Need help with Select statement!!

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Need help with Select statement!!

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yasser.akhan

Posted Friday, March 22, 2013 2:22 PM

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final project is due tonight at midnight and i cant finish up these select statements

a. Find all those customers who have not purchased anything from Niles Video Inc.
b. Get the total number of DVDs and video tapes sold per genre.
c. Get the average number of DVDs per purchase.

heres the er model

followed by the relational

please let me know if my er model or relational model is wrong

Post #1434511

Sean Lange

Posted Friday, March 22, 2013 2:43 PM

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Select statements usually come from tables. The pictures don't do much.

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Post #1434515

opc.three

Posted Friday, March 22, 2013 2:53 PM

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Please provide:

1. DDL in the form of CREATE TABLE statements to create your sample tables
2. DML in the form of INSERT INTO statements to populate the sample tables
3. The expected results of your SELECT statements based on that sample data
4. Most importantly: what you have tried so far.

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Post #1434518

Lynn Pettis

Posted Friday, March 22, 2013 3:42 PM

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Maybe I will look at this tomorrow.

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Post #1434537

yasser.akhan

Posted Friday, March 22, 2013 3:42 PM

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Oh srry about that, its a rather long project so i tried to spare some goring detail but here.

CREATE DATABASE Webstore
CREATE TABLE Customers
(
Customer_ID number(5) not null primary key,
Name varchar2(32) not null,
Shipping_Address varchar2(32) not null,
Email varchar2(32) not null,
Credit_Card# integer(16) not null,
);

CREATE TABLE Movies
(
Barcode number(3) not null ,
Title Varchar2(32),
Genre Varchar2(32) not null,
Year Number(4)
Media_Type Char(1) not null,
Cost money not null,
CONSTRAINT Medt primary key (barcode)
);

CREATE TABLE DVD
(
Format char(10) not null,
Cost money not null,
Quantity number(2) not null,
CONSTRAINT Medt
Foreign Key(barcode) references Movies(barcode),
);

CREATE TABLE Videos
(
Format char(10) not null,
Cost money not null,
Quantity number(2) not null,
CONSTRAINT Medt
Foreign Key(barcode) references Movies(barcode),
);

Insert Statement

INSERT INTO CustomerVALUES (11111, ‘Mike Smith’, ‘111 Ship Lane, IL 67892’, ‘mikesmith@gmail.com’, 1234 5678 9101 1121);
INSERT INTO CustomerVALUES (22222, ‘John Doe’, ‘222 Miss Lane, IL 64592’, ‘jdoe@gmail.com’, 9876 5678 9101 3456);
INSERT INTO CustomerVALUES (33333, ‘Rick Slick’, ‘333 tree Lane, IL 61253’, ‘slickrick@gmail.com’, 4589 5980 1256 1631)
INSERT INTO CustomerVALUES (44444, ‘Cheap Guy’, ‘444 cheap Lane, IL 60007’, ‘nothing@gmail.com’, 1276 5980 9876 1631)

INSERT INTO MoviesVALUES (223, ‘Dark Knight’, ‘Action’, 2013, ‘D’, $20.00);
INSERT INTO MoviesVALUES (132, ‘Titanic’, ‘Romance’, 1998, ‘V’, $8.00);
INSERT INTO MoviesVALUES (213, ‘Avengers’, ‘Action’, 2013, ‘D’, $20.00);
INSERT INTO MoviesVALUES (145, ‘Lion King’, ‘Children’, 1996, ‘V’, $6.00);

INSERT INTO SalesVALUES (10, $28.00, 11/3/2013, 157, 11111);
INSERT INTO SalesVALUES (11, $40.00, 10/28/2013, 289, 22222);
INSERT INTO SalesVALUES (12, $6.00, 11/10/2013, 865, 33333);
INSERT INTO SalesVALUES (13, $20.00, 11/11/2013, 865, 33333);

INSERT INTO DVDVALUES (‘DVDd’, $100.00, 5, 223);
INSERT INTO VideoVALUES (‘SVHS’, $32.00, 4, 132 );
INSERT INTO MoviesVALUES (‘DVDplus’, $100.00, 5, 213);
INSERT INTO VideoVALUES (‘VHS’, $60.00, 10, 145);

i was told to forget about the shopping cart.

Post #1434538

opc.three

Posted Friday, March 22, 2013 4:28 PM

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That looks like Oracle code Ermm

__________________________________________________________________________________________________
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato

Believe you can and you're halfway there. --Theodore Roosevelt

Everything Should Be Made as Simple as Possible, But Not Simpler --Albert Einstein

The significant problems we face cannot be solved at the same level of thinking we were at when we created them. --Albert Einstein

1 apple is not exactly 1/8 of 8 apples. Because there are no absolutely identical apples. --Giordy

Post #1434543

opc.three

Posted Friday, March 22, 2013 4:34 PM

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You;re really making us work over here...

I tried polishing up the SQL you provided so it would run on SQL Server but it's not even close. Syntax errors everywhere, mis-aligned columns on the insert, constraints reffing non-existent columns.

Try again?

Oracle code is fine, we can easily switch it to run on SQL Server and we can write ANSI-standard SELECT statements that will run on both.

PS ...oh yeah, and this time, expected results would be nice, and show us what you have tried Wink

Post #1434546

yasser.akhan

Posted Friday, March 22, 2013 5:47 PM

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meh dont worry about it, it was sort of a last ditch effort. thanks for looking at it though

Post #1434553

kevaburg

Posted Monday, March 25, 2013 7:58 AM

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Sorry for saying this but whether it is PL-SQL or T-SQL is somewhat irrelevant......the results you expected are somewhat basic and not particularly taxing. Are you sure this person had the right to expect you to perform a task like this....?

Post #1434930

Lynn Pettis

Posted Monday, March 25, 2013 8:39 AM

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kevaburg (3/25/2013)

Curious, to whom was this comment addressed?

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Post #1434946

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