CONVERT. e. This page is intended to be a quick reference of commonly-used and/or useful queries in MariaDB. Note that unit values can be different in SQL Server DATEDIFF and MySQL TIMESTAMPDIFF. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Starting with your example query, something like this would probably work: SELECT foo FROM table t LEFT JOIN frequencies f USING (frequency_id) WHERE MOD ( (CASE. Mysql 5. 0. W3Schools is optimized for learning, testing, and training. g. millisecond usa a hora, minuto, segundo e os três primeiros dígitos dos segundos fracionários. Enjoy our free tutorials like millions of other internet users since 1999. Explore our selection of references covering all popular coding languages. Instructions to Log In or Reset your MyEd Student Account Student Log in . The time zone data can be time zone offset e. Thanks !! SELECT TIMESTAMPDIFF(HOUR, UTC_TIMESTAMP(), NOW()); If the server's timezone is PST this will return -8. Website Content Managed by Ministry of Labour & Employment. Check the line when timestampdiff (minute, created_on, current_timestamp) > 3 AND < 60 then " minutes ago" to be correct you should change to when timestampdiff (minute, created_on, current_timestamp) > 3 AND timestampdiff (minute, created_on, current_timestamp) < 60 then " minutes ago". 1. because the diff from 08/18 to 12/08 is 3 until the. If you want to diff an earlier start time against a later end time, then the former should appear before the latter in the call to TIMESTAMPDIFF. Here's a w3schools link on the DATEDIFF () function. Yearly Page Visits. However, if you want to make your website dynamic (manage files and databases, add contact forms, control user-access, etc. Where a time stamp is a numerical value representing the number of milliseconds from '1970-01-01 00:00:01' UTC (epoch) to the specified time. 使用 timestampdiff 函数计算差值. If start is greater than end the result is negative. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Description. 139 2 11. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. For example, if you wanted to calculate the difference between two timestamps in seconds, you would use the following query: SELECT TIMESTAMPDIFF (SECOND, start_timestamp. For up to date solution see jurkas' answer above. To get it, we can use 'floor' to the calculated no of years. Enjoy our free tutorials like millions of other internet users since 1999. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. numeric-expression. On the other hand, DATEDIFF () doesn’t allow you to specify a unit. Introduction to Oracle TIMESTAMP WITH TIME ZONE. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. ). Beginning with MySQL 8. Enjoy our free tutorials like millions of other internet users since 1999. col ("TimeStampHigh"), "HH:mm:ss"). Edit the SQL Statement, and click "Run SQL" to see the result. TIMESTAMPDIFF () does not support dynamic units like that. When fractions has a value of 500 and precision has a value of 3, then the value of fractions represents 500/1000 of a second. References. 25. Get your own SQL server SQL Statement: x . Free Tutorials. ELAPSED_TIME is sometimes calculated as 0 when the difference is in microseconds. Simple but elegant. </p>. The <input> tag specifies an input field where the user can enter data. Share. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Enjoy our free tutorials like millions of other internet users since 1999. Enjoy our free tutorials like millions of other internet users since 1999. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. 3 Answers. Try adding this expression in. However, we also cover newer versions; Bootstrap 4 (released 2018) and Bootstrap 5 (released 2021). References. functions. Join our online community and get started today! 70 Million +. Here is the problem with your query: SELECT id, booked_date, "diff",. The function is used in date and time calculations. Note that truncation is not the same as extraction. +1 for to the point the stored timestamp is less than x minutes. All you need is to execute the code below and then use the function. There are three options provided to you to set the size of the text that affects the readability. The unit for the result (an integer) is given by the unit argument. The date to compare to. Enjoy our free tutorials like millions of other internet users since 1999. Not supported in HTML5. W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. Example 3 – A ‘datetime’ Example. Viewed 2k times. What this allows you to do is pass in two TIMESTAMP or DATETIME values (or even DATE as MySQL will auto-convert) as well as the unit of time you want to base your difference on. MySQL comes with the following data types for storing a date or a date/time value in the database: DATE - format YYYY-MM-DD. TIMESTAMPDIFF (unit,datetime_expr1,datetime_expr2) where unit argument, which should be one of the following values: MICROSECOND (microseconds), SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, or YEAR. There are five data types in MySQL. Under Secretary (eSHRAM Portal) Ministry of Labour & Employment. The unit for the. So we could modify the previous example so that TIMESTAMPDIFF. W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. I