Thus, for the following data:. 01. MySQL TIMESTAMPADD () 函数将指定的时间间隔 interval 加到一个日期时间值上并返回结果。. TIMESTAMPDIFF (table. I want to get last 24 hours data from Mysql Database. id - 1) order by a. Sorted by: 4. たとえば、 '2008-10-07' と '08-10-07' は同じ日付と認識されます。. 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. To calculate the difference between the timestamps in MySQL, use the TIMESTAMPDIFF (unit, start, end) function. That should give you the result you want. g. Now all we need to do is convert it into your format. scheduled_date_time) END as "Days Ahead", CASE WHEN slot. We will be using the same employees table in order to demonstrate the intricacies of calculating the difference between two dates in terms of. timestampdiff语法：timestampdiff (interval,datetime1,datetime2)结果：返回（datetime2-datetime1）的时间差，结果单位由interval参数给出。. Share. TIMESTAMPDIFF(MINUTE,T. start, c1. If it helps someone who knows MySQL answer, SQL Server isn't "rounding up"; SQL Server just counts the number of day boundaries between the two times. Here expr2 is greater than expr1, so the return value is positive. 999999 etc into a single value of '>4' using your case statement and group by the output of the case, not the output of the timestampdiff. 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. I just want the difference between the two timestamps in in hours represented by an INT. Use a proper datetime type instead. The unit for the result (an integer) is given by the unit argument. CREATE FUNCTION MicroTimestampDiff ( t1 datetime, t2 datetime ) returns bigint(20) DETERMINISTIC return TIMESTAMPDIFF(microsecond, t1,t2);本文将介绍怎样使用 MySQL 的 TIMESTAMPDIFF () 函数计算两个日期的时间差。. MySQL is quite different from SQLite. This is incorrect because this would only work correctly if the string represents a valid datetime. . You should take a look the TIMESTAMPDIFF function. Use this link to know how to get accurate result using EXTRACT () and JULIAN_DAY () function. UNIT can be SECOND. 5 (nine and a half hours)? Thanks! I've already tried using TIMEDIFF and doing the substract but it returns 9. Date or DateTime could be one of them. NOTE the most voted up answer in this chain is INCORRECT! Using HOUR will only return hours as an integer. select date1, date2,timestampdiff(YEAR,date2,date1) from so7749639. user_id, b. To get the 2 status codes into a single record, use a subquery to get the init records only and join it back to your table filtered saved:Teams. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyThis is out by a factor of 38. Simple but elegant. 3, “Date and Time Literals”. Learn more about TeamsI am using the MySQL TIMESTAMPDIFF() function to calculate the difference in months between two dates, but there is a problem with overflow. SELECT SEC_TO_TIME (TIMESTAMPDIFF (SECOND,`table`. WHERE TIMESTAMPDIFF (month, vrdate, curdate ()) = 0. interval 的法定值同TIMESTAMPADD ()函数说明中所列出的. *, timestampdiff (minute, start_time, end_time) as minutes from t; You can incorporate this into a view, if you want it readily available: create v_t as select t. I have to write a query calculating the time difference in years between two dates. 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. MySQL DATEDIFF: Calculate Days Between Two Dates. Q&A for work. So, I would like to group them by gateway ID and have the value in hours, minutes and seconds. you can use mysql funcion timestampdiff like below. 14 OS: Ubuntu 12. I guess the knowledge and computation effort needed to take DST into account is a waste of time because the returned value cannot be exact (except when the unit is SECOND). Here is on way to solve it using window functions (available in MySQL 8. The Syntax. That will give you the average differences for each distinct value of col1. The PROCESS_START_DATE column in query have data which contains date and time. The TIMESTAMPDIFF () function will then return the difference in the unit specified. Once you strings are converted to dates, you can use timestampdiff(). If start is greater than end the result is negative. To calculate the difference between two date/datetime expressions, use TIMESTAMPDIFF. 