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b) Consider the relational table PARTSUPP of the TPCHR sample database. Find SELECT statements that will use the index in the ways specified in the questions (i) to (iv) below. The values used to create the query such that

b) Consider the relational table PARTSUPP of the TPCHR sample database. Find SELECT statements that will use the index in the ways specified in the questions (i) to (iv) below. The values used to create the query such that

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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b) Consider the relational table PARTSUPP of the TPCHR sample database. Find SELECT statements that will use the index in the ways specified in the questions (i) to (iv) below. The values used to create the query such that the queries can meet the specified criteria is up to you, but the values must be sensible. i. ii. iii. iv. Execution of the first SELECT statement must traverse the index vertically then horizontally and it must not access the relational table PARTSUPP. Execution of the second SELECT statement must traverse the index vertically then horizontally and it must access the relational table PARTSUPP. Execution of the third SELECT statement must traverse the leaf level of the index horizontally and it must not access the relational table PARTSUPP. Execution of the fourth SELECT statement must traverse the leaf level of the index horizontally and it must access the relational table PARTSUPP. Deliverables Submit your spooled file solution 1b.lst (or solution 1b.pdf) that contains your SQL script and the output from the execution of the script. The report must have no errors related to the implementation of your task and it must list all PL/SQL and SQL statements processed. Remember to set ECHO option of SQL*Plus to ON!
Transcribed Image Text:b) Consider the relational table PARTSUPP of the TPCHR sample database. Find SELECT statements that will use the index in the ways specified in the questions (i) to (iv) below. The values used to create the query such that the queries can meet the specified criteria is up to you, but the values must be sensible. i. ii. iii. iv. Execution of the first SELECT statement must traverse the index vertically then horizontally and it must not access the relational table PARTSUPP. Execution of the second SELECT statement must traverse the index vertically then horizontally and it must access the relational table PARTSUPP. Execution of the third SELECT statement must traverse the leaf level of the index horizontally and it must not access the relational table PARTSUPP. Execution of the fourth SELECT statement must traverse the leaf level of the index horizontally and it must access the relational table PARTSUPP. Deliverables Submit your spooled file solution 1b.lst (or solution 1b.pdf) that contains your SQL script and the output from the execution of the script. The report must have no errors related to the implementation of your task and it must list all PL/SQL and SQL statements processed. Remember to set ECHO option of SQL*Plus to ON!
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