EP MINDTAPV2.0 FOR CORONEL/MORRIS'S DAT
13th Edition
ISBN: 9780357427866
Author: Coronel
Publisher: Cengage Learning
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Chapter 11, Problem 23P
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 commands required to create the indexes you recommended in Problem 22.
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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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- Problems 27 and 28 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_QOH, P_PRICE, V_CODE FROM PRODUCT WHERE P_QOH P_MIN AND P_MIN = P_REORDER AND P_REORDER = 50 ORDER BY P_QOH; What indexes would you recommend? Write the commands to create those indexes.arrow_forwardProblems 25 and 26 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_QOH, P_PRICE, V_CODE FROM PRODUCT WHERE V_CODE = '21344' ORDER BY P_CODE; How should you rewrite the query to ensure that it uses the index you created in your solution to Problem 25?arrow_forwardProblems 2932 are based on the following query: SELECT CUS_CODE, MAX(LINE_UNITSLINE_PRICE) FROM CUSTOMER NATURAL JOIN INVOICE NATURAL JOIN LINE WHERE CUS_AREACODE = '615' GROUP BY CUS_CODE; How would you rewrite the query to ensure that the index you created in Problem 31 is used?arrow_forward
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- What is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?arrow_forwardHow do you create an index? How do you create a unique index? What is the difference between an index and a unique index?arrow_forwardHow is adding a NOT NULL constraint to an existing table different from adding other types of constraints?arrow_forward
- Problems 2932 are based on the following query: SELECT CUS_CODE, MAX(LINE_UNITSLINE_PRICE) FROM CUSTOMER NATURAL JOIN INVOICE NATURAL JOIN LINE WHERE CUS_AREACODE = '615' GROUP BY CUS_CODE; Assuming that you follow the recommendations you gave in Problem 29, how would you rewrite the query?arrow_forwardWhich type of constraint can be used to make certain the category for a book is included when a new book is added to inventory?arrow_forwardProblems 1114 are based on the following query: SELECT P_CODE, SUM(LINE_UNITS) FROM LINE GROUP BY P_CODE HAVING SUM(LINE_UNITS) (SELECT MAX(LINE_UNITS) FROM LINE); Write the command to create statistics for this table.arrow_forward
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