EP MINDTAPV2.0 FOR CORONEL/MORRIS'S DAT
13th Edition
ISBN: 9780357427866
Author: Coronel
Publisher: Cengage Learning
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Textbook Question
Chapter 11, Problem 24P
Problems 22–24 are based on the following query:
SELECT | P_CODE, P_DESCRIPT, P_PRICE, P.V_CODE, V_STATE |
FROM | PRODUCT P, VENDOR V |
WHERE | P.V_CODE = V.V_CODE |
AND V_STATE = 'NY' | |
AND V_AREACODE = '212' | |
ORDER BY | P_PRICE; |
Write the command(s) used to generate the statistics for the PRODUCT and VENDOR tables.
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Task 2:
The Driver Relationship team wants to ensure that the all driving license IDs in the active drivers table have the length of 7. Alter the ACTIVE_DRIVERS table created in Chapter 8, Activity 1 to check the length of the DRIVER_DRIVING_LICENSE_ID.
Add a CHECK to the ACTIVE_DRIVERS table to enforce a driver license length of 7.
Test Query:
SELECT DISTINCT(constraint_name)
FROM information_schema.check_constraints
WHERE constraint_schema = 'InstantRide'
AND constraint_name = 'ACTIVE_DRIVERS_chk_1'
Expected Results
CONSTRAINT_NAME
ACTIVE_DRIVERS_chk_1
Task 6:
The Car Maintenance team considered that the available maintenance tasks should also have the price information in the database. Alter the MAINTENANCE_TYPES table to include a new column named MAINTENANCE_PRICE of type FLOAT.
Alter the MAINTENANCE_TYPES table to include pricing information.
The OR_CASE table has one bro per surgical case. The OR_LOG table has one row per surgical log. It's LOG_ID column identifies each log. If a case has an associated log, OR_CASE.LOG_ID will store the logs ID. Otherwise, it will be null. A query uses the following join:
FROM OR_CASE
INNER JOIN OR_LOG
ON OR_CASE.LOG_ID=OR_LOG.LOG_ID
which of the following would be the results?
A. A log with no associated case.B. A log with an associated case.
C. A case with no associated log.D. Rows with no case or log.
Chapter 11 Solutions
EP MINDTAPV2.0 FOR CORONEL/MORRIS'S DAT
Ch. 11 - Prob. 1RQCh. 11 - What index should you create? Write the required...Ch. 11 - What is the focus of most performance-tuning...Ch. 11 - What are database statistics, and why are they...Ch. 11 - How are database statistics obtained?Ch. 11 - What database statistics measurements are typical...Ch. 11 - How is the processing of SQL DDL statements (such...Ch. 11 - In simple terms, the DBMS processes a query in...Ch. 11 - If indexes are so important, why not index every...Ch. 11 - What is the difference between a rule-based...
Ch. 11 - Prob. 11RQCh. 11 - What are some general guidelines for creating and...Ch. 11 - Prob. 13RQCh. 11 - Prob. 14RQCh. 11 - Prob. 15RQCh. 11 - SELECT SELECT EMP_LNAME, EMP_FNAME, EMP_AREACODE,...Ch. 11 - Problem 1 and 2 are based on the following query:...Ch. 11 - Using Table 11.4 as an example, create two...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Prob. 6PCh. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 15 and 16 are based on the following...Ch. 11 - Problems 15 and 16 are based on the following...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Problems 1721 are based on the following query:...Ch. 11 - SELECT SELECT P_CODE, P_DESCRIPT, P_PRICE,...Ch. 11 - Problems 2224 are based on the following query:...Ch. 11 - Problems 2224 are based on the following query:...Ch. 11 - Problems 25 and 26 are based on the following...Ch. 11 - Problems 25 and 26 are based on the following...Ch. 11 - Prob. 27PCh. 11 - Problems 27 and 28 are based on the following...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...
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- Ensure that the only legal values for the BDRMS column in the CONDO_UNIT table are 1, 2, or 3.arrow_forwardJOIN TABLES One row in the PAT_ENC table represents one patient encounter. One row in the ORDER MED table represents one medication order. One patient encounter can have many medication orders but one medication order can only have one patient encounter. In other words, the cardinality of this PAT_ENC to ORDER_MED relationship is one-to- many. You start a query with PAT_ENC. You then add ORDER_MED using an inner join. What is true about the granularity of the result set before and after adding the ORDER_MED table? SELECT ONE OF THE FOLLOWING A. The granularity stays at one row per patient encounter. B. The granularity stays at one row per medication order. C. The granularity changes from one row per patient encounter to one row per medication order on an encounter. D. The granularity changes from one row per medication order to one row per patient encounter.arrow_forwardConsider the Table: Employee Write a Query First to Alter Table to add a new Column managername to the employee table Write an Update query using Self-Join and Case When/Then to update the managername for the respective employees in the managername column. Where there is no manager present, then the CASE When/Then should update the text ‘No Manager’ in the managername column. [Hint: Jennifer has no Manager, everyone else has a manager]arrow_forward
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