0. I have a table from which I am trying to get the average duration. objects. mysql timestampdiff() 函数返回两个日期时间之间的时间间隔。. 🥝 MySQL 시간 차이 계산하기 (TIMESTAMPDIFF 함수) ⌛ Problem 쿼리를 작성하다 보면 시간 차이를 활용해야 하는 경우가 존재합니다. SELECT start, end, TIMESTAMPDIFF(HOUR, `start`, `end`) FROM table1 WHERE start >="2018-01-01" AND ende <= "2018-12-31 In this case I want only select the example 2 entry. If you divide until day, you are fine (every single day every year has the same amount of seconds). date_created = MIN (u. endTime) this works, but if you want to limit the results at DB level, JPA has not support it seems. 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。 Use timestampdiff() to get the time difference, and curdate() to get today's date. session_ID = tracking. DateDiff of. The following illustrates the syntax of the DATE_ADD function: DATE_ADD (start_date, INTERVAL expr unit); Code language: SQL (Structured Query Language) (sql) The DATE_ADD function takes two arguments: start_date is a starting. UNIX_TIMESTAMP is seconds seconds since '1970-01-01 00:00:00' in UTC. So you need to either. Sorted by: 0. 一、时间差函数：timestampdiff 语法：timestampdiff (interval,datetime1. 4 and a bit. 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 WHEN f. The TIMESTAMPDIFF () function's 2nd and 3d arguments are datetime expressions and the 2nd is subtracted from the 3d. YEAR ('2015-01-01') returns 2015, which is not a valid date, which breaks timestampdiff () causing it to return NULL. Also the sign of the method change but works on both H2 and My. 1 Answer. I have an issue with the following TIMESTAMPDIFF (which calculates the time difference between changes of location) producing a negative result but only for the first TIMESTAMPDIFF calculation, thereafter the calculation for each subsequent row is correct, it may be that the IFNULL expression is incorrect –SELECT TIMESTAMPDIFF(MONTH, '2012-05-05', '2012-06-04') as difference -- output: 0. TIMEDIFF () is essential for time-based analysis by enabling you to measure the duration of events or actions. montant_annuel = NEW. So we could modify the previous example so that TIMESTAMPDIFF. Modified 7 years, 1 month ago. 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. cancel_reason_id is. In MySQL, you can use TIMESTAMPDIFF function. But now i have migrated my data to Oracle. When you insert a TIMESTAMP value into a table, MySQL. @Enrico - Not true. Select TIMESTAMPDIFF( YEAR, startdate, now() ) as _year ,TIMESTAMPDIFF( MONTH, startdate, now() ) % 12 as _month ,FLOOR( TIMESTAMPDIFF( DAY, startdate, now() ) % 30. MySQL: TIMESTAMPDIFF() condition having no effect. Unfortunately, that usually yields the value SYSTEM, meaning the MySQL time is governed by the server OS's time zone setting. 1 Answer. She paid most of the notes however did. The result returned by TIMEDIFF() is limited to the range allowed for TIME values. MySQLで利用できる日付関数について確認します。. MySQL TIMEDIFF () function. Get the current date as timestamp and get the DATE_ADDED column value as timestamp and after that. SELECT * from test WHERE `TIMESTAMPDIFF(SECOND, x_time, y_time)` LIMIT 100000, 5000 Please note what the query will do before present any data. Follow. Returns. 따라서timestampdiff 함수는 날짜 차이에 대한 계산 방식은datetime2-datetime1의 차이입니다. MySQL convert timediff output to day, hour, minute, second format. Yes, because the timestamp handles the leap years. Usage and definition for TIMESTAMPDIFF function (Doc ID 2756136. CREATE TABLE IF NOT EXISTS `login_user` ( `idx` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT, `client_id` INT(11) UNSIGNED NOT NULL DEFAULT '0', `login` DATETIME NULL, `Logout` DATETIME NULL, `Time` INT(11) AS (TIMESTAMPDIFF(second,`login`,`Logout`)), PRIMARY KEY (`idx`) ). Finally I was able to solve it. In mysql documentation has function PERIOD_DIFF that returns the number of months between periods P1 and P2. In order to convert days to a date, so you can get the number of years etc you need to use from_days(); from_days() doesn't really work before 1582, to quote from the documentation: "Use FROM_DAYS(). @ajeh: they are using Standard SQL-92 and the spec states, "Arithmetic operations involving items of type datetime or interval obey the natural rules associated with dates and times and yield valid datetime or interval results according to the Gregorian calendar. 