In MariaDB, you can use the DATE_FORMAT() function to return various date parts from a date. One of the things you can return is the short month name. For example Nov or Dec (instead of November or December).
dates
How to Add the Meridiem Indicator (AM/PM) to a Time Value in Oracle
When using the TO_CHAR() function to format a datetime value in Oracle Database, you can add the meridiem indicator (AM/PM) by simply adding either AM or PM to your format model.
Oracle then displays the appropriate meridiem indicator, depending on whether the time value is AM or PM.
You can provide it in any uppercase or lowercase, and with or without dots (e.g. AM, A.M. am, a.m, etc). Oracle will then display the meridiem indicator as specified.
5 Functions to Extract the Week Number from a Date in MariaDB
Below are 5 functions that enable you to return the week number from a date in MariaDB. Four return just the week, and one returns both the week and year combined.
2 Functions that Return the Month from a Date in Oracle
Below are two functions that can be used to extract the month from a date in Oracle Database.
Find Out Which Quarter a Date Belongs to in Oracle
When using the TO_CHAR(datetime) function in Oracle Database, you can use the Q format element to return the quarter that a given date belongs to.
How to Get the Day Name from a Date in Oracle
With Oracle Database, we can use the TO_CHAR(datetime) function to return a datetime value, formatted in a way that we specify.
We can use this function to return the day name from a date (as well as any other parts of the datetime value).
How to Calculate Age in MariaDB
In MariaDB, you can use the TIMESTAMPDIFF() function to calculate a person’s age (or the age of anything for that matter).
TIMESTAMPDIFF() is a built-in date and time function that returns the difference between two date or datetime expressions. Passing YEAR as the first argument, date of birth as the second argument, and the current date as the third, will return the age in years.
2 Ways to Get the Day from a Date in Oracle
Below are two functions that can be used to return the day from a date in Oracle Database.
2 Functions to Get the Year from a Date in Oracle
Below are two functions that can be used to extract the year from a date in Oracle Database.
How to Check the Date Format of your Oracle Session
When working with functions that return dates, Oracle Database returns these dates based on the value of the NLS_DATE_FORMAT parameter.
There is also an NLS_TIMESTAMP_FORMAT parameter and an NLS_TIMESTAMP_TZ_FORMAT parameter, both of which have a datetime format mask that can be specified separately.
All of these parameters have their default values derived from the NLS_TERRITORY parameter (which by default, is operating system-dependent).