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Database elements contain tables, rows, columns and fields. These are what are used to build a database.
The following are the components that a database will have:
Popular databases that are used in the organizations include:
Following are the best examples of databases:
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Code for: Computing and Mathematics Database Systems
Solution:
create table storeitem(
storeId NUMBER(10),
itemId NUMBER(10),
totalStock NUMBER(10)
);
create table store(
storeId NUMBER(10),
address varchar2(50),
city varchar2(50),
state varchar2(50),
pincode NUMBER(10),
contactNo NUMBER(10),
CONSTRAINT store_pk PRIMARY KEY (storeId)
);
create table customer(
customerId NUMBER(10),
firstName varchar2(50),
lastname varchar2(50),
residence varchar2(50),
deliveryAddress varchar2(50),
email varchar2(50),
contactNo varchar2(50),
CONSTRAINT customer_pk PRIMARY KEY (customerId)
);
create table employee(
employeeId NUMBER(10) ,
storeId NUMBER(10),
firstName varchar2(50),
lastName varchar2(50),
dateOfJoining varchar2(50),
contactNo NUMBER(10),
address varchar2(50),
email varchar2(50),
designation varchar2(50),
department varchar2(50),
CONSTRAINT employee_pk PRIMARY KEY (employeeId)
);
create table customerorder(
customerId NUMBER(10),
orderId NUMBER(10)
);
create table item(
itemId NUMBER(10),
name varchar2(50),
dimensions varchar2(50),
price varchar2(50),
weight varchar2(50),
description varchar2(50),
CONSTRAINT item_pk PRIMARY KEY (itemId)
);
create table orders(
orderId NUMBER(10),
itemId NUMBER(10),
totalCost varchar2(50),
date varchar2(50),
paymentMode varchar2(50),
delivery varchar2(50),
CONSTRAINT order_pk PRIMARY KEY (orderId)
);
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