yeardiff in mysql. Compare MySQL databases & automatically create schema & data change scripts/migrations rapidly (up & down SQL supported) for database version control. yeardiff in mysql

 
Compare MySQL databases & automatically create schema & data change scripts/migrations rapidly (up & down SQL supported) for database version controlyeardiff in mysql  Note that the period arguments P1 and P2 are not date values

For example, I don't even remember if MySQL has the BIT datatype. As of MySQL 8. ISOWEEK: Uses ISO 8601 week boundaries. Then when you call with: select * from dbo. Reload to refresh your session. Posted on May 11, 2021 by Ian. I'm trying to obtain the age of companies in years months and days, however the calculation its not right. Of course somebody already has. 4. CREATE TABLE t1 ( id int unsigned primary key, date1 date, date2 date ); INSERT INTO t1 (id, date1, date2) VALUES (1, '2017-12-29', '2018-01-05'), (2, '2018-02-20', '2018-03-05'); SELECT date1, date2, DATEDIFF (date2,CASE YEAR (date1) WHEN YEAR (date2) THEN date1 ELSE MAKEDATE (YEAR (date2),1) END) FROM t1; That way, if. MySQL Data Types (Version 8. 0. To determine how many years old each of your pets is, use the TIMESTAMPDIFF () function. Get total of rows in a mysql table grouped by months and years. 1. 2). You are not following the example from the Carbon Documentation. Fortunately, MySQL provides a handy date function to make such calculations easy-breezy – say hello to the MySQL datediff function. It contains class and instance methods for creating, parsing, interrogating, transforming, and formatting them. 3. Follow answered Jan 29, 2014 at 9:05. The MySQL TIMESTAMPDIFF() function is used to find the difference between two date or datetime expressions. expr1 and expr2 are date or date-and-time expressions. MySQL server uses the PASSWORD function to encrypt MySQL passwords for storage in the. this will be add to 1900-01-01 , but only the months. It also takes care of cases where start_date and end_date fall in the same year, contiguous years, etc. MySQL SQL MySQL SELECT MySQL WHERE MySQL AND, OR, NOT MySQL ORDER BY MySQL INSERT INTO MySQL NULL Values MySQL UPDATE MySQL DELETE MySQL LIMIT MySQL MIN and MAX MySQL COUNT, AVG, SUM MySQL LIKE MySQL Wildcards MySQL IN MySQL BETWEEN MySQL Aliases MySQL Joins MySQL. schema / table definitions) of two MySQL databases, and returns the differences as a sequence of MySQL commands suitable for piping into mysql which will transform the structure of the first database to be identical to that. end_date: The date to which you want to calculate the difference. Most modern versions of MyQL replace the database_name with * in the grant privileges command after you select the database that you want to use. You can then. 3. – Tim Biegeleisen. Parameter 1 - unit, it is a type of output you want, such as MICROSECOND, SECOND MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, YEAR. MySQL Dates between Dates. SELECT year (dt2) FROM `dt_tb`. 0. Returns datetime_expr2 - datetime_expr1, where datetime_expr1 and datetime_expr2 are date or datetime expressions. 2. The following query selects all rows with a date_col value from within the last 30 days: . In this article, we used the LAG () window function to calculate year-to-year and month-to-month differences. MySQL TIMESTAMPDIFF function is one of the Date methods, which is useful to find the interval difference between two dates or DateTime expressions. We can do this operation with the help of the following query. Stack Exchange Network. MySQL is ideal for both small and large applications. If I'm understanding correct, you need only the days from the year of your second date. frame (now, now2) sqldf ("select now2 - now as dif from DF2. e. UNIX_TIMESTAMP (ts1) - UNIX_TIMESTAMP (ts2) If you want an unsigned difference, add an ABS () around the expression. It will give you exact age in years. SELECT DATEDIFF ("2020-11-20", "2020-11-1"); 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 ). Difference between OLTP and Inmon Data Warehouse. The MYSQL DATEDIFF () function accepts two date or, date-time values as parameters, calculates the difference between them (argument1-argument2) and returns the result. The DATE type is used for values with a date part but no time part. Here the date1 is greater than date2, so. Takes three arguments, the start date. Another simple way to cast the string to dateType in spark sql and apply sql dates and time functions on the columns like following : . MySQL the TIMESTAMPDIFF () returns a value after subtracting a datetime expression from another. MySQL :: MySQL 5. In MySQL, you can use TIMESTAMPDIFF function. 