![]() ![]() They were chosen for being intuitive and unique to remember. The values listed are not the complete list. The table below lists the different date parts and values in alphabetic order. The value for the datepart argument is specified without quotes and in lowercase. This could be day, month, year and so on. It is a single lowercase word ( datepart) used to denote a part of a date. So, let’s clear things up.ĭate part is an argument used in Redshift date functions. Though simple, its syntax and usage can get confusing. Here we discuss the definition, How does Redshift DateDiff works, and examples with code implementation.You will see datepart mentioned in more than a few Redshift date functions. Here above syntax is used to find the difference between specified column dates. SELECT DATEDIFF (‘datepart’,, ) FROM TABLE_NAME Here above syntax is used to find the difference between the specified dates wised columns in a table. Remember the syntax for the DateDiff as below: –.The datepart is nothing but the date or time value I.e., year, month, day, hour, minute, second, millisecond, or microsecond. The DateDiff function used in redshift has three arguments in it, we specify the dates for which we want to find the difference.The usage of the datediff is similar in all the databases except for the parameters that we use in the syntax. Redshift DateDiff is used to find the difference between the specified dates.Things that need to be remembered by the above session are as below: The above query gets the duration of time given to the customer DUE_DATE – INITIATION_DATE. *, datediff( 'MONTH',DUE_DATE, INITIATION_DATE We can get the duration of due time that has been given to the customers. Now all the record has a positive value which means all the customer has breached the due date. Here the values that are negative values means that customer has breached the due date. *, datediff('day', DUE_DATE, CURRENT_DATE) AS BREACHED_COUNT_OF_DAYS In our case, all the customers have breached the due date. ![]() If the values are in negative values, then it shows that the customer has already breached the due with the mentioned days. The values that are positive represent that the customer still has those many days to breach the due. ![]() Here we are planning to get the customers who have breached the due_date. Now let us perform the DateDiff function on the mentioned table: – Let us insert the below rows into the above table: – This can be calculated as Current date – DUE_DATE. The above table consists of the data about the customers whose due date is pending. Now let us see how the DateDiff works on the table columns. Here the output of the DateDiff has been specified in the day difference between the dates. Here first argument is ‘Day’ which means datediff will calculate the day difference between the current date and the mentioned date and returns the output. Here we have mentioned the in-built function in the statement. Here now let us use the CURENT_DATE Function and try to get the Day difference.ĭATEDIFF('day', current_date, ' 11:00:00' Using CURRENT_DATE function in the DATEDIFF () Function It returns -732 hours has the difference between the above two dates. The starting date argument datepart has been mentioned as the hour by which the datediff function will calculate the hour difference between those two dates. Here in the above query, it returns the hour difference between the two mentioned date. It returns -30 even in the above DateDiff statement. The starting datepart argument based on which the difference is calculated. Here in the above query, it returns the day difference between the two dates. ![]()
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