Related
I have a data table that contains a name and a social security number. I want to insert the name into a table with an identity field, then insert the ssn with that new identity field value into another table.
Below are the tables:
CREATE TABLE [data_table]
(
[name] [varchar](50) NOT NULL,
[ssn] [varchar](9) NOT NULL,
)
CREATE TABLE [entity_key_table]
(
[entity_key] [int] IDENTITY(1000000,1) NOT NULL,
[name] [varchar](50) NOT NULL,
)
CREATE TABLE [entity_identifier_table]
(
[entity_identifier_key] [int] IDENTITY(1000000,1) NOT NULL,
[entity_key] [int] NOT NULL,
[ssn] [int] NOT NULL,
)
This query works but doesn't link entity_key in [entity_key_table] TO ssn in [entity_identifier_table]:
INSERT INTO entity_key_table (name)
OUTPUT [INSERTED].[entity_key]
INTO [entity_identifier_table] (entity_key)
SELECT [name]
FROM [data_table]
This is what I want to do, but it doesn't work.
INSERT INTO entity (name)
OUTPUT [INSERTED].[entity_key], [data_table].[ssn]
INTO [entity_identifier] (entity_key,ssn)
SELECT [name]
FROM [data_table]
Rewriting my answer based on your requirements and the articles you linked. I think you can get that behavior doing something like this. I admit, I have never seen a merge on something like 1 != 1 like the article suggests, so I would be very cautious with this and test the bajeezes out out of it.
FWIW, it looks like during an INSERT, you can't access data that's not in the inserted virtual table, but updates (and apparently MERGE statements) can.
if object_id('tempdb.dbo.#data_table') is not null drop table #data_table
create table #data_table
(
[name] [varchar](50) NOT NULL,
[ssn] [varchar](9) NOT NULL,
)
if object_id('tempdb.dbo.#entity_key_table') is not null drop table #entity_key_table
create table #entity_key_table
(
[entity_key] [int] IDENTITY(1000000,1) NOT NULL,
name varchar(50)
)
if object_id('tempdb.dbo.#entity_identifier_table') is not null drop table #entity_identifier_table
create table #entity_identifier_table
(
[entity_identifier_key] [int] IDENTITY(2000000,1) NOT NULL,
[entity_key] [int] NOT NULL,
[ssn] varchar(9) NOT NULL,
)
insert into #Data_table (Name, SSN)
select 'John', '123456789' union all
select 'John', '001100110' union all
select 'Jill', '987654321'
merge into #entity_key_table t
using #data_table s
on 1 != 1
when not matched then insert
(
name
)
values
(
s.name
)
output inserted.entity_key, s.ssn
into #entity_identifier_table
(
entity_key,
ssn
);
select top 1000 *
from #data_table
select top 1000 *
from #entity_key_table
select top 1000 *
from #entity_identifier_table
The problem with your code is that you output data only from inserted or deleted.
Assuming your name column only relates to one SSN, the following would work:
DECLARE #output TABLE (entity_key INT,ssn VARCHAR (11))
INSERT INTO entity (entity_key, name)
OUTPUT [INSERTED].[entity_key], [inserted].[name]
INTO #output
SELECT D.Entity_key, d.name
FROM datatable
INSERT INTO entity_identifier (entity_key, ssn)
Select o.entity_key, d.snn
from #output o
join datatable d on o.name = d.name
However, the problem of multiple duplicated names having different Social Security Numbers is extremely high. In this case, your current structure simply does not work because there is no way to know which identity belongs to which name record. (The Merge solution in another post may also have this problem, before you put that to production be sure to test the scenario of duplicated names. The chances of duplicated names in a set of records is extremely high in any reasonable large data set of names and this should be one of your unit test for any potential solution.)
Here is a potential workaround. First, insert the SSN as the name in the first insert, then return output as shown but join on the #output Name column to the SSN column. After doing the other insert, then update the name in the orginal table to the correct name again joining on the SSN data.
DECLARE #output TABLE (entity_key INT,ssn VARCHAR (11))
INSERT INTO entity (entity_key, name)
OUTPUT [INSERTED].[entity_key], [inserted].[ssn]
INTO #output
SELECT D.Entity_key, d.name
FROM datatable
INSERT INTO entity_identifier (entity_key, ssn)
Select o.entity_key, d.output
from #output o
update e
set name = d.name
FROM entity e
join #output o on e.entity_key = o.entity_key
join datatable d on o.name = d.ssn
I have a SQL Server database and in a table there's a lookup column which is a "nullable FK" linked to a master table.