0. It is not necessary that both the expression are of the same type. ISO weeks begin on Monday. Consider there are 44 days between two dates. Based in the answer from dbdemon, you could use a CASE: CREATE TABLE t1 ( id int unsigned primary key, date1 date, date2 date ); INSERT INTO t1 (id, date1, date2) VALUES (1, '2017-12-29', '2018-01-05'), (2, '2018-02-20', '2018-03-05'); SELECT. Make sure to pass end date as first parameter and start date as second parameter to DATEDIFF function in hive. To specify common table expressions, use a WITH clause that has one or more comma-separated subclauses. The MySQL DATEDIFF function returns the difference in days between two date values. Sorted by: 71. SQL 2022-03-27 19:30:32 concat column value of same user in mysql SQL 2022-03-27 19:05:02 sql developer sql worksheet not showing SQL 2022-03-27 18:45:07 kill a pid redshiftLearn the syntax of the datediff function of the SQL language in Databricks SQL and Databricks Runtime. Each subclause provides a subquery that produces a result set, and associates a name with the subquery. Add 10 days to a date and return the date: SELECT DATE_ADD("2017-06-15", INTERVAL 10. DEMO: Select date from Calendar to execute YEAR () →. MySQL PERIOD DIFF () Function - The DATE, DATETIME and TIMESTAMP datatypes in MySQL are used to store the date, date and time, time stamp values respectively. startdate: The starting datetime value. for more on date functions MySQL documentation. 8. MySQL is a widely used relational database management system (RDBMS). Collectives™ on Stack Overflow. Compare MySQL databases & automatically create schema & data change scripts/migrations rapidly (up & down SQL supported) for database version control. MySQL Database: Restore Database. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. From start of the year that contains end_date to the end_date. Date values are interpreted as DateTime with the time part set to 00:00:00 by default. 60 sec) Insert some records in the table using insert. Let us first create a table −mysql> create table DemoTable864(DueDateTime timestamp); Query OK, 0 rows affected (0. 0 does not support the 2-digit YEAR (2) data type permitted in older versions of MySQL. SSS"). This function takes two arguments: The end date. MySQL 8. MySQL DATEDIFF () returns the number of days between two dates or datetimes. Full years between start_date and end_date, and. Example. 9. MySQL recognizes DATE , DATETIME, and TIMESTAMP values in several formats, described in Section 9. Rather than pulling it into PHP you can do this directly from the MySQL query, For example, the following query returns a the average age of users in days to the current date: SELECT AVG (DATEDIFF (NOW (), birthday)) AS AverageAge FROM `user_records`; Share. Below is the example that returns a difference of two date values, 2020-03-01 and 2020-03-10, in days: Query: select timestampdiff(day,'2020-03-01', '2020-03-10') AS result; Output:The value I would actually like to be seen selected out is the years it has been released as a decimal number (up to 1 decimal point), so it would show the age such as (ex. A DateTime is an immutable data structure representing a specific date and time and accompanying methods. The datediff function can return the difference between two dates in days, months, years, minutes, etc. For this, these must only be stored as permitted data values. When analyzing historical data, DATEDIFF () helps quantify the time. DATEDIFF accepts either. number of seconds to years-months-weeks-days-HH:MM-SS. Date or DateTime could be one of them. Specifies what day the week starts on. The age computation takes into account leap years. Mysql count query by Grouping Year and Month horizontal. MySQL - maximum of sum over different months with ties over multiple years. This SQL Server tutorial explains how to use the DATEDIFF function in SQL Server (Transact-SQL) with syntax and examples. To track the shipping turnaround time, we can use the DATEDIFF () function. No other values for basis are valid when computing a person’s age. In MySQL you can use the DATE function to extract the date from a datetime:. It stores these values as NUMERIC or TEXT typed values depending on input format. 