0. `End_Date`, TIMESTAMPDIFF(HOUR, b. Below would correct the most popular answer to return hours as an integer and minutes as a decimal (ie 6. So i want to use the same query to get the TIMESTAMPDIFF in a table in Oracle. There are five data types in MySQL. how to get last 24 hours records from mysql DB divided by 60 minutes interval. Returns datetime_expr2 - datetime_expr1, where datetime_expr1 and datetime_expr2 are date or datetime expressions. The TIMESTAMP () function returns a datetime value based on a date or datetime value. id = gc_sessions. 引数は、結果を表現する単位、および差を求める 2 つの日付です。. Syntax Is there a TIMESTAMPDIFF() equivalent for PostgreSQL? I know I can subtract two timestamps to get a postgresql INTERVAL. 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. It should work for periods spanning more than one night as well. For example, you can use: SELECT TIMESTAMPDIFF (SECOND, '2012-06-06 13:13:55', '2012-06-06 15:20:18') In your case, the third parameter of TIMSTAMPDIFF function would be the current login time ( NOW () ). Requires 3 arguments. created, T0. g. To calculate the difference between the timestamps in MySQL, use the TIMESTAMPDIFF (unit, start, end) function. DELIMITER ; CREATE TRIGGER default_time_trigger BEFORE INSERT ON TABLE_NAME FOR EACH ROW BEGIN IF (NEW. Sorted by: 1. Mysql Timediff function is not working for me for long date. 6. SELECT TIMEDIFF (end_time,start_time) AS "total" FROM `metrics`; meaning 116 hours, 12 minutes and 10 seconds. Parameter 3 - End Date or Datetime Values. Using timestampdiff with query builder codeigniter. Your code is right, TIMESTAMPDIFF () returns a value after subtracting a datetime expression from another. On the other hand, DATEDIFF () doesn’t allow you to specify a unit. MySQL: TIMESTAMPDIFF() condition having no effect. Parameter 1 - unit, it is a type of output you want, such as MICROSECOND, SECOND MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, YEAR. You are basically going to drive mysql crazy because of how the query gets evaluated. After executing you can use it like this. Aurora MySQL also supports DATE_SUB for subtracting date parts from a date time expression. . The unit for interval is given by the unit argument, which should be one of the following values:. . It does seem to be smarter than a simple diff/365. SQL Server: -- Get difference in days SELECT DATEDIFF(dd, '2022-09-01', '2022-09-05'); # 4SELECT TIMESTAMPDIFF (YEAR, YOUR_COLUMN, CURDATE()) FROM YOUR_TABLE AS AGE Check the demo image below. The schema is SYSIBM. If the returned value is 5 , the. The difference is 25 (hours). TIMESTAMPDIFF. It seems that two TIMESTAMPDIFF fucntion calls with same datetime expr parameters on `where` clause will return same result although they have different unit parameter. TIMESTAMPDIFF ( numeric-expression string-expression. date_created, t. Why mysql datetime minus not correct? Hot Network Questions Example of operator that commutes with a given multiplication that is not itself a multiplication. 2 Answers. Share. Scenario : 1) User calls API from Lumen backend to insert data on a table. 04 I created also a function, but without adding microseconds, because MySQL 5. The following query selects all rows with a date_col value from within the last 30 days: . start_datetime, b. 