(1 row) Benefits of Extract Function in Amazon Redshift (1 row) Redshift extract microseconds from date: select extract(microsecond from now()) (1 row) Amazon Redshift extract milliseconds from date: select extract(millisecond from now()) (1 row) Redshift extract seconds from date: select extract(second from now()) (1 row) Redshift extract hours from date: select extract(hour from now()) (1 row) Amazon Redshift extract day of the year from date: select extract(doy from now()) (1 row) Redshift extract day of the week from date: select extract(dow from now()) (1 row) Redshift extract day from date: select extract(day from now()) (1 row) Amazon Redshift extract week from date: select extract(week from now()) (1 row) Redshift extract month from date: select extract(month from now()) (1 row) Redshift extract quarter from date: select extract(quarter from now()) (1 row) AWS Redshift extract year from date: select extract(year from now()) (1 row) Redshift extract decade from date: select extract(decade from now()) (1 row) Redshift extract century from date: select extract(century from now())
(1 row) Amazon Redshift extract millennium from date: select extract(millennium from now()) Redshift extract epoch from date: select extract(epoch from now())
#Redshift datepart month how to
Amazon Redshift Extract Function Examples Redshift Date Extract Examplesįollowing are some of the examples on how to use extract function. Note that, date_part options are same as option available in Redshift Date_Trunc function. Microsec, microsecs, microsecond, usecond, useconds, us, usec, usecs Ms, msec, msecs, msecond, mseconds, millisec, millisecs, millisecon Returns an integer from 0–6, starting with Sunday. These values are sometimes referred to as a units in extract function: Datepart or Timepartĭayofweek, dow, dw, weekday. Redshift Extract Function Syntaxīelow is the Extract function syntax that is available postgreSQL: EXTRACT ( datepart FROM ) Redshift Extract Function Datepart or Timepart and Abbreviationsīelow table represents the descriptions of the different datepart or timepart used in extract function. Both function provides similar functionality. The extract function is synonymous to DATE_PART function. The EXTRACT function returns a date part, such as a day, month, or year, from a time stamp value or expression. Likewise, there are so many applications that use extract function whenever you require. For example, extract time part of the current datetime and append it to file name to create unique file name. You may have requirement to extract part of timestamp values and pass it to an calling application. The extract function is very useful when you are working with different heterogeneous data sources. Benefits of Extract Function in Amazon Redshift.Amazon Redshift Extract Function Examples.Redshift Extract Function Datepart or Timepart and Abbreviations.
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