4. 2 - First day of week is Sunday. datePart is the part of the date to return. Its arguments are the unit in which you want the result expressed, and the two dates for. 7. The Datepicker plugin has one specific option for such cases - shortYearCutoff: shortYearCutoff. The function strftime() is able to extract date/time info from a date stored in a text column, but it only works if you respect the ISO8601 notation: YYYY-MM-DD HH:MM:SS. Just copy and paste. orders table as in Example 3, we can use DATEDIFF () to find the interval between today's date and the date on which an order is placed. Returns datetime_expr2 − datetime_expr1, where datetime_expr1 and datetime_expr2 are date or datetime expressions. @asfasas You can always convert the results using a proper mask. Function will return number of days between startdate and enddate. 00 sec)Use the YEAR () function to retrieve the year value from a date/datetime/timestamp column in MySQL. It's a. If the date is zero, the YEAR () function returns 0. DATEDIFF (datePart, date1, date2) The DATEDIFF () function in SQL Server has three required parameters: datePart is the part of the date to. 9 Arithmetic Operators. ); These arguments can be date/datetime values, expressions. todate, t. 6. import org. While SQL is a programming language used to work with data in relational databases, MySQL is an open-source database product that implements the SQL standard. e. Parameter 2 - Begin Date or Datetime Values. Date or DateTime could be one of them. The DATE, DATETIME and TIMESTAMP datatypes in MySQL are used to store the date, date and time, time stamp values respectively. In this tutorial, we collect the FULL LIST of MySQL Data Types in 2023 ( String, Numeric, Dates, Spatial, JSON) Check for examples and useful tips!The MySQL BETWEEN Operator. All functions can be used in both the load script and in chart expressions. SQLite does not have a storage class set aside for storing dates and/or times. If you omit the password value following the --password or . 1. Caveat: I work mostly with MS SQL and haven't worked with MySQL in a long time, so you may need to tweak the above. Let's look at some MySQL YEAR function examples and explore how to use the YEAR function in MySQL. title as Title, DATEDIFF (CURDATE (),Books. MySQL 8. One may be a date and another is datetime. DATEDIFF() is a function found in SQL Server and MySQL that calculates and returns the difference between two date values. Syntax of MySQL DATEDIFF () DATEDIFF (date1, date2) Code language: SQL (Structured Query Language) (sql) Where, ‘date1’ and ‘date2’ are two date or. 0 does not support the 2-digit YEAR (2) data type permitted in older versions of MySQL. This will make any type of comparison. To get the difference in seconds as we have done here, choose SECOND. 4. Possible duplicate of Only show hours in MYSQL DATEDIFF – Sebastian Brosch. You can see that we have just replaced the COMMIT. Description. Here the returned results will be in months (either negative or positive) and two periods parameters used in this function should be in. USE TIMESTAMPDIFF MySQL function. Date functions give you numerous options on how to modify, calculate, and convert date, time, and datetime expressions in MySQL. 47. In SQL SERVER, you can use the following query (replace the date with your field): SELECT CASE WHEN datediff (year, '20120303', getdate ()) > 1 THEN datediff (year, '20120303', getdate ()) ELSE datediff (day, '20120303', getdate ()) END AS Diff. The server is accessible as a separate library that can be embedded into your applications to handle database commands. 46. 5 Answers. Here is an example that uses date functions. Without using the DATE () function, then MySQL will also compare the time portion of the column with your string expression. e. Microsoft Windows. Lukasz Szozda Lukasz Szozda. SELECT ((DATEDIFF('2022-01-02', '2021-12-30'))+1 - ((WEEK('2022-01-02') - WEEK('2021-12-30')) * 2) - (case when weekday('2022-01-02') = 5 then 1 else 0 end) - (case when weekday('2021-12-30') = 4 then 1 else 0 end)) as DifD but it gives wrong count (105 days. 