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Create table employee and enter employee data in SQL?
Consider the following relational schemas: EMPLOYEE (EMPLOYEE_NAME, STREET, CITY) WORKS (EMPLOYEE_NAME, COMPANYNAME, SALARY) COMPANY (COMPANY_NAME, CITY) Specify the table definitions in SQL.
Ans. CREATE TABLE EMPLOYEE( EMPLOYEE_NAME VARCHAR2(20) PRIMARY KEY,STREET VARCHAR2(20),CITY VARCHAR2(15));CREATE TABLE COMPANY( COMPANY_NAME VARCHAR2(50) PRIMARY KEY,CITY VARCHAR2(15));CREATE TABLE WORKS( EMPLOYEE_NAME VARCHAR2(20)REFERENCES EMPLOYEE(EMPLOYEE_NAME,COMPANYNAME VARCHAR2(50)REFERENCES COMPANY(COMPANY_NAME,SALARY NUMBER(6),CONSTRAINT WORKS_PK PRIMARY KEY(EMPLOYEE_NAME, COMPANY_NAME));
Describe analysis of access paths To describe analysis of access paths, consider an example of the design of a company's employee skills database. A part of the object model fr
CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., cruise control) that were sold at a de
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
Explain pipelining. Ans: In order to describe pipelining in simple terms, think of it as breaking down processor functions into smaller and smaller parts. For instance,
Ask questApollo Hospitals (AH) is a popular medical service provider in Oman. AH wants to automate its business functions into an information system. The proposed information syst
Discuss the count function? The COUNT function used returns the number of tuples or values fixed in a query. The count function comprises two types of syntax: (1) COUNT (*)
We have a buildup of payments that need to be processed. You will need:- To prepare customer account on our site Process payment (you must have working Paypal account to d
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
Question: a) Discuss the concept of data independence, explaining its importance in a database environment. b) To address the issue of data independence, the ANSI-SPARC t
Need for Multiple Access Paths In practice, most of the online information systems need the support of multi-key files. For example, consider a banking database application hav
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