am struggling making sense of the TIMESTAMPDIFF () function using MYsql. Helpdesk No. Possible values are year, quarter, month, or week (or any of their supported variations). Explore our selection of references covering all popular coding languages. TIMESTAMPADD () This function adds an interval to a datetime expression. Enjoy our free tutorials like millions of other internet users since 1999. SQL is a standard language for storing, manipulating and retrieving data in databases. The TIMESTAMPDIFF function returns the result of begin - end, where begin and end are DATE or DATETIME expressions. The Try-MySQL Editor at w3schools. SELECT (UNIX_TIMESTAMP(TIMEDIFF(endDate, startDate))/(60*60)) AS hours_difference FROM tasks returns 0. SELECT TO_CHAR (TIMESTAMPDIFF (1,CHAR (endtime- starttime))) AS "ms" FROM TABLE. Returns the name of the current database. 在 oracle 数据库中，我们可以使用 timestampdiff 函数来计算两个时间戳之间的差值。timestampdiff 函数有三个参数：第一个参数指定时间单位，第二个参数指定结束时间戳，第三个参数指定开始时间戳。以下是 timestampdiff 函数的示例用法：Definition and Usage. If you don't know HTML, we suggest that you read our HTML Tutorial from scratch. Specifies the day of the week. If the returned value is 5 , the. You will be catching up in no time! This tutorial gives an overview of the AWS cloud. . The function is valuable for filtering records or data based on time criteria, such as selecting records within a specific time range. TIMESTAMPDIFF(unit,datetime_expr1,datetime_expr2) Description. . For example, the following statement changes the current delimiter to //: DELIMITER // Code language: SQL (Structured Query Language) (sql)W3Schools offers free online tutorials, references and exercises in all the major languages of the web. MAZ. CONVERT_TZ () In MySQL the CONVERT_TZ () returns a resulting value after converting a datetime value from a time zone specified as. Now I want to calculate the milliseconds between these two dates. 3. date_or_time_expr (Required) must be a date or timestamp expression. Explore our selection of references covering all popular coding languages. References. Explore our selection of references covering all popular coding languages. It is highly recommended to use to_date () instead. Its arguments are the unit in which you want the result expressed, and the two dates for. The specified NUMERIC is an internal timestamp value representing seconds since “1970-01-01 00:00:00” UTC, such as produced by the UNIX_TIMESTAMP function. Lompati ke konten utama. In addition to a server, you get a SQL Database where you can store and access your data. You may use TIMESTAMPDIFF as the answer below shows, but you should avoid storing your timestamps as strings in the database. Follow edited Mar 22, 2022 at 0:16. Java is an object oriented language and some concepts may be new. 5 hours). The WHERE part goes after the FROM part. First, it attempts to find a match for the %d format specifier, which is a day of the month (01…31), in the input string. 引数は、結果を表す単位と、差異を取る 2. W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. Learn More. In PostgreSQL, you can take the difference in years, multiply by 12 and add. Enjoy our free tutorials like millions of other internet users since 1999. References. I know this is not obvious from the code I posted, but I wanted to keep my question as simple as I could, knowing that once I´d be able to get a result with TIMESTAMPDIFF, I´d also be able to proceed with the query. Barbaros Özhan Barbaros Özhan. MySQL FROM_UNIXTIME () returns a date /datetime from a version of unix_timestamp. : you're comparing dates with timestamps, and not whole days), you can simply convert two date or timestamp strings in the format 'YYYY-MM-DD HH:MM:SS' (or specify your string date format explicitly) using unix_timestamp(), and then subtract them from each other to get the difference in seconds. at w3schools. firstdayofweek. Here the date1 is greater than date2, so the return value is positive. W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. SQL Server : -- Get difference in days SELECT DATEDIFF ( dd, '2022-09-01', '2022-09-05'); # 4. JS can do: Run HTML Slideshows Include (Import) HTML in HTML Sort the Content of any HTML Element Filter the Content of any HTML Element Display JavaScript Objects in HTML Read Data from Web Servers (Http Request) Hide or Show any HTML Element Add or Remove Classes on. It's easy to use and doesn't require any setup. If you're not bothered about dates before 1970, or millisecond precision, just do: -- SQL Server SELECT DATEDIFF (s, '1970-01-01 00:00:00', DateField) Almost as simple as MySQL's built-in function: -- MySQL SELECT UNIX_TIMESTAMP (DateField); Other languages (Oracle, PostgreSQL, etc): How to get the current epoch time. 03. Examples might be simplified to improve reading and basic understanding. my approach : set unit as SECOND and then use SEC_TO_TIME. numeric-expression. Free Tutorials. Here is explanation of equivalent JPA Criteria Query of. 159 1 1 silver badge 3 3 bronze badges. SQL. Now, let us have a look at how we can implement the TIMESTAMPDIFF () function to calculate the duration or internal that is the difference between two TIMESTAMP values. Browser ini sudah tidak didukung. In this article. answered Sep 27, 2011 at 19:42. DATEDIFF accepts either. In addition to a server, you get a SQL Database where you can store and access your data. Follow. