Solutions for Database Systems: Design, Implementation, & Management
Problem 2RQ:
Explain why it might be more appropriate to declare an attribute that contains only digits as a...Problem 4RQ:
What are referential constraint actions?Problem 5RQ:
What is the purpose of a CHECK constraint?Problem 6RQ:
Explain when an ALTER TABLE command might be needed.Problem 8RQ:
What is the difference between using a subquery with a CREATE TABLE command and using a subquery...Problem 1P:
Write the SQL code that will create only the table structure for a table named EMP_1. This table...Problem 2P:
Having created the table structure in Problem 1, write the SQL code to enter the first two rows for...Problem 4P:
Write the SQL code that will save the changes made to the EMP_1 table (if supported by your DBMS).Problem 5P:
Write the SQL code to change the job code to 501 for the person whose employee number (EMP_NUM) is...Problem 6P:
Write the SQL code to delete the row for William Smithfield, who was hired on June 22, 2004, and...Problem 7P:
Write the SQL code to create a copy of EMP_1, including all of its data, and naming the copy EMP_2.Problem 8P:
Using the EMP_2 table, write the SQL code that will add the attributes EMP_PCT and PROJ_NUM to...Problem 9P:
Using the EMP_2 table, write the SQL code to change the EMP_PCT value to 3.85 for the person whose...Problem 16P:
Create the CUSTOMER table structure illustrated in Figure P8.16. The customer number should store...Problem 17P:
Create the INVOICE table structure illustrated in Figure P8.16. The invoice number should store...Problem 20P:
Create an Oracle sequence named CUST_NUM_SEQ to generate values for customer numbers. The sequence...Problem 21P:
Create an Oracle sequence named INV_NUM_SEQ to generate values for invoice numbers. The sequence...Problem 23P:
Modify the CUSTOMER table to include the customers date of birth (CUST_DOB), which should store date...Problem 26P:
Create a trigger named trg_updatecustbalance to update the CUST_BALANCE in the CUSTOMER table when a...Problem 29P:
Write a trigger to update the customer balance when an invoice is deleted. Name the trigger...Problem 31P:
Create a trigger named trg_line_total to write the LINE_TOTAL value in the LINE table every time you...Problem 32P:
Create a trigger named trg_line_prod that automatically updates the quantity on hand for each...Problem 33P:
Create a stored procedure named prc_inv_amounts to update the INV_SUB-TOTAL, INV_TAX, and INV_TOTAL....Problem 34P:
Create a procedure named prc_cus_balance_update that will take the invoice number as a parameter and...Problem 35P:
Modify the MODEL table to add the attribute and insert the values shown in the following table....Problem 37P:
Modify the CHARTER table to add the attributes shown in the following table. TABLE P8.37 ATTRIBUTES...Problem 38P:
Write the sequence of commands required to update the CHAR_WAIT_CHG attribute values in the CHARTER...Problem 39P:
Write the sequence of commands required to update the CHAR_FLT_CHG_HR attribute values in the...Problem 40P:
Write the command required to update the CHAR_FLT_CHG attribute values in the CHARTER table.Problem 41P:
Write the command required to update the CHAR_TAX_CHG attribute values in the CHARTER table.Problem 42P:
Write the command required to update the CHAR_TOT_CHG attribute values in the CHARTER table.Problem 44P:
Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new...Problem 45P:
Create a trigger named trg_pic_hours that automatically updates the PILOT table when a new CREW row...Problem 46P:
Create a trigger named trg_cust_balance that automatically updates the CUSTOMER tables CUS_BALANCE...Problem 47P:
Write the SQL code to create the table structures for the entities shown in Figure P8.47. The...Problem 48P:
The following tables provide a very small portion of the data that will be kept in the database. The...Problem 49P:
For Questions 49-63, use the tables that were created in Problem 47 and the data that was loaded...Problem 51P:
Write a single SQL command to increase all price rental fee values in the PRICE table by 0.50.Problem 52P:
Alter the DETAILRENTAL table to include a derived attribute named DETAIL_DAYS-LATE to store integers...Problem 53P:
Update the DETAILRENTAL table to set the values in DETAIL_RETURNDATE to include a time component....Problem 54P:
Alter the VIDEO table to include an attribute named VID_STATUS to store character data up to four...Problem 55P:
Update the VID_STATUS attribute of the VIDEO table using a subquery to set the VID_STATUS to OUT for...Browse All Chapters of This Textbook
Chapter 1 - Database SystemsChapter 2 - Data ModelsChapter 3 - The Relational Database ModelChapter 4 - Entity Relationship (er) ModelingChapter 5 - Advanced Data ModelingChapter 6 - Normalization Of Database TablesChapter 7 - Introduction To Structured Query Language (sql)Chapter 8 - Advanced SqlChapter 9 - Database DesignChapter 10 - Transaction Management And Concurrency Control
Chapter 11 - Database Performance Tuning And Query OptimizationChapter 12 - Distributed Database Management SystemsChapter 13 - Business Intelligence And Data WarehousesChapter 14 - Big Data And NosqlChapter 15 - Database Connectivity And Web TechnologiesChapter 16 - Database Administration And Security
Sample Solutions for this Textbook
We offer sample solutions for Database Systems: Design, Implementation, & Management homework problems. See examples below:
Data: Data is set of variables which are used for describing specific topic. It can be meaningless...Importance of Data Models: The main function of a data model is that they help to understand...Chapter 3, Problem 1RQGiven database tables: Table Name: CHARTER CHAR_TRIP CHAR_DATE CHAR_PILOT CHAR_COPILOT AC_NUMBER...Chapter 3, Problem 25PGiven database tables: Table Name: CHARTER CHAR_TRIP CHAR_DATE CHAR_PILOT CHAR_COPILOT AC_NUMBER...Given database tables: Table Name: CHARTER CHAR_TRIP CHAR_DATE CHAR_PILOT CHAR_COPILOT AC_NUMBER...Given database tables: Table Name: CHARTER CHAR_TRIP CHAR_DATE CHAR_PILOT CHAR_COPILOT AC_NUMBER...Conditions: Following are the conditions should be met before an entity is referred as a weak...
Entity Supertype: The entity supertype is an entity type that has the relation with one or more...Normalization: The process used to minimize data redundancy and dependency in a relational database...Construct the dependency diagram with all partial and transitive dependencies: The relational schema...Construct the dependency diagram with all partial and transitive dependencies: The relational schema...Using “DATE” data type than character data type: It is preferable to use “DATE” data type than...Chapter 7, Problem 3RQDifference between “WHERE” and “HAVING” clause: “WHERE” clause “HAVING” clause “WHERE” clause is...Entity integrity: When creating a table, the primary key in the table must be assured and the...Information system: A system that is designed in transforming the data into information is called as...Order in which the design of the database made for the ABC car service and repair Centers: The...Explanation of the given statement: The given statement is “A transaction is a logical unit of...Number of database request identified for an inventory update for both PRODUCT and PART: The number...SQL performance tuning: SQL performance tuning is a process that takes place at the client side. The...Evolution from centralized Database Management System (DBMS) to distributed Database Management...Business Intelligence (BI): Business intelligence defines applications, technologies and practices...Chapter 14, Problem 1RQDatabase Connectivity and uses: Database connectivity includes the application programs used for...Difference between Data and Information: Data Information Data is a raw material to an end user....
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