TREATMENT Column Name TID PID DNAME TDATE SPECIALTY DataType INT(3) INT(5) VARCHAR(10) VARCHAR(10) DATE Constraint PRIMARY KEY a) Write SQL commands to create the above two database table base on the given field names, data types and constraints required. b) Write an SQL command to change the field length of pname to VARCHAR(20) in the patient table. c) Add a 'problem' column in between DNAME and TDATE in the treatment table. The column will allow VARCHAR(20) as a data type. d) Change column DNAME to Doctor_Name. e) Delete the SPECIALTY column in treatment table.

TREATMENT Column Name TID PID DNAME TDATE SPECIALTY DataType INT(3) INT(5) VARCHAR(10) VARCHAR(10) DATE Constraint PRIMARY KEY a) Write SQL commands to create the above two database table base on the given field names, data types and constraints required. b) Write an SQL command to change the field length of pname to VARCHAR(20) in the patient table. c) Add a 'problem' column in between DNAME and TDATE in the treatment table. The column will allow VARCHAR(20) as a data type. d) Change column DNAME to Doctor_Name. e) Delete the SPECIALTY column in treatment table.

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter12: Subqueries And Merge Statements

Section: Chapter Questions

Problem 19MC

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