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. 03. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Use TIMESTAMPDIFF for exact number of hours : SELECT b. When fractions has a value of 50 and precision has a value of 2, then the value of fractions represents 50/100 of a second. , with an example. My two time stamps are as(. The schema is SYSIBM. -1. You need to pass in the two date/datetime values, as. The TIMESTAMPDIFF function allows its arguments to have mixed types e. With two arguments, the sum of the arguments. Free Tutorials. MySQL interval values are used mainly for date and time calculations. Note: time1 and time2 should be in the same format, and the. Enjoy our free tutorials like millions of other internet users since 1999. SELECT TIMESTAMPDIFF(HOUR, endDate, startDate) AS hours_different FROM tasks Only returns hours while i also need minutes to be converted. Getting the number of days between two specified date values where the date is specified in the format of YYYY-MM-DD. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. SyntaxWhat Can W3. The unit for the integer result and the interval should be one of the following: SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, or YEAR. 2. Sometimes, there is a need to halt the flow of the program so that several other executions can take place or simply due to the utility required. DATETIME: used for values that contain a date and time. length. Explore our selection of references covering all popular coding languages. 7 Date and Time Functions. SELECT * FROM table WHERE TIMESTAMPDIFF (MINUTE,timestamp,NOW ()) AS thisisit. You can use something like: DATEDIFF (TIMESTAMP (NOW ()), TIMESTAMP ('2011-12-13 14:00:00')) AS DiffDate. The DATE type is used for values with a date part but no time part. 00. Add a comment. 1 = vbSunday - Sunday (default) 2 = vbMonday - Monday. com. Table 9. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Free Tutorials. use TIMESTAMPDIFF. Inspect an HTML Element: Right-click on an element (or a blank area), and choose "Inspect" to see what elements are made up of (you will see both the HTML and the CSS). microsecond usa a hora, minuto, segundo e os primeiros seis dígitos dos segundos. Run SQL » Result: The Try-MySQL Editor at w3schools. This function takes the difference between two dates and shows it in a date format yyyy-mm-dd. PostgreSQL provides a datediff function to users. In PostgreSQL, you can take the difference in years, multiply by 12 and add. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. ). It's easy to use and doesn't require any setup. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. The numbers you can use are for the following time intervals: 1 = Microseconds. It only returns the result in days. 2014 will change to age: 15 Here I want to show the date of the user:Return information about users and roles. DATE () Extract the date part of a date or datetime expression. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. We have been helping people learn to code for over 23 years. Returns the interval from datetime_expr2 to datetime_expr1. TIMEDIFF. 33 shows the available functions for date/time value processing, with details appearing in the following subsections. 28, the return type of this function and of the SUBTIME () function is determined as follows: W3Schools offers free online tutorials, references and exercises in all the major languages of the web. To calculate the total time difference in seconds, use the total_seconds () method on the timedelta object time_diff. The MySQL TIMESTAMPDIFF() function is used to find the difference between two date or datetime expressions. If there is no ELSE part and no conditions are true, it returns NULL. Consider SQL Server function to calculate the difference between 2 dates in months: SQL Server : -- Difference between Oct 02, 2011 and Jan 01, 2012 in months SELECT DATEDIFF ( month, '2011-10-02', '2012-01-01') ; -- Result: 3. 0. `Start_Date`, b. References. It's a powerful tool for performing date and time calculations, allowing you to manipulate temporal data in various ways. ADDTIME () In MySQL the ADDTIME () returns a time or datetime after adding a time value with a time or datetime. Differences between DATEDIFF(), TIMEDIFF() and TIMESTAMPDIFF() In addition to the DATEDIFF() function, there are two similar functions: TIMEDIFF() and TIMESTAMPDIFF(). 3. Improve this answer. UNIX_TIMESTAMP () : This function in MySQL helps to return a Unix timestamp. Then, the outer query uses the LEAD () function to return the following month sales for each month. Follow edited May 7, 2017 at 6:54. W3Schools Spaces is a website-building tool that enables you to create and share your website. Take a look at the code below - notice the 1 millisecond difference in. Note that without the timepart, it will use 00:00:00 as the timepart. Tipe data tanggal ( DATE) merupakan salah satu tipe data yang cukup sulit digunakan. TIMESTAMPDIFF (DAY, '2011-12-10', '2011-12-20') will return 10. However, two of them only store part of a date: TIME stores the time, and YEAR stores the year. Share. