Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 6HOA
A new table has been requested to support tracking automated emails sent to customers. Create the table and add data as described below.
- Tablename: email_log
- Columns: emailid (numeric), emaildate (datetime), customer# (numeric)
- Primary key: emailid column, define as an Identity Column
- Add the following data rows and display resulting rows (if any errors occur, explain why the error is expected)
-
- 1. Emaildate = current date, customer# = 1007
- 2. Emailid = specify to use the column default value, emaildate = current date, customer# = 1008
- 3. Emailid = 25, emaildate = current date, customer# = 1009
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PROBLEM:
Create a table named BOOK_STORES to include the columns listed in the following chart.
Column Name
Store_ID
Name
Contact
Rep_ID
Datatype
NUMBER (8)
VARCHAR2(30)
VARCHAR2(30)
VARCHAR2(5)
Constraint Comments
PRIMARY KEY column
Should be UNIQUE and NOT NULL
:
INSTRUCTIONS:
Submit the complete code on doc file, run and also submit the snapshot of the result. You can paste
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A new table has been requested to support tracking automated emails sent to customers.Create the table and add data as described below
Tablename: email_logColumns: emailid (numeric), emaildate (datetime), customer# (numeric)Primary key: emailid column, define as an Identity Column Add the following data rows and display resulting rows (if any errors occur, explain why theerror is expected)
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- What is the purpose of a column alias?arrow_forwardCreate the following indexes: a. Create an index named TRIP_INDEX1 on the TRIP_NAME column in the TRIPtable. b. Create an index named TRIP_INDEX2 on the TYPE column in the TRIP table. c. Create an index named TRIP_INDEX3 on the LAST_NAME and FIRST_NAME columns in the CUSTOMER table.arrow_forwardAdd a constraint to make sure the Rep_ID value entered in the BOOK_STORES table is a valid value contained in the STORE_REPS table. The Rep_ID columns of both tables were initially created as different datatypes. Does this cause an error when adding the constraint? Make table modifications as needed so that you can add the required constraint.arrow_forward
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