October 2002
Beginner
864 pages
18h 41m
English
Content preview from Sams Teach Yourself SQL in 21 Days, Fourth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Applying Date Functions to the Query
Date functions are available in SQL, varying on each specific implementation. The syntax may vary, but the overall concept and functionality are the same. Date functions, similar to character string functions, are used to manipulate the representation of date and time data. Date functions are often used to format the output of dates and time in a more presentable format, to compare date values with one another, to compute intervals between dates, and so on.
The Current Date
You may have already raised the question: How do I get the current date from the database? The need to retrieve the current date from the database may originate from several situations, but the current date is normally returned either to ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.