Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 17MC
Which of the following represents a field in a table?
- a. a record
- b. a row
- c. a column
- d. an entity
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which object describes a set of values in a table?
a) A relationship
b) An attribute
c) An entity
d) A rule
Views in SQL are kind of virtual tables. A view also has rows and columns as they are in a real table in the database. We can create a view by selecting fields from one or more tables present in the database. A View can either have all the rows of a table or specific rows based on certain conditions.
Under what circumstances would you create a View?
1-Write the syntax to insert into a relational table called students the address column references an object table called addresses that was created using an address_type.
Other columns exist in the students table, but you are only inserting into the ones below. Aliases used should be the first letter of the table name, eg students would be s, addresses would be a
Relational Table Name
students
attribute
student_id
attribute
surname
attribute
address
Chapter 1 Solutions
Oracle 12c: SQL
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Discuss the problems that can be caused by data...Ch. 1 - Explain the role of a primary key.Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - What type of relationship can’t be stored in a...Ch. 1 - Identify at least three reasons an organization...
Ch. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Which of the following has no partial or...Ch. 1 - Prob. 9MCCh. 1 - Which of the following has no partial dependencies...Ch. 1 - Which of the following has no repeating groups but...Ch. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - A unique identifier for a data row that consists...Ch. 1 - Which of the following symbols represents an...Ch. 1 - Prob. 16MCCh. 1 - Which of the following represents a field in a...Ch. 1 - Which of the following defines a relationship in...Ch. 1 - When part of the data in a table depends on a...Ch. 1 - Which of the following is used to join data...Ch. 1 - Which tables and fields would you access to...Ch. 1 - Prob. 2HOACh. 1 - Prob. 3HOACh. 1 - Prob. 4HOACh. 1 - Access path A database table is composed of...Ch. 1 - Prob. 6HOACh. 1 - Prob. 7HOACh. 1 - Prob. 8HOACh. 1 - Prob. 9HOACh. 1 - Prob. 10HOA
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- Which function determines the number of rows in a table? a. ROW b. CALCULATE c. COUNT d. NUMBERarrow_forwardWhich of the following are data table requirements? a. Structure of the data table needs to be established with values and parameters b. Enter input values to be used in the analysis c. Input value results will be stored in rows and colums d. None of the Above e.All of the abovearrow_forwardInsert, Update, and Delete statements can be referred to as blank queries. a result b select c database d actionarrow_forward
- What happens if you try to decrease the scale or precision of a NUMBER column to a value less than the data already stored in the field?arrow_forwardWhich of the following data dictionary objects should be used to view information about the constraints in a database? USER_TABLES USER_RULES USER_COLUMNS USER_CONSTRAINTS None of the above objects should be used.arrow_forwardA unique identifier for a data row that consists of more than one field is commonly called a: primary plus key composite primary key foreign key none of the abovearrow_forward
- Delete the index named ITEM_INDEX3.arrow_forwardThe following tables provide a very small portion of the data that will be kept in the database. These data need to be inserted into the database for testing purposes. Write the INSERT commands necessary to place the following data in the tables that were created in Problem 65. RENTAL RENT_NUM RENT_DATE MEM_NUM 1001 01-MAR-13 103 1002 01-MAR-13 105 1003 02-MAR-13 102 1004 02-MAR-13 110 1005 02-MAR-13 111 1006 02-MAR-13 107 1007 02-MAR-13 104 1008 03-MAR-13 105 1009 03-MAR-13 111 VIDEO VID_NUM VID_INDATE MOVIE_NUM 54321 18-JUN-12 1234 54324 18-JUN-12 1234 54325 18-JUN-12 1234 34341 22-JAN-11 1235 34342 22-JAN-11 1235 34366 02-MAR-13 1236 34367 02-MAR-13 1236 34368 02-MAR-13 1236 34369 02-MAR-13 1236 44392 21-OCT-12 1237 44397 21-OCT-12 1237 59237 14-FEB-13 1237 61388 25-JAN-11 1239 61353 28-JAN-10 1245 61354 28-JAN-10 1245 61367 30-JUL-12 1246 61369 30-JUL-12 1246arrow_forwardWhich of the following data dictionary objects should be used to view information about the constraints in a database? ( refer to the tables in the JustLee Books database). a. USER_TABLES b. USER_RULES c. USER_COLUMNS d. USER_CONSTRAINTS e. None of the above objects should be usedarrow_forward
- . Which of the following is not a valid statement? (refer to the tables in the JustLee Books database) a. You can change the name of a table only if it doesn’t contain any data.b. You can change the length of a column that doesn’t contain any data.c. You can delete a column that doesn’t contain any data.d. You can add a column to a table.arrow_forwardCreate the table Students (sno, sname, dateofbirth, program, cgpa) Fees (sno, date, fee ) Elective (sno, subcode, sub_name) Marks (sno, subcode, marks, grade) Subject ( subcode, subjectname, credit) Constraints (dateofbirth should be less than todays date in student table) (fee can not zero or negative in fee table) (Credits can not be zero or less in subject table) Query List the name of the student who got maximum cgpa. List the maximum, average and minimum CGPA for every program List the name of students who have choosed 4 credit subject List the total fee paid by every studentsarrow_forward6. Delete all the records in "student" table. Enter your answer 7. Delete a record in "student" table where its id is 1. Enter your answer 8. Get only the "name" and "birthdate" of the "student" table where its "name" starts with "Jo" Enter your answerarrow_forward
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