返回值. 2022/11/26. DATE_SUB () MySql date_sub () function subtract a time value (as interval) from a date. For example: CREATE TABLE t1 (t TIME (3), dt DATETIME (6)); The fsp value, if given, must be in the range 0 to 6. timestampdiff Description. end_date) <= 0 can be optimized by changing to to q. Follow. The first step in calculating the difference between two timestamps in MySQL is to have your two dates ready for comparison. Only show hours in MYSQL DATEDIFF. If you are using timestamp, this could be the solution in MySQL using SQL. I am working on migrating functions from SQL Server 2000 to MySQL. hoping you all are doing well, I'm working with MySql and using a TIMESTAMPDIFF function like this: TIMESTAMPDIFF (HOUR, 07:00:00, 16:30:00) and this return 9. Add a comment. SELECT TIMESTAMPDIFF(hour, a. Stack Overflow. 1. g. Sorted by: 18. datetime difference shows wrong values in mysql. Here is an example that uses date functions. Improve this answer. Here’s the syntax of the TIMESTAMPDIFF function: TIMESTAMPDIFF (unit, begin, end ); Code language: SQL (Structured Query Language) (sql) In this syntax: begin. So you need to first create an empty new column, and then populate it by doing a TIMESTAMPDIFF. TIMESTAMPDIFF (SECOND, NOW (),q. 6 リファレンスマニュアル : : 日付の計算. 1. P1 and P2 should be in the format YYMM or YYYYMM. MySQL TIMESTAMPDIFF函数简介. 6. SELECT `date_time`,now (),timediff (`date_time`,now ()) FROM `table_datetime`. timeDiff) FROM ( SELECT Sec_to_time(Avg (Timestampdiff (second,. About;. TimeStamp1, t1. When using such tools, we can clearly see that int and double does not auto generate a default value to it, but timestamp. 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. 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. 1. SELECT TIMESTAMPDIFF (MINUTE, MINUTE (NOW ()), NOW ()) This should return a timestamp that is on the current hour, but it's always returning null. Actually the data type for the columns is TIME, and this a sample of data stored: 07:11:40 07:11:56. Meanwhile, if you just say BETWEEN this_value AND that_value, MySQL doesn't have to do much at all -- it can consult the index and just find the two endpoints of the range, which is much faster. To determine how many years old each of your pets is, use the TIMESTAMPDIFF () function. Timediff in MySQL wrong values. NET. 0. 2. Have a look at the TIMESTAMPDIFF() function in MySQL. An expression that returns a value of built-in CHAR or VARCHAR data type. Noting Ollie Jones warning, I've tested TIMESTAMPDIFF on MySQL version 5. mysql. TIMESTAMPADD works just fine, I am only having trouble with this function. I am using below code for today and database date. Here is explanation of equivalent JPA Criteria Query of. Requires 3 arguments. 摘要：在本教程中，您将学习如何使用 MySQL TIMESTAMPDIFF函数来计算两个DATE或DATETIME值之间的差异。. Hi I tried the following: timediff(`date2`, `date1`) which gives me the time difference but if the days are different it does not account for the day difference. A real world example. select(sum(df. MySQL Database: Restore Database. not sure what. SELECT * FROM subscriptions WHERE active_until >= (TIMESTAMPDIFF(DAY, 3, CURRENT_DATE)). Some days have an extra second or two seconds depending on the year. 0. Use mysql's timestampdiff () function to calculate the difference and use from_unixtime () function to convert the timestamp into a datetime data type. timestamp. SELECT a. 0. The main problem is as follows: In order to find the difference between days you need to use datediff(); datediff() returns the difference in days. Using TIMESTAMPDIFF : NOTE:- Following Assumptions are made for TIMESTAMPDIFF () function. 1 Answer. I want to get the difference between 2 datetime where datetime 1 is now () and datetime 2 is the previous log of particular user. SELECT PERIOD_DIFF('201205', '201206') as difference. 单位由interval 参数给出。. So subtracting a TIMESTAMP WITH TIME ZONE that is 5 am Eastern from a TIMESTAMP WITH TIME ZONE that is 2 am Pacific will result in an interval of 0. Depending on your data and the max values, that may eliminate enough rows to make the non-sargable search "less painful". )DATEDIFF() TIMESTAMPDIFF() 2つの引数を必要とする。 引数が3つ必要です。 第1引数から第2引数を引く（expr1 – expr2）。 第3引数から第2引数を引く（expr2 – expr1）。