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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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Summary

In this chapter, you got familiar with the existing functionalities in DBS Oracle, mostly related to day and month granularity. We emphasized the ADD_MONTHS and MONTH_BETWEEN functions for dealing with month precision.

Mathematical arithmetic applies a day precision shift. Therefore, this chapter referenced the LAST_DAY function for providing the last day of the month and the NEXT_DAY function, which provides the closest larger DATE value according to the specified weekday. The weekday value is set by the string abbreviation; alternatively, the serial number of the day within the week is used. However, as we have shown, these values depend on the region, language, or territory. Therefore, our own implementation for getting the next day was proposed and discussed.

In addition, we learned the principles of DATE value rounding and truncating. Then, the PERSONAL_ID value was introduced, which can be used as the primary key for a person table, providing composite information...

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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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