Errata
Pascal Errata  
PRACTICAL ISSUES IN DATABASE MANAGEMENT

Fabian Pascal
© 2001, Addison-Wesley

Errata

PAGE LOCATION/ITEM CORRECTION
51, 54 constraint expression NOT (r2.res# <> r1.res# 

AND r2.room = r1.room 

AND r2.arr_date < r1.dpt_date 

AND r2.dpt_date > r1.arr_date)

  3rd sentence of Note  ARR_DATE should be DPT_DATE
53 last two lines base -- is all domain, column, table and

database constraints ANDed together 

53-54 sum of constraints expression all instances of OR should be AND
98 last paragraph, 2nd sentence Figure 4.1 should be 4.3 

Figure 4.4 should be 4.1

137 bulleted list 
  • An employee can be assigned to any specified project and all specified activities 
  • An employee can be assigned to any number of projects and any number of activities. 
  • Projects and activities are independent of each other 
  • A given project or activity can have any number of employees assigned to it 
138

195

table A

table ASSIGNS

139 last paragraph before 5.2.2.3 Figure 5.7 should be 5.8
140

197

table A

table ASSIGNS

153 Table COM_EMP last column name should be COMMISSION
179 last SQL statement      SELECT cp#, 'P1' AS pp#
FROM links
CONNECT BY PRIOR cp# = pp#
START with pp# =   'P1'
189 Figure 8.3
196 Diagram after last paragraph delete one EMP#
222 3rd line after Note  'less than q' should be 'less than or equal

to q'

  SQL query & calculus expression  '< q' should be '> q'
232 line 9 'redundancy' should be 'missing values'

May 24th, 2002