1 Answer. Weeks, quarters, and years follow from that. Its arguments are the unit in which you want the result expressed, and the two. TimeStamp2, t2. So we could modify the previous example so that TIMESTAMPDIFF. Una expresión que devuelve un valor. You can use the DATEDIFF () function which will give you the difference in days. I need to calculate the average number of years from my MySQL database, and I try to use TIMESTAMPDIFF. See the syntax, parameters,. 今回は、「現在の日付」と「誕生日」の差分から、その「年数」を取得. x -- here's an example : Erratic behaviour of TIMESTAMPDIFF() Note that MySQL 5. timestamp_start)) as total_time From timestamp. 39 running in a Podman container on my Linux laptop: both columns not null: COALESCE: 9613 vs IFNULL: 8673. SELECT start, end, TIMESTAMPDIFF(HOUR, `start`, `end`) FROM table1 WHERE start >="2018-01-01" AND ende <= "2018-12-31 In this case I want only select the example 2. numeric-expression. About;. Add a comment | Your Answer Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Dec 18, 2014 at 6:32. Below. walter. Alternatively, for the difference between dates in minutes, hours, days, weeks, months, or years – SELECT TIMESTAMPDIFF (UNIT, `DATE-A`, `DATE-B`) FROM `TABLE`. Switch between time and CURRENT_TIMESTAMP, you will get a positive number. time2: The second TIME or. id, f. 7 Date and Time Functions. If it helps someone who knows MySQL answer, SQL Server isn't "rounding up"; SQL Server just counts the number of day boundaries between the two times. However for minutes, the following is returning correct value but negative e. Result is expressed as a time value (and it has the limitations of the time data. 日付の「比較」「加算」「差分」「抽出」など利用例を交えて解説します。. Days. You can use EF. TIMESTAMPDIFF (interval,datetime_expr1,datetime_expr2) 说明: 返回日期或日期时间表达式datetime_expr1 和datetime_expr2the 之间的整数差。. According to the documentation, the first argument can be any of the following: MICROSECOND SECOND MINUTE HOUR DAY WEEK MONTH QUARTER YEAR6. – AK47. TIMESTAMPDIFF giving unexpected result. See syntax, valid units, and. Hot Network Questions I found out 6 years after my daughter got her car that I was the primary and not the co-signer. About; Products For Teams. 4. MySQL timestampdiff function with examples is given below: 1. khauser commented Jan 4, 2019. Calculate the time difference between two timestamps in mysql. 0): TIMESTAMPDIFF() Return the difference of two datetime expressions, using the units specified TO_DAYS() Return the date argument converted to days TO_SECONDS(). The following syntax works on MySQL 5. Issue Using TimeStampDiff() In SQL Query. So my question is, there's a way to get the return as 9. TIME_TO_SEC (TIMEDIFF (endDate, startDate))/3600 as hours. If you divide until day, you are fine (every single day every year has the same amount of seconds). for more on date functions MySQL documentation. – axiacDATEDIFF (datepart, startdate, enddate) which can return the difference in years, months, days etc. If the value is not a CHAR or VARCHAR data type, it is implicitly cast to VARCHAR before evaluating the function. I have tried to used timestampdiff, but it takes three arguments. 6. 이 외에도 차이를 연, 분기, 월, 주, 일, 시, 분, 초를 지정하여 가져올 때 사용하는 함수가 timestampdiff. Just make the second argument '2015-01-01' and as long as your EndDate is good, it should work. 21. The MYSQL TIMESTAMPDIFF () function accepts two datetime or date expressions as parameters, calculates the difference between them and returns the result. 1 Answer. TIMESTAMPDIFF(unit,datetime_expr1,datetime_expr2) where unit argument, which should be one of the following values: MICROSECOND (microseconds), SECOND, MINUTE,. `date`, NOW())) The goal is to return the records whose time is closest to right now -- a record 1 minute in the future is closer (lower in order) than one 5 minutes in the past, is closer than 1 hour in the future, and so on. SELECT * FROM table WHERE TIMESTAMPDIFF (MINUTE,timestamp,NOW ()) AS thisisit. It accepts two TIMESTAMP or DATETIME values (DATE values will auto-convert in MySQL) as well as the unit of time we want to. HTH. seconds, minutes, hours, etc. tour_ID =. This is because the UNIX_TIMESTAMP () function fails for DATEs