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. The different input types are as follows: <input type="button">. Enjoy our free tutorials like millions of other internet users since 1999. SELECT TIMESTAMPDIFF (MINUTE,'2022-02-01 10:30:27','2022-02-01 10:45:27') AS 'Difference in Minutes'; W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Free Tutorials. There are three options provided to you to set the size of the text that affects the readability. References. expresión-numérica. 4. ), the start timestamp, and the end timestamp. 4. 4. rpad_string. parse("jun 12, 2022 01:30:00");If start is greater than end the result is negative. The string is interpreted as a date or timestamp using the format specified by format-string. Enjoy our free tutorials like millions of other internet users since 1999. Arguments are specified after the function name, inside the parentheses. Explore our selection of references covering all popular coding languages. HTML is the standard markup language for creating Web pages. The first argument must be a built-in data type of either INTEGER. With W3Schools online code editor, you can edit HTML, CSS and JavaScript code, and view the result in your browser. 3 = vbTuesday - Tuesday. sql. 00. Run SQL » Result: The Try-MySQL Editor at w3schools. answered Jun 22, 2016 at 3:31. Enjoy our free tutorials like millions of other internet users since 1999. Connect and share knowledge within a single location that is structured and easy to search. g. 5 Date Calculations. I've chosen 2000-01-03 00:00:00, which is a Monday. This function is useful in combination with DATE_FORMAT (). SELECT TIMESTAMPDIFF (<INTERVAL>,<timestampFrom>,<timestampTo>); If you want to find the difference between the first and the last timestamp of a given host ID, here you are: SELECT TIMESTAMPDIFF (MINUTE,MIN (pingtime),MAX (pingtime)) FROM yourTable WHERE host = 2; In addition to minute, you can use day as well. References. Last Update: 23-Nov-2023. Explore our selection of references covering all popular coding languages. To determine how many years old each of your pets is, use the TIMESTAMPDIFF () function. It supports time series analysis by allowing you to calculate the time intervals between data points. so, your second date parameter subtracting from first parameter it return you 3. As per your comment, your SQL Server version is 2012. Enjoy our free tutorials like millions of other internet users since 1999. Optional. TIMEDIFF () is useful for filtering records or data based on time criteria, such as selecting records within a specific time range. If you use the less than (<) or greater than (>) signs in your HTML text, the browser might mix them with tags. 抽出ロジックにミスがあり、特定のアクションをしてから 60 分後までにはお知らせが飛ぶ予定だったのですが、それが一部の条件で飛ばなくなっていました。W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. ; The online Apache Derby Tutorial provides a quick hands-on overview, and the WorkingWithDerby Wiki page links to even more tutorials. SELECT DATEDIFF(month, '2017/08/25', '2011/08/25') AS DateDiff; Edit the SQL Statement, and click "Run SQL" to see the result. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. "W3Schools is a popular online platform that provides web development tutorials and references for various web technologies. In this case there is a SQL function I can use: TIMESTAMPDIFF. : you're comparing dates with timestamps, and not whole days), you can simply convert two date or timestamp strings in the format 'YYYY-MM-DD HH:MM:SS' (or specify your string date format explicitly) using unix_timestamp(), and then subtract them from each other to get the difference in seconds. SQL. Click on the "Run example" button to see how it works. Free Tutorials. If so, invert NOW() and sent_datetime in the expression. Selain memerlukan format tersendiri, hasil dari kolom dengan tipe data date juga 'terbalik', yakni dengan format tampilan YYYY-MM-DD. 1901 to 2155. If there is no ELSE part and no conditions are true, it returns NULL. Share. 0. Explore our selection of references covering all popular coding languages. References. </form>. The TIMESTAMPDIFF function returns an estimated number of intervals of the type that is defined by the first argument, based on the difference between two timestamps. In this case, we can make use of TIMESTAMP_DIFF and CURRENT_TIMESTAMP: SELECT date, TIMESTAMP_DIFF (CURRENT_TIMESTAMP(), date, SECOND) AS seconds_since FROM ( SELECT TIMESTAMP_SUB (CURRENT_TIMESTAMP(), INTERVAL 30 SECOND) AS. There are 2 things to check: Make sure you handle the case where sent_datetime is null, because otherwise TIMESTAMPDIFF will return NULL. It discards microseconds, however. Explore our selection of references covering all popular coding languages. firstdayofweek. Explore our selection of references covering all popular coding languages. SELECT TIMESTAMPDIFF( hour, NOW(), finalize_at ) FROM plans; But the problem is – the PHP date function date('Y-m-d H:i:s') uses the PHP timezone setting, and the NOW() function takes the MySQL timezome. The MySQL DATEDIFF function returns the difference in days between two date values. Use a proper datetime type instead. For example, if you wanted to