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 () ). Got this script from net (thanks to coffeecupweb) <?php /** * Simple PHP age Calculator * * Calculate and returns age based on the date provided by the user. fin,NEW. However the documentation states nothing about the correctness of this or how it calculates the difference. The values can be numbers, text, or dates. DATEDIFF (datepart, startdate, enddate) which can return the difference in years, months, days etc. MySQL is free and open-source. Examples below. This function takes only one argument – a date or date and time. MySQL provides several functions that you can use to perform calculations on dates, for example, to calculate ages or extract parts of dates. This effectively means that MySQL date-functions are useless to you. Periods should be in the same format i. end_date: The date to which you want to calculate the difference. One of the many unwritten Rules about Relational databases - Dates have no format. SQL Server Syntax. The core of MySQL is the MySQL server. 1. Can be one of the following: 0 - First day of week is Sunday. Introduction to MySQL DATE_ADD function. WARNING: An ideal function would be aware of leap years and days count in every month, but I found the. MySQL DATEDIFF is used to find the difference between the specified dates. It only returns the result in days. The MySQL DATEDIFF () function takes two dates and returns the number of days between them. UNIT can be SECOND. It's a useful function for performing date-based calculations and obtaining insights into the duration between two points in time. Here’s a quick rundown of the functions you can use in MySQL:. MySQL - TIMEDIFF () Function. For the DATE and DATETIME range descriptions, “supported” means that although earlier values might work, there is no guarantee. Seems like you solve all you need except the filter (WHERE) condition. This function is particularly useful when dealing with data that involves comparing or calculating differences between year-month intervals. Edit the SQL Statement, and click "Run SQL" to see the result. For a detailed explanation for each step of the. sql 日期范围的sql datediff()与between用法 在本文中,我们将介绍sql中用于日期范围的两种常用方法:sql datediff()和sql between。这些方法可以帮助我们在sql查询中处理日期范围,从而更方便地获取所需的数据。 阅读更多:sql 教程 sql datediff()函数 sql datediff()函数用于计算两个日期之间的差距。Both changes to the orders and products table are now saved permanently. The YEARWEEK function may return a year value that is different than the year displayed in the date_value because of the mode specified. DATE_SUB. Used with %x. MySQL can easily handle date arithmetic. 68 sec) Insert values for all fields using insert command. Periods should be in the same format i. This MariaDB tutorial explains how to use the MariaDB DATEDIFF function with syntax and examples. 0. To help keep things standardized, you should only ever work with dates / times in UTC time zone. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. )Table 12. Introduction to MySQL DATEDIFF () function. SELECT starter_name, starter_date + INTERVAL 90 * CEILING (DATEDIFF (CURRENT_DATE, starter_date) / 90) DAY next_review_date FROM starters_table ORDER BY next_review_date ASC; The query shows "next review" dates for all starters. Introduction. PyMySQL is a pure-Python MySQL client library, based on PEP 249. In MySql the syntax of DATEDIFF is different: DATEDIFF (date1, date2) and returns the difference date1 - date2 in days. Here expr2 is greater than expr1, so the return value is positive. USE TIMESTAMPDIFF MySQL function. 날짜차이 계산하기 : DATEDIFF (e. Getting the number of days between two specified date values where the date is specified in the format of YYYY-MM-DD. MySQL provides a set of functions to. Optional. ) Week where Sunday is the first day of the week (01 to 53). For the DATE and DATETIME range descriptions, “supported” means that although earlier values might work, there is no guarantee. The date expressions can be of DATE, DATETIME, or TIMESTAMP type. In MS SQL Server, the DATEDIFF function is used to get the difference between two dates in terms of years, months, days, hours, minutes etc. It works if my beginning date is the first of january and the end date the 31st of December, but does not if it stars somewhere else during the year. MySQL Database: Restore Database. Since the question is being tagged for mysql, I have the following implementation that works for me and I hope similar alternatives would be there for other RDBMS's. So, you can use TIMESTAMPDIFF for your purpose. If you want to create a Carbon object