Dive into detailed tutorials on Oracle Datetime Functions and learn how to handle dates and times effectively in SQL. Understand functions like SYSDATE, ADD_MONTHS, MONTHS_BETWEEN, LAST_DAY, and NEXT_DAY to perform date calculations, formatting, and comparisons for accurate data management.
The FLOOR function in Oracle SQL can be used on numbers, but it also has a version for DATE and TIMESTAMP values. For dates, FLOOR "rounds down" the datetime to the unit you specify. Here is the most important thing…
The EXTRACT function in Oracle SQL is a powerful tool for "pulling out" a single, specific part from a date or timestamp. Want just the YEAR from a DATE? Or the HOUR from a TIMESTAMP? EXTRACT is the function you…
The DBTIMEZONE function in Oracle SQL is a simple function that returns the time zone setting of the database itself. This is different from SESSIONTIMEZONE, which returns the time zone of your current user session. DBTIMEZONE shows the default time…
The CURRENT_TIMESTAMP function in Oracle SQL returns the exact current date, time, and time zone of your SQL session. Its key feature is that it returns a TIMESTAMP WITH TIME ZONE data type. This means the output includes not just…
The CURRENT_DATE function in Oracle SQL is a simple function that returns the current date and time based on your session's time zone. A common point of confusion is its name. Despite being called CURRENT_DATE, the DATE data type in…
The CEIL function in Oracle SQL can be used on numbers, but it also has a powerful version for DATE and TIMESTAMP values. In this context, CEIL "rounds up" a datetime value to the next specified unit of time. This…
Working with dates in SQL can be tricky, especially when you need to add or subtract months. Oracle provides a powerful and straightforward function for this exact task: ADD_MONTHS. This simple tutorial will show you exactly how to use it,…