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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))
explain the mapping constraints
(A) For the relation; CarSales (RegNo, BuyerName, Address, SalesPerson, Make, Model, Commission) The following functional dependences hold, RegNo _ID à Make, Model Reg
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