Java

Your database management tool lists the data type of the State column as “Var Char (255)”. Why is that a problem?
State column as “Var Char (255)” . why ?
Data type of state column is shown as var char(255). because State column contains string values. string "NE" is given there in state column. since database management tool is showing the type of state.
var char is used to store string or text. it is a variable size character data type. its maximum length is 255 which is shown inside the bracket that you can vary.
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Java Your database management tool lists the data type of the State column as “Var Char...
oracle only
database:
DROP TABLE ORDERITEMS;
DROP TABLE Orders;
DROP TABLE BOOKAUTHOR;
DROP TABLE BOOKS;
DROP TABLE PROMOTION;
DROP TABLE AUTHOR;
DROP TABLE CUSTOMERS;
DROP TABLE PUBLISHER;
CREATE TABLE Customers
( Customer# NUMBER(4),
LastName VARCHAR2(10) NOT NULL,
FirstName VARCHAR2(10) NOT NULL,
Email VARCHAR(40),
Address VARCHAR2(20),
City VARCHAR2(12),
State VARCHAR2(2),
Zip VARCHAR2(5),
Referred NUMBER(4),
Region CHAR(2),
CONSTRAINT customers_customer#_pk PRIMARY KEY(customer#)
);
INSERT INTO CUSTOMERS
VALUES (1001, 'MORALES', 'BONITA', 'bomor@gmail.com', 'P.O.
BOX 651', 'EASTPOINT', 'FL', '32328', NULL, 'SE');
INSERT INTO CUSTOMERS
VALUES...