# What database statistics measurements are typical of tables, indexes, and resources?

### Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

Chapter
Section

### Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 11, Problem 6RQ
Textbook Problem
43 views

## What database statistics measurements are typical of tables, indexes, and resources?

Program Plan Intro

Database statistics:

• The objects of the database include tables, indexes, number of processor used, speed of the processor and spaces that are available temporary are being measured for the resources.
• Gathering this type of information in the form of statistics can provide a clear portrait about the characteristics of the DBMS.
• Gathering database statistics plays a major role in the query optimization.
• Gathering database statistics is important because they are used in obtaining the critical decision in improving the efficiency of the query processing.

### Explanation of Solution

Database statistics measurements typical of table:

The below are the typical measurements of the table:

• Total number of rows.
• Number of disk blocks used.
• Length of the row.
• Number of columns that every row contains.
• Number of distinct values present in the column.
• Maximum value of the column.
• Minimum value of the column.
• Indexing details about the column.

Database statistics measurements typical of indexes:

The below are the typical measurements of the indexes:

• Number of columns present with the index key...

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