There's a data import process in which we fetch data from table01_staging into table01. This is the UPDATE statement which is failing (if CarrierID is null) -
DECLARE #code as nvarchar(10); SET #code = 'xyz';
UPDATE table01
SET CarrierID = t2.CarrierID
FROM table01 AS t1
INNER JOIN table01_staging AS t2 ON t1.Code = #code;
WHERE t1.Code = #code;
It goes fine if the CarrierID is not null. In fact I can successfully execute:
UPDATE table01
SET CarrierID = null
WHERE t1.Code = 'xyz';
So setting null is not the problem but it doesn't work when its updated from the staging table which has a null value. How can I make it right?
Error : The UPDATE statement conflicted with the FOREIGN KEY constraint FK_table01_MasterCarrier. The conflict occurred in database table01, table dbo.MasterCarrier, column ID.
> EDIT 02: DONE!. Updated the first SQL to show my variable usage - which I believe was the culprit. Correcting the JOIN operation as follows with a COLLATion conversion error fix makes it work -
DECLARE #code as nvarchar(10); SET #code = 'xyz';
UPDATE table01
SET CarrierID = t2.CarrierID
FROM table01 AS t1
INNER JOIN table01_staging AS t2 ON t1.Code = t2.code COLLATE SQL_Latin1_General_CP1_CI_AS
WHERE t1.Code = #code;
Thank you all, esp. Zhang. I deserve a -1 for not being able to understand the JOIN clause properly :-)
Does table01_staging have the same Foreign Key Constraint on CarrierID?
If not, check whether there are some CarrierID not existing in MasterCarrier table.
select * from table01_staging t
where not exists (select 1 from MasterCarrier m where m.ID = t.CarrierID)
!!UPDATE!!
I created the sample table and data. It worked without any issue.
CREATE TABLE [dbo].MasterCarrier(
[id] [int] IDENTITY NOT NULL,
[NAME] [varchar](10) NULL,
CONSTRAINT [PK_mastertable] PRIMARY KEY CLUSTERED
(
[id] ASC
)
)
GO
CREATE TABLE [dbo].[table01](
[id] [int] NOT NULL,
[CarrierID] [int] NULL,
[Code] [varchar](10) NULL
)
GO
ALTER TABLE [dbo].table01 WITH CHECK ADD CONSTRAINT [FK_table01_MasterCarrier] FOREIGN KEY([CarrierID])
REFERENCES [dbo].[MasterCarrier] ([id])
GO
ALTER TABLE [dbo].table01 CHECK CONSTRAINT [FK_table01_MasterCarrier]
GO
CREATE TABLE [dbo].[table01_staging](
[id] [int] NOT NULL,
[CarrierID] [int] NULL,
[Code] [varchar](10) NULL
)
GO
--Insert sample data
INSERT INTO MasterCarrier (NAME) VALUES ('carrier');
INSERT INTO table01 (id, CarrierID, Code) VALUES (1, 1, 'abc'), (2, NULL, 'abc'),(3, 1, 'ddd');
INSERT INTO table01_staging (id, CarrierID, Code) VALUES (1, 1, 'abc'), (2, NULL, 'abc'),(3, 1, 'ddd');
UPDATE table01
SET CarrierID=t2.CarrierID
FROM table01 AS t1
INNER JOIN table01_staging AS t2 ON t1.ID = t2.ID
WHERE t1.Code='abc'
It gets (2 rows affected) message.
I have a little strange issue with my SQL script and I was hoping someone could help me out with it.
