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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
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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 15 – Timestamp Enhancements

  1. A is correct. The client time zone is obtained by SESSIONTIMEZONE. The server time zone can be obtained by the DBTIMEZONE function of the STANDARD package. MYTIMEZONE and UTC_SHIFT do not exist in that package.
  2. D is correct. The time zone can be stated using the valid name representation or with numerical values using time zone hour (TZH) and minute (TZM).
  3. C is correct. The DATE value is transformed into a TIMESTAMP reference and extended by the time zone reference, forming the TIMESTAMP with time zone data type.
  4. B is correct. The FROM_TZ function takes two parameters. TIMESTAMP is a constructor, and At time zone is a TIMESTAMP clause extension, not a function. The only valid option is NEW_TIME.
  5. D is correct. The valid UTC normalization for the TIMESTAMP value is done by the SYS_EXTRACT_UTC function.
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Developing Robust Date and Time Oriented Applications in Oracle Cloud
Published in: May 2023Publisher: PacktISBN-13: 9781804611869

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