QUESTION 18 The maximum value that can be stored by defining an attribute as NUMBER (5,3) is O a. 99.999 O b. 9.999 Oc. 99999.999 O d. 55.333 QUESTION 19 ... will change department ID 20 of employee table to 15. O a. UPDATE Employee SET Department ID = 15 WHERE Department ID = 20; !! UPDATE Employee SET Department ID = 20 WHERE Department ID = 15; Ob. Oc. UPDATE Employee SET Department_ID = 20: Od UPDATE Employee SET Department_ID = 15

QUESTION 18 The maximum value that can be stored by defining an attribute as NUMBER (5,3) is O a. 99.999 O b. 9.999 Oc. 99999.999 O d. 55.333 QUESTION 19 ... will change department ID 20 of employee table to 15. O a. UPDATE Employee SET Department ID = 15 WHERE Department ID = 20; !! UPDATE Employee SET Department ID = 20 WHERE Department ID = 15; Ob. Oc. UPDATE Employee SET Department_ID = 20: Od UPDATE Employee SET Department_ID = 15

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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Concept explainers

Fundamentals of Datawarehouse

A data warehouse is a data repository which is used to store large quantities of historical data that are mostly used for creating reports that help businesses to identify their weaknesses and strengths. For example, demographics data about people of a region can help businesses identify the needs and preferences of the region’s population. A data warehouse acts as a central storage for storing data that comes from one or more heterogenous sources. It also consists of data which can be old and of historical value. One of the most important applications of this type of system is that it is used for supporting business intelligence and data analytics applications.

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