I have a Database being created by using
IF EXISTS (SELECT name
FROM sysdatabases
WHERE name = 'travel')
DROP DATABASE travel
GO
CREATE DATABASE travel
GO
USE travel
GO
I then create 3 tables as shown below
CREATE TABLE customer
(
customerID INT,
lastname VARCHAR(70) NOT NULL,
firstname VARCHAR(70) NOT NULL,
phone VARCHAR(10) CONSTRAINT phoneCheck CHECK ((phone LIKE '[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]')),
category VARCHAR(7) NOT NULL CONSTRAINT categoryDefault DEFAULT 'A',
CONSTRAINT categoryCheck CHECK (category IN ('A', 'B', 'C')),
CONSTRAINT customerPK
PRIMARY KEY (customerID)
)
CREATE TABLE package /*Still need to do the Zero Padding*/
(
packageCode VARCHAR(6),
destination VARCHAR(70),
CONSTRAINT packageCodeCheck CHECK (packageCode LIKE ('YFK%')),
price MONEY NOT NULL CONSTRAINT priceCheck CHECK ((price BETWEEN 1000 AND 10000)),
passportRequired VARCHAR(7) NOT NULL CONSTRAINT passportRequiredDefault DEFAULT 'Y',
CONSTRAINT passportCheck CHECK (passportRequired IN ('Y', 'N')),
CONSTRAINT packagePK
PRIMARY KEY (packageCode)
)
CREATE TABLE booking /*Still need to do the Customer and Package delete*/
(
customerID VARCHAR(6),
bookingDate VARCHAR(70) NOT NULL DEFAULT GETDATE(),
amountPaid MONEY CONSTRAINT amountPaidDefault DEFAULT 0.00,
CONSTRAINT bookingPK
PRIMARY KEY (customerID)
)
Now heres the issue, I create a trigger as shown below
GO
CREATE TRIGGER customerDelete ON customer AFTER DELETE
AS
DELETE booking
FROM customer
WHERE customer.customerID = booking.customerID
GO
Which to my understanding it will delete all records in booking... that have the matching customerID WHEN a record is deleted from the customer Table. (I am new to triggers)
I INSERT Sample Data as shown below
INSERT INTO customer
(customerID, lastname, firstname, phone, category)
VALUES
(1, 'Picard', 'Corey', 1234567890, 'A'),
(2, 'Bond', 'Devon', 9876543210, 'B'),
(3, 'Douglas', 'Bryan', 6549871230, 'C')
INSERT INTO package
(packageCode, destination, price, passportRequired)
VALUES
('YFK001', 'Toronto', 1000.57, 'N'),
('YFK002', 'Orlando', 3000.98, 'Y')
INSERT INTO booking
(customerID, bookingDate, amountPaid)
VALUES
(1, GETDATE(), 1548),
(2, GETDATE(), 1586),
(3, GETDATE(), 1350),
(4, GETDATE(), 1650)
And Finally I delete the Customer from the TABLE customer with the customerID of 1 by using
DELETE customer
WHERE customerID = 1
However, when I attempt to see the results by using
SELECT * FROM customer
--WHERE customerID = 1 OR customerID = 2 OR customerID = 3
SELECT * FROM package
--WHERE packageCode = 'YFK001' OR packageCode = 'YFK002'
SELECT * FROM booking
--WHERE customerID = 1 OR customerID = 2 OR customerID = 3 OR customerID = 4
It displays bookings with customerID 1 and 4.
Can you let me know what I'm doing wrong?
The trigger is essentially used for the purpose of deleting the bookings with the same customerID of the customer we delete from the customer TABLE
All help is greatly appreciated.
Thanks,
Bryan
Change your delete to this:
DELETE B
FROM booking B
INNER JOIN DELETED D
ON B.customerID = D.customerID;
My Answer is not trigger, [ If you specially want to use Trigger then You can use Lamak's & Pradeep's Answer]
Here best way you can do is use Cacade on foreign Key in your case
Here is your Query I just updated cascade in it
CREATE TABLE customer
(
customerID INT,
lastname VARCHAR(70) NOT NULL,
firstname VARCHAR(70) NOT NULL,
phone VARCHAR(10) CONSTRAINT phoneCheck CHECK ((phone LIKE '[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]')),
category VARCHAR(7) NOT NULL CONSTRAINT categoryDefault DEFAULT 'A',
CONSTRAINT categoryCheck CHECK (category IN ('A', 'B', 'C')),
CONSTRAINT customerPK
PRIMARY KEY (customerID)
)
CREATE TABLE package /*Still need to do the Zero Padding*/
(
packageCode VARCHAR(6),
destination VARCHAR(70),
CONSTRAINT packageCodeCheck CHECK (packageCode LIKE ('YFK%')),
price MONEY NOT NULL CONSTRAINT priceCheck CHECK ((price BETWEEN 1000 AND 10000)),
passportRequired VARCHAR(7) NOT NULL CONSTRAINT passportRequiredDefault DEFAULT 'Y',
CONSTRAINT passportCheck CHECK (passportRequired IN ('Y', 'N')),
CONSTRAINT packagePK
PRIMARY KEY (packageCode)
