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You're reading from  Developing Robust Date and Time Oriented Applications in Oracle Cloud

Product typeBook
Published inMay 2023
PublisherPackt
ISBN-139781804611869
Edition1st Edition
Tools
Oracle Database
Concepts
Databases
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Author (1)
Michal Kvet
Michal Kvet
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Michal Kvet

Michal Kvet is a researcher, educator, and database expert at the University of Žilina in Slovakia. His primary focus areas are databases, analytics, performance, and cloud computing. He works closely with Oracle and Oracle Academy. He is the co-author of multiple textbooks (a SQL and PL/SQL cookbook, a book on APEX application development, a book on temporal databases, and a MySQL cookbook), coordinates multiple Erasmus+ projects and co-organizes several research conferences and database workshops. Besides this, he supervises engineering projects and bachelor's, master's, and doctoral theses. Over the years, his research has been associated with date and time management and temporal databases. He has Oracle's SQL, PL/SQL, Cloud, Analytics, and Administration certifications. His core knowledge of temporality is provided to you in this book.
Read more about Michal Kvet

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Chapter 10 – Interval Representation and Type Relationships

  1. C is correct. The left border remains the same. The right border is extended by one day to March 1 because 2022 is not a leap year.
  2. C is correct. The not_fills relationship type does not exist. The occupies type characterizes the common start or end point or the whole coverage. The excludes category covers before and meets types, which do not overlap.
  3. C is correct. If there are no undefined states, each beginning point of the validity ends the validity of the direct predecessor. Thus, no gaps can be present.
  4. B is correct. The PERIOD definition takes the name specified after the FOR keyword by extending its name with _START or _END. Therefore, if it is specified as PERIOD FOR VALIDITY, then the name of the PERIOD border attributes in this case would be VALIDITY_START or VALIDITY_END.
  5. A is correct. In principle, there are three options – ALL, CURRENT, and ASOF, extended by the QUERY_TIME parameter...
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Developing Robust Date and Time Oriented Applications in Oracle Cloud
Published in: May 2023Publisher: PacktISBN-13: 9781804611869
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Michal Kvet

Michal Kvet is a researcher, educator, and database expert at the University of Žilina in Slovakia. His primary focus areas are databases, analytics, performance, and cloud computing. He works closely with Oracle and Oracle Academy. He is the co-author of multiple textbooks (a SQL and PL/SQL cookbook, a book on APEX application development, a book on temporal databases, and a MySQL cookbook), coordinates multiple Erasmus+ projects and co-organizes several research conferences and database workshops. Besides this, he supervises engineering projects and bachelor's, master's, and doctoral theses. Over the years, his research has been associated with date and time management and temporal databases. He has Oracle's SQL, PL/SQL, Cloud, Analytics, and Administration certifications. His core knowledge of temporality is provided to you in this book.
Read more about Michal Kvet

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