4 Ways to Separate Hours, Minutes, and Seconds from a Time Value in MariaDB

MariaDB has several functions that enable you to extract various date and time parts from date/time values. You can use these to separate each date/time component into its own column if required.

Below are four ways to extract the hours, minutes, and seconds from a time value in MariaDB. As a bonus, we’ll also include microseconds.

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MariaDB Composite Date & Time Units Explained

MariaDB includes a bunch of date and time units that you can use when working with date and time values. For example, MONTH is a unit, and HOUR is another unit.

Some units are composite units. Composite units are when two units get combined into one. The naming convention is that each unit name is separated by an underscore. For example, MINUTE_SECOND is for minutes and seconds.

Below are some examples that demonstrate how composite units work in MariaDB.

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How to Add the AD/BC Indicator to a Date in Oracle

When using the TO_CHAR() function to format a datetime value in Oracle Database, you can add the AD/BC indicator by simply adding either AD or BC to your format model.

Oracle then displays the appropriate indicator, depending on whether the date value is AD or BC.

You can provide it in any uppercase or lowercase, and with or without dots (e.g. AD, A.D. ad, a.d, etc). Oracle will then display the indicator as specified.

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