ON DELETE CASCADE
ON UPDATE CASCADE
)
CREATE TABLE booking /*Still need to do the Customer and Package delete*/
(
customerID VARCHAR(6),
bookingDate VARCHAR(70) NOT NULL DEFAULT GETDATE(),
amountPaid MONEY CONSTRAINT amountPaidDefault DEFAULT 0.00,
CONSTRAINT bookingPK
PRIMARY KEY (customerID)
ON DELETE CASCADE
ON UPDATE CASCADE
)
This way when you are deleting or update [keyvalue] any entry of Table holding primary key will update its related foreign childs
I am having a little bit of trouble with making a trigger in my SQL. I have two tables:
This one
Create table [user]
(
[id_user] Integer Identity(1,1) NOT NULL,
[id_event] Integer NULL,
[name] Nvarchar(15) NOT NULL,
[lastname] Nvarchar(25) NOT NULL,
[email] Nvarchar(50) NOT NULL, UNIQUE ([email]),
[phone] Integer NULL, UNIQUE ([phone]),
[pass] Nvarchar(50) NOT NULL,
[nick] Nvarchar(20) NOT NULL, UNIQUE ([nick]),
Primary Key ([id_user])
)
go
and this one
Create table [event]
(
[id_event] Integer Identity(1,1) NOT NULL,
[id_creator] Integer NOT NULL,
[name] Nvarchar(50) NOT NULL,
[date] Datetime NOT NULL, UNIQUE ([date]),
[city] Nvarchar(50) NOT NULL,
[street] Nvarchar(50) NOT NULL,
[zip] Integer NOT NULL,
[building_number] Integer NOT NULL,
[n_signed_people] Integer Default 0 NOT NULL Constraint [n_signed_people] Check (n_signed_people <= 20),
Primary Key ([id_akce])
)
Now I need a trigger for when I insert a new user with and id_event, or update existing one with one, to take the id_event I inserted, look in the table of events and increment the n_signed_people in a line with a coresponding id_event, until it is 20. When it is 20, it should say that the event is full. I made something like this, it is working when I add a new user with id, but now I need it to stop at 20 and say its full and also I am not sure if it will work, when I'll try to update existing user, by adding an id_event (I assume it was NULL before update).
CREATE TRIGGER TR_userSigning
ON user
AFTER INSERT
AS
BEGIN
DECLARE #idevent int;
IF (SELECT id_event FROM Inserted) IS NOT NULL --if the id_event is not empty
BEGIN
SELECT #idevent=id_event FROM Inserted; --the inserted id_event will be save in a local variable
UPDATE event SET n_signed_people = n_signed_people+1 WHERE #idevent = id_event;
END
END
go
Good evening,
I did notice some issues with your schema. I want to list the fixes I made in order.
1 - Do not use reserved words. Both user and event are reserved.
2 - Name your constraints. You will be glad they are not some random word when you want to drop one.
3 - I added a foreign key to make sure there is integrity in the relationship.
All this work was done in tempdb. Now, lets get to the fun stuff, the trigger.
-- Just playing around
use tempdb;
go
-- attendee table
if object_id('attendees') > 0
drop table attendees
go
create table attendees
(
id int identity (1,1) NOT NULL constraint pk_attendees primary key,
firstname nvarchar(15) NOT NULL,
lastname nvarchar(25) NOT NULL,
email nvarchar(50) NOT NULL constraint uc_email unique,
phone int NULL constraint uc_phone unique,
pass nvarchar(50) NOT NULL,
nick nvarchar(20) NOT NULL constraint uc_nick unique,
event_id int NOT NULL
)
go
-- events table
if object_id('events') > 0
drop table events
go
create table events
(
id int identity (1,1) NOT NULL constraint pk_events primary key,
creator int NOT NULL,
name nvarchar(50) NOT NULL,
planed_date datetime NOT NULL constraint uc_planed_date unique,
street nvarchar(50) NOT NULL,
city nvarchar(50) NOT NULL,
zip nvarchar(9) NOT NULL,
building_num int NOT NULL,
registered int
constraint df_registered default (0) NOT NULL
constraint chk_registered check (registered <= 20),
);
go
-- add some data
insert into events (creator, name, planed_date, street, city, zip, building_num)
values (1, 'new years eve', '20131231 20:00:00', 'Promenade Street', 'Providence', '02908', 99);
-- make sure their is integrity
alter table attendees add constraint [fk_event_id]
foreign key (event_id) references events (id);
I usually add all three options (insert, update, & delete). You coded for insert in the example above. But you did not code for delete.
