DATEPART Function - Sybase ASE to MariaDB Migration

In Sybase ASE you can use DATEPART function to extract the integer part of the specified unit (a date part such as year, month, day etc.) from a datetime value.

In MariaDB there is no single function with the same functionality, and you have to use YEAR(), MONTH(), DAY() and other functions to extract the required datetime units (date parts).

Sybase ASE:

  -- Get the name of week day
  SELECT DATEPART(dw, '2017-12-17')
  # 1

MariaDB:

  -- Get the name of week day
  SELECT DAYOFWEEK('2017-12-17')
  # 1

Mapping Sybase ASE DATEPART Units to MariaDB

You can use SQLines SQL Converter to convert Sybase ASE DATEPART function to MariaDB that maps the units to the appropriate datetime functions in MariaDB:

Sybase ASE			MariaDB	Output Example
yy	year	DATEPART(yy, GETDATE())	YEAR(NOW())	2017
qq	quarter	DATEPART(qq, GETDATE())	QUARTER(NOW())	4
mm	month	DATEPART(mm, GETDATE())	MONTH(NOW())	12
wk	week	DATEPART(wk, GETDATE())	WEEK(NOW())	51
dd	day	DATEPART(dd, GETDATE())	DAY(NOW())	17
dy	dayofyear	DATEPART(dy, GETDATE())	DAYOFYEAR(NOW())	351
dw	weekday	DATEPART(dw, GETDATE())	DAYOFWEEK(NOW())	1
hh	hour	DATEPART(hh, GETDATE())	HOUR(NOW())	19
mi	minute	DATEPART(mi, GETDATE())	MINUTE(NOW())	22
ss	second	DATEPART(ss, GETDATE())	SECOND(NOW())	8
ms	millisecond	DATEPART(ms, GETDATE())	MICROSECOND(NOW(3))/1000	396
us	microsecond	DATEPART(us, CURRENT_BIGTIME())	MICROSECOND(NOW(6))	324091

For more information, see:

SQLines SQL Converter

SQLines Data

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DATEPART Function - Sybase ASE to MariaDB Migration

Mapping Sybase ASE DATEPART Units to MariaDB