Fname A variable character field up to 15 characters in length. Must have a value Lname A variable character field up to 15

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1 Customer Table CUSTOMER (CustomerNo, fname, lname, phone) CustomerNo Primary key, numeric, 4 digits Fname A variable character field up to 15 characters in length. Must have a value Lname A variable character field up to 15 characters in length. Must have a value. Phone A variable character field up to 12 characters in length. Product Table PRODUCT (ProdNo, description, cost) ProdNo Primary key, numeric, 5 digits Description A variable character field up to 20 characters in length. Cost A floating number. Must have a value. i.e: Order Table (You are not allowed to use ORDER as table name since it is reserved word!!!) PORDER (orderno, orderdate, city, postcode, customerno) OrderNo Primary key, numeric, 6 digits OrderDate Date field that will include day, month and year. (dd-mon-yyyy). City A variable character field up to 20 characters in length. Must have a value. Postcode A variable character field up to 10 characters. Must have a value.

2 ProdOrd Table PRODORD (orderno, prodno, quantity, price) OrderNo Forms part of the primary key, must match a value in the ORDER table. ProdNo Forms part of the primary key, must match a value in the PRODUCT table. quantity Numeric. 2 digits, greater than zero. 1- Use above specifications and create tables in SQL. SQL> create table customer( 2 customerno number(4) constraint customer_customerno_pk Primary Key, 3 fname varchar2(15) not null, 4 lname varchar2(15) not null, 5 phone varchar2(12)); SQL> create table product( 2 prodno number(5) constraint product_prodno_pk Primary Key, 3 description varchar2(20), 4 cost number(5,2) Not Null); SQL> 1 create table porder( 2 orderno number(6) constraint order_orderno_pk Primary Key, 3 orderdate date, 4 city varchar2(20) not null, 5* postcode varchar2(10) not null) SQL> 1 create table prodord( 2 orderno number(6) constraint porder_orderno_fk References porder(orderno), 3 prodno number(5) constraint prodord_prodno_fk References product(prodno), 4 quantity number(2) constraint prodord_quantity_ck Check (quantity>0), 5* constraint prodord_orderno_prodno_pk Primary Key(orderno,prodno))

3 2- Write appropriate SQL statements to do the following steps. Add a new column to CUSTOMER table called gender. The column must contain a single character field, either M for male or F for female. Must not be null. add gender char(1) constraint customer_gender_ck Check( upper(gender) in ('M','F')) Not Null; Add a new constraint to CUSTOMER table, so that combination of fname and lname columns must be unique. add constraint customer_fname_lname_uk Unique(fname,lname); Add a new column to PRODUCT table called color. The column must contain variable character string up to 10 characters. Default color is White. SQL> alter table product add color varchar2(10) Default 'WHITE'; CustomerNo must be foreign key in PORDER table. So add foreign key constraint to PORDER table. SQL> Alter table porder Add customerid number(4) constraint porder_customerid_fk References Customer(customerNo); Modify CUSTOMER table to increase the size of phone column to 15 characters. modify phone varchar2(15); Modify ORDER table and add today s date to be DEFAULT value for OrderDate column. SQL> alter table porder modify orderdate Default sysdate; Drop postcode column from Order table. SQL> alter table porder drop column postcode; 3 Insert at least 3 records in each of the tables. --Populating Product table: 2 values(10,'potato Ricer',39.99,'White'); 2 values(11,'garlic Slicer',19.99,'Silver'); 2 values(12,'oven Glove',9.99,'Green');

4 --Populating customer table: 2 values(10,'nilesh','shah',' ','m'); 2* values(11,'rob','coronel',' ','m') 2 values(12,'john','patrick',' ','m'); --Populating porder table: 2 values(101,sysdate,'new York',10); 2 values(102,sysdate-1,'toronto',11); 2 values(103,sysdate-8,'london',11); --Populating ProdOrd table: 2 values(101,10,3); 2 values(102,11,4); 2 values(102,10,8); Note that: The DEFAULT value ensured that a particular column will always have a value when a new row is inserted. The default value gets overwritten if a user enters another value. The default value is used if a null value is inserted. Example: (sysdate is the Default value for orderdate column. If you leave orderdate column null or omit it default value will be inserted into the table.) SQL> insert into porder(orderno, city,customerid) 2 values(101,'new York',10); Check your table now! New row that you have inserted includes today s date for the orderdate column.

5 4 Commit your transactions till now. SQL> commit; 5- Insert new records in PRODUCT table using the sequence that you have created above. SQL> insert into product(prodno,description,cost,color) 2 values(prod_prodno_seq.nextval,'turkey Press',12.99,'Red'); 6- Rollback to see the effect. SQL>Rollback; 7- Drop all tables that you have created. (PORDER, PRODUCT, CUSTOMER, PRODORD) SQL> drop table prodord; SQL> drop table porder; SQL> drop table product; SQL> drop table customer; --END OF LAB (SEMESTER)--

Full file at

Full file at SQL for SQL Server 1 True/False Questions Chapter 2 Creating Tables and Indexes 1. In order to create a table, three pieces of information must be determined: (1) the table name, (2) the column names,