Also, both the inserted and deleted tables can contain multiple rows. For instance, if two attendees decide to drop out, you want to minus 2 from the table.
-- create the new trigger.
CREATE TRIGGER [dbo].[trg_attendees_cnt] on [dbo].[attendees]
FOR INSERT, UPDATE, DELETE
AS
BEGIN
-- declare local variable
DECLARE #MYMSG VARCHAR(250);
-- nothing to do?
IF (##rowcount = 0) RETURN;
-- do not count rows
SET NOCOUNT ON;
-- deleted data
IF NOT EXISTS (SELECT * FROM inserted)
BEGIN
UPDATE e
SET e.registered = e.registered - c.total
FROM
[dbo].[events] e
INNER JOIN
(SELECT [event_id], count(*) as total
FROM deleted group by [event_id]) c
ON e.id = c.event_id;
RETURN;
END
-- inserted data
ELSE IF NOT EXISTS (SELECT * FROM deleted)
BEGIN
UPDATE e
SET e.registered = e.registered + c.total
FROM
[dbo].[events] e
INNER JOIN
(SELECT [event_id], count(*) as total
FROM inserted group by [event_id]) c
ON e.id = c.event_id;
RETURN;
END;
-- updated data (no counting involved)
END
GO
Like any good programmer, I need to test my work to make sure it is sound.
Lets add 21 new attendees. The check constraint should fire. This only works since the error generated by the UPDATE rollback the insert.
-- Add 21 attendees
declare #var_cnt int = 0;
declare #var_num char(2);
while (#var_cnt < 22)
begin
set #var_num = str(#var_cnt, 2, 0);
insert into attendees (firstname, lastname, email, phone, pass, nick, event_id)
values ('first-' + #var_num,
'last-' + #var_num,
'email-'+ #var_num,
5554400 + (#var_cnt),
'pass-' + #var_num,
'nick-' + #var_num, 1);
set #var_cnt = #var_cnt + 1
end
go
Last but not least, we need to test a DELETE action.
-- Delete the last row
delete from [dbo].[attendees] where id = 20;
go
I'm pretty new to databases and I have this assignment that I've completed where I had to look at a merged Entity Relationship Diagram and then create Drop Tables, Tables (with constraints and identity's), Alterations and Indexes. I'm pretty sure I've coded everything correctly but the only area I'm a little unsure about, it's how to test that the database will actually function when executing it. My instructor gave me a TestData.sql file that I just have to refer to the database and then execute and it should insert all the data into the tables and drop everything correctly. I have it all hooked up properly on SQL Server Management Studio but I forget what steps I should be taking in order to test the proper execution of the tables. I'll post some of my code so you guys can take a look. Any information regarding this issue would be greatly appreciated!
Also, when it says in the Test Data SQL code "IMPORTANT! If you need to run this script more than once you must drop and recreate your tables first to reset the identity properties." --Does this mean that if I run into any errors while trying to execute the test data, I will have to execute the DROP TABLES first and then maybe copy and paste all the TABLES back into the Database file? I don't actually have to manually type all the TABLES again, just need to re-enter them as "new" so the system will kind of reset it's identity properties?
If you guys need me to post more of the code for clarification, just let me know. Thanks for taking the time to read this :)
Update: I'm getting 2 error messages when trying to execute the TestData script: "Invalid object name 'SaleDetail'." and "Invalid object name 'Author'." I've also provided the rest of the code from my Database script file for you to take a look at. I'm almost certain everything is correct.
