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Define a table in SQL known as Client that is used to store information about the clients. Define CLIENT_NO as the primary key whose first letter must begin with ‘C'. Also ensure that the column ‘NAME' should not permit NULL values.
Column name Data type SizeCLIENT_NO Varchar2 6NAME Varchar2 20ADDRESS1 Varchar2 30ADDRESS2 Varchar2 30CITY Varchar2 15STATE Varchar2 15PINCODE Number 6BAL_DUE Number 10, 2
Ans:CREATE TABLE CLIENT( CLIENT_NO VARCHAR2(6) PRIMARY KEY CHECK (CLIENT_NO LIKE‘C%'), NAME VARCHAR2(20) NOT NULL, ADDRESS1 VARCHAR2(30), ADDRESS2 VARCHAR2(30), CITY VARCHAR2(15), STATE VARCHAR2(15), PINCODE NUMBER(6), BAL_DUE NUMBER(10,2))
Define an abstraction by which relationships are treated as higher level entities Ans: Aggregation. It is an abstraction by which relationships are treated as higher level
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write an SQL statement to create the database in MYSQL server
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Explain what is Aggregation? Aggregation: Aggregation is an significant concept in database design whereas composite objects could be modelled during the design of database a
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Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
Objectives Define the terms RECOVERY and INTEGRITY; Define Recovery Techniques; Explain Error and Error detection techniques, and Define types of Authorisation.
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