Oracle 12c: SQL
Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 3, Problem 1RQ

Which command is used to create a table based on data already contained in an existing table?

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Explanation of Solution

Command used to create a table:

  • Creating table comes under Data Definition Language (DDL).
  • It is useful to create a table from an existing table because the programmer does not need to copy all the data manually using an INSERT command.
  • The command used to create a table depending upon the data already contained in an existing table is as follows:

  CREATE TABLE ... AS command with a subquery

  • For example, consider the creation of a table named semester from an already existing table named mid_semester.

CREATE TABLE semester AS (SELECT roll_no, exam_name, grades from mid_semester);

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How to Design DB Tables for any Application? (The Basics); Author: Studytonight;https://www.youtube.com/watch?v=XUdNVaSikqY;License: Standard YouTube License, CC-BY
Create a Table (Introduction to Oracle SQL); Author: Database Star;https://www.youtube.com/watch?v=BiV1IrzB1sY;License: Standard Youtube License