Database Tables Code (this is the complete code script)
USE Lab2A_BooksGalore
GO
/*------ Drop Table Statements ------*/
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'SaleDetail')
DROP TABLE SaleDetail
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'AuthorTitle')
DROP TABLE AuthorTitle
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Title')
DROP TABLE Title
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Publisher')
DROP TABLE Publisher
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Category')
DROP TABLE Category
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Author')
DROP TABLE Author
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Sale')
DROP TABLE Sale
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Employee')
DROP TABLE Employee
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Customer')
DROP TABLE Customer
/*------- Create Table Statements -------*/
CREATE TABLE Customer
(
CustomerNumber int
CONSTRAINT PK_Customer_CustomerNumber
PRIMARY KEY
IDENTITY (1, 1) NOT NULL,
LastName varchar(30) NOT NULL,
FirstName varchar(30) NOT NULL,
[Address] varchar(40) NULL,
City varchar(30) NULL,
Province char(2)
CONSTRAINT DF_Customer_Province
DEFAULT ('AB') NULL,
PostalCode char(6)
CONSTRAINT CK_Customer_PostalCode
CHECK (PostalCode LIKE '[A-Z][0-9][A-Z][0-9][A-Z][0-9]')
NULL,
HomePhone char(10)
)
CREATE TABLE Employee
(
EmployeeNumber int
CONSTRAINT PK_Employee_EmployeeNumber
PRIMARY KEY
IDENTITY (300, 1) NOT NULL,
[SIN] char(9) NOT NULL,
LastName varchar(30) NOT NULL,
FirstName varchar(30) NOT NULL,
[Address] varchar(40) NULL,
City varchar(20) NULL,
Province char(2)
CONSTRAINT DF_Employee_Province
DEFAULT ('AB') NULL,
PostalCode char(6)
CONSTRAINT CK_Employee_PostalCode
CHECK (PostalCode LIKE '[A-Z][0-9][A-Z][0-9][A-Z][0-9]')
NULL,
HomePhone char(10) NULL,
WorkPhone char(10) NULL,
Email varchar(40) NULL,
)
CREATE TABLE Sale
(
SaleNumber int
CONSTRAINT PK_Sale_SaleNumber
PRIMARY KEY
IDENTITY (3000, 1) NOT NULL,
SaleDate datetime NOT NULL,
CustomerNumber int
CONSTRAINT FK_Sale_CustomerNumber_Customer_CustomerNumber
FOREIGN KEY REFERENCES Customer(CustomerNumber)
NOT NULL,
EmployeeNumber int
CONSTRAINT FK_Sale_EmployeeNumber_Employee_EmployeeNumber
FOREIGN KEY REFERENCES Employee(EmployeeNumber)
NOT NULL,
Subtotal money
CONSTRAINT CK_Sale_Subtotal
CHECK (Subtotal <= Total) NOT NULL,
GST money NOT NULL,
Total money
CONSTRAINT CK_Sale_Total
CHECK (Total >= Subtotal) NOT NULL,
)
CREATE TABLE Author
(
AuthorCode int
CONSTRAINT PK_Author_AuthorCode
PRIMARY KEY
IDENTITY (100, 1) NOT NULL,
LastName varchar(30) NOT NULL,
FirstName varchar(30) NOT NULL,
)
CREATE TABLE Category
(
CategoryCode int
CONSTRAINT PK_Category_CategoryCode
PRIMARY KEY
IDENTITY (1, 1) NOT NULL,
[Description] varchar(40) NOT NULL,
)
CREATE TABLE Publisher
(
PublisherCode int
CONSTRAINT PK_Publisher_PublisherCode
PRIMARY KEY
IDENTITY (200, 1) NOT NULL,
[Name] varchar(40) NOT NULL,
)
CREATE TABLE Title
(
ISBN char(10)
CONSTRAINT PK_Title_ISBN
PRIMARY KEY NOT NULL,
Title varchar(40) NOT NULL,
SuggestedPrice smallmoney
CONSTRAINT DF_Title_SuggestedPrice
DEFAULT (0) NOT NULL,
NumberInStock smallint
CONSTRAINT CK_Title_NumberInStock
CHECK (NumberInStock >= 0)
CONSTRAINT DF_Title_NumberInStock
DEFAULT (0) NOT NULL,
PublisherCode int
CONSTRAINT FK_Title_PublisherCode_Publisher_PublisherCode
FOREIGN KEY REFERENCES Publisher(PublisherCode)
NOT NULL,
CategoryCode int
CONSTRAINT FK_Title_CategoryCode_Category_CategoryCode