before 1970-01-01 (and for dates in the far future using 32 bit integers). date_created) ) s. Result is expressed as a time value (and it has the limitations of the time. I tried to look for a solution with annotate, but there is no support for aggregate functions in either mysql nor postgres. my result is. end, TIMESTAMPDIFF(MINUTE,c1. MySQL Examples MySQL Examples MySQL Editor MySQL Quiz MySQL Exercises MySQL Certificate. So. Share. You can find out the current time zone setting this way: SELECT @@time_zone. James James. Clearly it is paying attention to the offset, and in this situation, it is using it correctly. expresión-numérica. You should extract the YEAR from curdate () and subtract that. To create an interval value, you use the following expression, (INTERVAL expr unit) ex: INTERVAL 1 DAY. You can concatenate the output of curdate() to a string containing the specific time you want to subtract from: select timestampdiff( MINUTE, your_column, concat( curdate(), ' 12:00:00' )) from your_table; 3 Answers. 0. As one trivial example: 2016-02-16 22:00 to 2016-02-17 08:30 should return 150. timeDiff), SECOND(x. Here, you have learned how to use MySQL TIMESTAMPDIFF() function with various examples. The function requires a unit of time value that you want to retrieve and two datetime expressions. 0. For instance: select t. 0), 1) AS "Worked Hours" FROM `db_foo` WHERE matriculation='X' AND date='2017-yy-yy'; which would return. – Tim Biegeleisen. The key idea is to use order by and limit: If you want the closest one before: SELECT one FROM table WHERE datetimefield <= '2014-12-10 09:45:00' ORDER BY datetimefield DESC LIMIT 1; If you want the closest, in either direction, then use TIMESTAMPDIFF (): ORDER BY abs (TIMESTAMPDIFF (second, datetimefield, '2014. CREATE TABLE `contract` ( `id` int (11) NOT NULL AUTO_INCREMENT, `emp_id` int (11) DEFAULT NULL , `sign_time` datetime DEFAULT NULL , `end_time` datetime DEFAULT NULL , PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 ; CREATE TABLE. Is there some syntax problem? SELECT orders. Use this version: CONCAT ( TIMESTAMPDIFF (day, TIME_START, TIME_END), 'd ', MOD (TIMESTAMPDIFF (hour, TIME_START, TIME_END), 24), 'h ', MOD (TIMESTAMPDIFF (minute, TIME_START,. 0. For example, you can use: SELECT TIMESTAMPDIFF (SECOND, '2012-06-06 13:13:55', '2012-06-06 15:20:18') In your case,. mysql timestampdiff() ignoring weekends. mysql> select curdate();-> '2008-06-13' mysql> select curdate() + 0;-> 20080613 current_date, current_date(). MySQL TIMESTAMPDIFF函数简介. Sorted by: 18. E. mysql学习 mysql. fin,NEW. 6 timestampdiff problem with return result. Definition and Usage The TIMEDIFF () function returns the difference between two time/datetime expressions. Date Arithmetic: The ADDDATE () function can be used to perform arithmetic operations on dates, such as adding or subtracting days, weeks, months, or years. use TIMESTAMPDIFF. One expression may be a date and the other a datetime. 2. début)/365) Here is my table and the result in the 'montant_annuel' column:TIMESTAMPDIFF(unit, datetime_expr1, datetime_expr2); Returns datetime_expr2 − datetime_expr1 , where datetime_expr1 and datetime_expr2 are date or datetime expressions. status = 1 GROUP BY t. To achieve this, we will utilize the MySQL DATEDIFF () function to calculate their ages: SELECT CONCAT (first_name, ' ', last_name) AS full_name, birth_date, FLOOR (DATEDIFF (CURRENT_DATE, birth_date) / 365) AS age FROM employees; In this query, the DATEDIFF () function calculates the number of days between the current date and the birth_date. TIMESTAMPDIFF not working on mysql query in codeigniter. 0. Try adjusting your query to use modern join syntax, to say. 13. Looking for a MySQL Query that does that. SELECT * from calls where TIMESTAMPDIFF (SECOND, setup, released) < 3600; First you have to create unit expression and extend it from BasicFunctionExpression for which take "SECOND" parameter as a unit and override its rendor (RenderingContext renderingContext). answered Feb 4, 2018 at 5:33.