int NOT NULL, CPUClockRateInGHZ decimal (6, 4) )
SET IDENTITY_INSERT Computers ON INSERT Computers (ComputerKey, ComputerTypeKey, BrandKey, ComputerStatusKey, PurchaseDate, PurchaseCost, MemoryCapacityInGB, HardDriveCapacityinGB, VideoCardDescription, CPUTypeKey, CPUClockRateInGHZ) VALUES (1, 1, 1, 0, '1/1/2017', 1999.99, 32, 1024, 'Nvidia 1080', 1, 3.5), (2, 2, 4, 0, '1/1/2017', 2399.99, 16, 512, 'Nvidia GeForce GT 650M', 1, 2.5) SET IDENTITY_INSERT Computers OFF
CREATE TABLE Departments ( DepartmentKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, Department varchar(255) )
SET IDENTITY_INSERT Departments ON INSERT Departments (DepartmentKey, Department) VALUES (1, 'CEO'), (2, 'Human Resources'), (3, 'Information Technology'), (4, 'Accounting') SET IDENTITY_INSERT Departments OFF
CREATE TABLE Employees ( EmployeeKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, LastName varchar(25) NOT NULL, FirstName varchar(25) NOT NULL, Email varchar(50) NOT NULL, Hired date NOT NULL, Terminated date NULL, DepartmentKey int NOT NULL, SupervisorEmployeeKey int NOT NULL --CEO/Top of hierarchy should have their own EmployeeKey )
SET IDENTITY_INSERT Employees ON INSERT Employees (EmployeeKey, LastName, FirstName, Email, Hired, DepartmentKey, SupervisorEmployeeKey) VALUES (1, 'Ceo', 'John The', 'JCeo@thiscompany.com', '1/1/2017', 1, 1), (2, 'Brother', 'Big', 'BBrother@thiscompany.com', '1/1/2017', 2, 1), (3, 'Geek', 'Major', 'MGeek@thiscompany.com', '1/1/2017', 3, 1) SET IDENTITY_INSERT Employees OFF
CREATE TABLE EmployeeComputers ( EmployeeComputerKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, EmployeeKey int NOT NULL, ComputerKey int NOT NULL, Assigned date NOT NULL, Returned date NULL )
SET IDENTITY_INSERT ComputerStatuses ON INSERT ComputerStatuses (ComputerStatusKey, ComputerStatus, ActiveStatus) VALUES (0, 'New', 1), (1, 'Assigned', 1), (2, 'Available', 1), (3, 'Lost', 0), (4, 'In for Repairs', 0), (5, 'Retired', 1) SET IDENTITY_INSERT ComputerStatuses OFF
SET IDENTITY_INSERT CPUTypes ON INSERT CPUTypes (CPUTypeKey, CPUType) VALUES (1, 'AMD'), (2, 'Intel'), (3, 'Samsung'), (4, 'Apple'), (5, 'Qualcomm') SET IDENTITY_INSERT CPUTypes OFF
SET IDENTITY_INSERT ComputerTypes ON INSERT ComputerTypes (ComputerTypeKey, ComputerType) VALUES (1, 'Desktop'), (2, 'Laptop'), (3, 'Tablet'), (4, 'Phone') SET IDENTITY_INSERT ComputerTypes OFF
SET IDENTITY_INSERT Brands ON INSERT Brands (BrandKey, Brand) VALUES (1, 'Apple'), (2, 'Samsung'), (3, 'Sony'), (4, 'HP'), (5, 'Acer'), (6, 'NVidia') SET IDENTITY_INSERT Brands OFF
ALTER TABLE Computers ADD CONSTRAINT FK_ComputerComputerTypes FOREIGN KEY (ComputerTypeKey) REFERENCES ComputerTypes (ComputerTypeKey)
ALTER TABLE Computers ADD CONSTRAINT FK_ComputerBrands FOREIGN KEY (BrandKey) REFERENCES Brands (BrandKey)
ALTER TABLE Computers ADD CONSTRAINT FK_ComputerComputerStatus FOREIGN KEY (ComputerStatusKey) REFERENCES ComputerStatuses (ComputerStatusKey)
ALTER TABLE Computers ADD CONSTRAINT FK_ComputerCPUType FOREIGN KEY (CPUTypeKey) REFERENCES CPUTypes (CPUTypeKey)
ALTER TABLE Employees ADD CONSTRAINT FK_EmployeeDepartment FOREIGN KEY (DepartmentKey) REFERENCES Departments (DepartmentKey)
ALTER TABLE Employees ADD CONSTRAINT FK_EmployeeSupervisor FOREIGN KEY (SupervisorEmployeeKey) REFERENCES Employees (EmployeeKey)
ALTER TABLE EmployeeComputers ADD CONSTRAINT FK_EmployeeComputerEmployee FOREIGN KEY (EmployeeKey) REFERENCES Employees (EmployeeKey)
ALTER TABLE EmployeeComputers ADD CONSTRAINT FK_EmployeeComputerComputer FOREIGN KEY (ComputerKey) REFERENCES Computers (ComputerKey);