FOREIGN KEY REFERENCES Category(CategoryCode)
NOT NULL,
)
CREATE TABLE AuthorTitle
(
ISBN char(10)
CONSTRAINT FK_AuthorTitle_ISBN_Title_ISBN
FOREIGN KEY REFERENCES Title(ISBN)
NOT NULL,
AuthorCode int
CONSTRAINT FK_AuthorTitle_AuthorCode_Author_AuthorCode
FOREIGN KEY REFERENCES Author(AuthorCode)
NOT NULL,
)
CREATE TABLE SaleDetail
(
SaleNumber int
CONSTRAINT FK_SaleDetail_SaleNumber_Sale_SaleNumber
FOREIGN KEY REFERENCES Sale(SaleNumber)
NOT NULL,
ISBN char(10)
CONSTRAINT FK_SaleDetail_ISBN_Title_ISBN
FOREIGN KEY REFERENCES Title(ISBN)
NOT NULL,
SellingPrice money NOT NULL,
Quantity int NOT NULL,
Amount money NOT NULL,
)
/*----------------- Alter Table Statements --------------------*/
---1) Add a char(10) attribute named WorkPhone to the Customer Table
ALTER TABLE Customer
ADD WorkPhone char(10) NULL
GO
---2) Add a varchar(30) attribute named Email to the Customer Table
ALTER TABLE Customer
ADD Email varchar(30) NULL
GO
---3) Add a constraint to make sure the correct format is followed for the Email attribute
ALTER TABLE Customer
ADD CONSTRAINT CK_Customer_Email
CHECK (Email LIKE '[a-z, 0-9][a-z, 0-9][a-z, 0-9]%#[a-z, 0-9][a-z, 0-9][a-z, 0-9]%.[a-z, 0-9][a-z, 0-9]%')
--- Match For: b 8 l # g v t . c a
GO
---4) Add a char(1) attribute named Active that's required for the Employee Table
ALTER TABLE Employee
ADD Active char(1) NOT NULL
GO
---5) Add a constraint to make sure the default character is used for the Active attribute
ALTER TABLE Employee
ADD CONSTRAINT DF_Employee_Active
DEFAULT ('y')
GO
/*------------------ Foreign Key Index Statements -----------------*/
CREATE NONCLUSTERED INDEX IX_Sale_CustomerNumber
ON Sale (CustomerNumber)
CREATE NONCLUSTERED INDEX IX_Sale_EmployeeNumber
ON Sale (EmployeeNumber)
CREATE NONCLUSTERED INDEX IX_Title_PublisherCode
ON Title (PublisherCode)
CREATE NONCLUSTERED INDEX IX_Title_CategoryCody
ON Title (CategoryCode)
CREATE NONCLUSTERED INDEX IX_AuthorTitle_ISBN
ON AuthorTitle (ISBN)
CREATE NONCLUSTERED INDEX IX_AuthorTitle_AuthorCode
ON AuthorTitle (AuthorCode)
CREATE NONCLUSTERED INDEX IX_SaleDetail_SaleNumber
ON SaleDetail (SaleNumber)
CREATE NONCLUSTERED INDEX IX_SaleDetail_ISBN
ON SaleDetail (ISBN)
GO
Test Data Code(this is only a snippet being this script is 100% accurate - provided by instructor)
USE Lab2A_BooksGalore
GO
--Lab 2 insert script
--IMPORTANT! If you need to run this script more than once you must drop and recreate your tables first to reset the identity properties.
--Delete existing data in the tables, if there is any
Delete From SaleDetail
Delete From Sale
Delete From AuthorTitle
Delete From Title
Delete From Employee
Delete From Customer
Delete From Category
Delete From Publisher
Delete From Author
Go
Insert into Author
(LastName, FirstName)
Values
('Smith', 'Sammy'),
('Greens', 'George'),
('Jones', 'Johnny'),
('Davidson', 'David'),
('Robertson', 'Rob'),
('Abbots', 'Abe'),
('Bakers', 'Bob'),
('Caters', 'Clem'),
('Semenko', 'Dave'),
('Franky', 'Fran'),
('Horton', 'Harry'),
('Kelly', 'Kevin'),
('Lambert', 'Larry'),
('Johnson', 'Jon'),
('Anderson', 'Ander'),
('Peterson', 'Peter'),
('Jensen', 'Jens'),
('Issacsen', 'Issac')
Insert into Publisher
(Name)
Values
('Addison Westley'),
('SAMS'),
('Harlequin'),
('Self Publish Inc'),
('Microsoft Press'),
('Jones and Bartlett'),
('WROX'),
('West'),
('Premier')
Insert into Category
(Description)
Values
('Computers'),
('Business'),
('Human Relation'),
('Electronics'),
('Designs'),
('Miscellaneous'),
('Media Design'),
('Information Technologies')