Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 3MC
Which of the following is not a correct statement?
- a.A table can be modified only if it doesn’t contain any rows of data.
- b. The maximum number of characters in a table name is 30.
- c.You can add more than one column at a time to a table.
- d. You can’t recover data contained in a table that has been truncated.
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Which of the following is not a correct statement?a. A table can be modified only if it doesn’t contain any rows of data.b. The maximum number of characters in a table name is 30.c. You can add more than one column at a time to a table.d. You can’t recover data contained in a table that has been truncated.
Which of the following is true? (refer to the tables in the JustLee Books database)a. If you truncate a table, you can’t add new data to the table.b. If you change the default value of an existing column, all existing rows containing a NULL value in the same column are set to the new DEFAULT value.c. If you delete a column from a table, you can’t add a column to the table with the same name as the previously deleted column.d. If you add a column to an existing table, it’s always added as the last column of the table.
PYTHON CODE
Using Artists.csv (link below), write a query that returns all lines that are female artists only, with begin date greater than 1950 but no greater than 2000
Write a query that will return all lines of British Male artists, who's first names starts with the letter ‘A’ and has an end date earlier than 1990
Write a query that will write to a file all lines that have Japanese Artists who’s difference of end date and begin date exceeds 100 years. I.e. if artist begins in 1900 and ends in 2005, then they would be included in the output (2005-1900 = 105 years)
Write a query that will write and find to a file the artist who’s been at the Museum the longest (the widest gap between Begin Date and End Date)
Artists.csv: https://media.githubusercontent.com/media/MuseumofModernArt/collection/master/Artists.csv
Chapter 3 Solutions
Oracle 12c: SQL
Ch. 3 - Which command is used to create a table based on...Ch. 3 - Prob. 2RQCh. 3 - What guidelines should you follow when naming...Ch. 3 - What is the difference between dropping a column...Ch. 3 - Prob. 5RQCh. 3 - What happens to the existing rows of a table if...Ch. 3 - Explain the difference between truncating a table...Ch. 3 - Prob. 8RQCh. 3 - What happens if you try to decrease the scale or...Ch. 3 - Are a table and the data contained in the table...
Ch. 3 - Which of the following is a correct statement?
You...Ch. 3 - Prob. 2MCCh. 3 - Which of the following is not a correct...Ch. 3 - Which of the following is not a valid SQL...Ch. 3 - Which of the following is true? a. If you truncate...Ch. 3 - Which of the following commands creates a new...Ch. 3 - Which of the following commands drops any columns...Ch. 3 - Which of the following statements is correct?
A...Ch. 3 - Which of the following commands removes all data...Ch. 3 - Which of the following commands changes a table’s...Ch. 3 - Prob. 11MCCh. 3 - Which of the following is not a valid...Ch. 3 - Which of the following characters can be used in a...Ch. 3 - Which of the following is true?
All data in a...Ch. 3 - Prob. 15MCCh. 3 - Which of the following commands creates a new...Ch. 3 - Which of the following is a valid table name? a....Ch. 3 - Prob. 18MCCh. 3 - Which object in the data dictionary enables you to...Ch. 3 - Prob. 20MCCh. 3 - Create a new table containing the category code...Ch. 3 - Create a new table containing these four columns:...Ch. 3 - Add two columns to the EMPLOYEES table. One...Ch. 3 - Modify the Job_class column of the EMPLOYEES table...Ch. 3 - Prob. 5HOACh. 3 - Rename the EMPLOYEES table as JL_EMPS.
Ch. 3 - Create a new table containing these four columns...Ch. 3 - Prob. 8HOACh. 3 - Truncate the BOOK_PRICING table, and then verify...Ch. 3 - Delete the BOOK_PRICING table permanently so that...
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