CREATE TABLE ComputerAssignments ( ComputerAssignmentKey int IDENTITY(1,1) PRIMARY KEY NOT NULL, ComputerStatusKey int NOT NULL, Added bit DEFAULT(1) NOT NULL, Assigned bit DEFAULT(1) NOT NULL, Reassigned bit DEFAULT(1) NOT NULL, Lost bit DEFAULT(1) NOT NULL, StartDate datetime NOT NULL );
SET IDENTITY_INSERT ComputerAssignments ON INSERT ComputerAssignments (ComputerAssignmentKey, ComputerStatusKey, Added, Assigned, Reassigned, Lost, StartDate) VALUES (0, 0, 1, 1, 0, 0, '1/1/2017'), (1, 1, 0, 1, 0, 0, '1/13/2017'), (2, 2, 1, 0, 0, 0, '2/1/2017'), (3, 3, 0, 0, 0, 1, '1/13/2017'), (4, 4, 0, 1, 0, 0, '5/8/2017'), (5, 5, 0, 0, 0, 0, '6/10/2017')
SET IDENTITY_INSERT ComputerAssignments OFF
ALTER TABLE ComputerAssignments ADD CONSTRAINT FK_ComputerStatusKeyAssignment FOREIGN KEY (ComputerStatusKey) REFERENCES ComputerStatuses (ComputerStatusKey)
SET IDENTITY_INSERT EmployeeComputers ON INSERT EmployeeComputers (EmployeeComputerKey, EmployeeKey, ComputerKey, Assigned, Returned) VALUES (1,1,1, '1/1/2017', NULL), (2,2,2, '2/1/2017', NULL), (3,3,2, '4/18/2017', '07/22/2017'), (4,3,1, '3/18/2017', NULL), (5,3,1, '4/10/2017', NULL), (6,2,1, '1/13/2017', '05/12/2017'), (7,1,1, '10/13/2017', NULL), (8,1,2, '10/13/2017', NULL), (9,1,1, '11/03/2016', '02/02/2017')
SET IDENTITY_INSERT EmployeeComputers OFF
-- run this part by itself CREATE VIEW ComputersForRepair AS
SELECT B.Brand, CT.ComputerType, CS.ComputerStatus, (E.LastName + ', ' + E.FirstName) AS Employee, E.Email, DATEDIFF(dd,EC.Assigned,GETDATE()) as DaysforRepair, C.MemoryCapacityInGB, C.HardDriveCapacityinGB FROM Computers C INNER JOIN Brands B ON C.BrandKey = B.BrandKey INNER JOIN ComputerTypes CT ON CT.ComputerTypeKey = C.ComputerTypeKey INNER JOIN ComputerStatuses CS ON CS.ComputerStatusKey = C.ComputerStatusKey INNER JOIN EmployeeComputers EC ON EC.ComputerKey = C.ComputerKey INNER JOIN Employees E ON E.EmployeeKey = EC.EmployeeKey WHERE CT.ComputerTypeKey = '4'
Assign one of the new machines to the CEO, then return it and assign the other machine (the CEO hated your first choice), Try to retire the second machine you assigned to the CEO (he's picky...)
I am not really sure what else you need. The CEO is "John The CEO". There are only 3 employees so far in the database. This query should help you to see what the new computers are. I guess you could add a few computers if that makes it easier.
SELECT DISTINCT
C.ComputerKey AS ComputerNumber, CS.ComputerStatus, B.Brand, C.CPUClockRateInGHZ,
CPT.CPUType, CT.ComputerType, C.MemoryCapacityInGB,
CAST(C.HardDriveCapacityinGB AS float) / CAST(1000 AS float) AS HardDriveCapacityinTB, C.VideoCardDescription,
E.LastName + ' ' + E.FirstName As EmployeeName
FROM ComputerStatuses CS
INNER JOIN ComputerAssignments CA
ON CS.ComputerStatusKey = CA.ComputerStatusKey
INNER JOIN Computers C
ON CA.ComputerStatusKey = C.ComputerStatusKey
INNER JOIN Brands B
ON C.BrandKey = B.BrandKey
INNER JOIN ComputerTypes CT
ON C.ComputerTypeKey = CT.ComputerTypeKey
INNER JOIN CPUTypes CPT
ON C.CPUTypeKey = CPT.CPUTypeKey
INNER JOIN (SELECT MAX(Assigned) AS RecentAssignedDate,
ComputerKey FROM EmployeeComputers Group By ComputerKey) AS RAC --RecentelyAssingedComputer
ON RAC.ComputerKey = C.ComputerKey
INNER JOIN EmployeeComputers EC
--here it filters the employee recently assigned to computer
ON C.ComputerKey = EC.ComputerKey AND EC.Assigned = RAC.RecentAssignedDate
INNER JOIN Employees E
ON EC.EmployeeKey = E.EmployeeKey
WHERE CS.ComputerStatusKey = 0 OR CS.ComputerStatusKey = 2
AND EC.Assigned IS NOT NULL
I think that is basically what I am asking you. Nevermind, I will figure it out myself.
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