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It has multiple parts (year, month, day, hour, and so on), and there are many rules about what constitutes a valid date.
This article gives you all the information you need in order to begin working with dates in your PL/SQL programs.
Bad Things Happen—Even in Good Programs Now that you have a solid foundation in working with key datatypes such as strings, numbers, and dates, I will switch focus in the next article of this series to an in-depth introduction to exceptions: how they can be raised and how you can handle them. Each PL/SQL 101 article offers a quiz to test your knowledge of the information provided in the article.
The returned date has the same time component as the date.He is also the first recipient of ODTUG's Lifetime Achievement Award (2009).Hello, I have SQL for Postgre SQL with following inside: generate_series('2013-03-04T.000 ', '2013-03-10T.000 ', 'PT15M') parameters are (date start, date end, interval in some ISO specific format PT15M (means 15 minutes)); and I need to write similar SQL for Oracle DB with support of this ISO format (interval can be changed, not always 15 minutes).Answers to the Challenge Here are the answers to the PL/SQL Challenge questions in last issue’s “Working with Numbers in PL/SQL” article: Answer 1: The plch_ceil_and_floor function always returns either 1 or 0: 0 if the number passed to the function is an integer, 1 otherwise.
Answer 2: (a) and (b) are correct; (c) is incorrect.Dates, Time Stamps, and Intervals in PL/SQL Most applications require the storage and manipulation of dates and times.