calculate the difference between two timestamps in seconds, you would use the following query: Description. El esquema es SYSIBM. Alternatively, you can use either of the functions TIMESTAMPDIFF() and UNIX_TIMESTAMP(), both of which return integers. seconds, minutes, hours, etc. An expression that returns a value that is a built-in. SELECT TIMEFROMPARTS ( 14, 23, 44, 5, 1 ); SELECT TIMEFROMPARTS ( 14, 23,. Book a demo or trial today!This last DATEDIFF example would display the difference between current system date and '2014-02-14' (current system date is returned by the CURDATE function ). - 14434. TIMESTAMPDIFF ( numeric-expression string-expression. However, you should avoid using the backslash ( ) because it’s the escape character in MySQL. All you need is to execute the code below and then use the function. We recommend reading this tutorial, in the sequence listed in the left menu. If start is greater than end the result is negative. But the output I get is 1 (day). Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. 6 Answers. We recommend reading this tutorial, in the sequence listed in the left menu. Free Tutorials. 3 Answers. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. As per your comment, your SQL Server version is 2012. 1. TIMESTAMPDIFF () This function subtracts an interval from a datetime expression. The WHERE part goes after the FROM part. Solution 1 (difference in days, hours, minutes, or seconds): The result is: Discussion: To calculate the difference between the timestamps in MySQL, use the TIMESTAMPDIFF. If you need the difference in seconds (i. expr1 is a time or datetime expression, and expr2 is a time expression. The FROM_UNIXTIME function returns a representation of the NUMERIC argument as a value in string format. [Code: -183, SQL State: 22008] A datetime arithmetic operation or a datetime scalar function has a result that is not within the va`lid range of dates. 2) This has been answered before, including by me. Here's a w3schools link on the DATEDIFF () function. Add a comment. MySQL uses the TIMESTAMPDIFF function to calculate the difference between two dates or datetimes: SELECT TIMESTAMPDIFF(unit, startdate, enddate) FROM table_name; Where unit represents the unit of time, like YEAR, QUARTER, MONTH, WEEK, DAY, HOUR, MINUTE, or SECOND. Free Tutorials. Difference of 1 day less than 1 month where the month has less than 30 days. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. SELECT TIMESTAMPDIFF(HOUR, UTC_TIMESTAMP(), NOW()); If the server's timezone is PST this will return -8. 193996. 1. W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. Use: SELECT to_Char (start_dte,'DD. 124 segundos. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Get your own SQL server SQL Statement: x . The TIMESTAMPDIFF() function is truly a powerful tool in our SQL arsenal, enabling us to easily calculate differences between two timestamps. References. MM. ; Second, because the comma (,). datepart The units in which DATEDIFF reports the difference between the startdate and enddate. References. Functions. We can use the following syntax to create an interval value: INTERVAL expr unit. Free Tutorials. Like Liked Unlike Reply. Enjoy our free tutorials like millions of other internet users since 1999. The difference is 25 (hours). 1. I have a table of users in sql and they each have birth dates. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Let’s focus on the data types that can store a date: DATE: used for values that contain a date but no time. Función escalar TIMESTAMPDIFF. – Tim Biegeleisen Return the current time. References. ADDDATE () MySQL ADDDATE () adds a time value with a date. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. 株式会社オズビジョンのユッコ (@terra_yucco) です。今日はトラブル対応中に出くわした MySQL の小ネタ。 トラブルの内容. W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. MySQL Version: 8. 3 = vbTuesday - Tuesday. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. MySQL provides several functions that you can use to perform calculations on dates, for example, to calculate ages or extract parts of dates. Difference of 1 day less than 1 month where the month has less than 30 days. case when stamp1 is null then null when stamp2 is null then null else timestampdiff ( stamp1, stamp2 ) end. Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) This function returns a character string representing the specified datepart of the specified date. TIMESTAMPDIFF ( numeric-expression string-expression. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. In applications, NOW () is used to provide users with real-time information, such as when an action was performed. Explore our selection of references covering all popular coding languages. In SQL Server, you can use DATEDIFF function to get the datetime difference in specified units. The general syntax of this function is: TIMESTAMPDIFF (units, time-date-value1, time-date-value2) The units parameter is required, and the value returned by the function will have a data type of Decimal (31,0). The following example has a function with one argument (fname). 60. Is there a TIMESTAMPDIFF() equivalent for PostgreSQL? I know I can subtract two timestamps to get a postgresql INTERVAL.