from a formatted date string you can use the constructor of the class just like this:I'm trying to obtain the age of companies in years months and days, however the calculation its not right. e. Try the functions years_add (timestamp date, int years) or years_sub (timestamp date, int years) which are mentioned in cloudera's latest documentation. If both operands are integers and any of them are unsigned, the result is an unsigned integer. These changes are driven by the fact that technology is advancing (machines have more CPUS, use SSDs and so on), more data is being stored, MySQL is evolving (InnoDB, Group Replication, AdminAPI), and so on. function. Specifically, it gets the difference between 2 dates with the results returned in date units specified as years, months days, minutes, seconds as a bigint value. They are grouped into five main categories: Numeric data types. This last DATEDIFF example would display the difference between current system date and '2014-05-19' (current system date is returned by the CURDATE function ). 1. If you think that your Dates have a "format", then you're looking almost certainly at Character data, not proper Dates and, as you've discovered, trying to work. DATEDIFF returnes the number of full weeks between the datetime values. With two arguments, the sum of the arguments. SELECT * FROM players WHERE DATE(us_reg_date) BETWEEN '2000-07-05' AND '2011-11-10' But if you want to take advantage of an index on the column us_reg_date you might want to try this. The difference between startdate and enddate is expressed in days. The unit for the result is given by another argument. TIMESTAMPDIFF () in MySQL returns a value after dividing one DateTime expression by another. To get the difference in minutes, choose MINUTE; for the difference. It is to be noted that periods are not date values. JULIANDAY(arrival) - JULIANDAY(departure) In most cases, what you really want is. Based in the answer from dbdemon, you could use a CASE:. So we could modify the previous example so that TIMESTAMPDIFF. ) how to calculate mysql date diff between two dates excluding Fridays and Saturdays as Fridays and Saturdays are off days. If data is stored as a DATE or DATETIME data type, it is stored as a binary value, NOT in any particular human-readable format. PostgreSQL - Date Difference in Weeks. TEXT as ISO8601 strings ("YYYY-MM-DD HH:MM:SS. And you are trying to pass a formatted date string. 14+ and the mode is not specified, the YEARWEEK function will use the value in the default_week. Common Table Expressions. DATEDIFF (datepart, startdate, enddate) which can return the difference in years, months, days etc. MySQL is widely used in web applications, content management systems, and data warehousing. Optional. Format2. DECLARE @date datetime2 = '2021-01-07 14:36:17. The first date is the later and the second is the earlier date (flipping them the other way around will return a negative value). Mysql PERIOD_DIFF () Function. MySQL TIMESTAMPDIFF() Function - The DATE, DATETIME and TIMESTAMP datatypes in MySQL are used to store the date, date and time, time stamp values respectively. Date Interval Calculation: The number of specified date parts between two provided dates is found using the DATEDIFF () method. The two expressions don’t have to be of the same type. Di tutorial ini, saya tidak akan membahas satu per satu. Discussion: To calculate the difference between the arrival and the departure in T-SQL, use the DATEDIFF(datepart, startdate, enddate) function. So, we can use the TIMEDIFF() function with time values greater than 24 hours. Edit: Fixed the queryMySQL Date Data Types. how to count mysql records for each month of the year grouped by one field. As you can't use date functions you're going to have to make up your own. This function only calculates the date portion from each expression. I need to find how many months there are within these two days. fn_DateDiff_YMDMHS ('1900-01-01 00:00:00', '1910-10-05 03:01:02') You'll get this returned: Years Months Days Hours Minutes Seconds 10 9 4 3 1 2. Here is my trigger:. Follow. def num_days_in_year (date: pd. 1 Answer. Second parameter would be the last login time, which is already in the database. Try this one: select * from MyTab T where date_add (T. Learn more about CollectivesCurrently, my code just returns zero on the right side of the decimal place. CREATE procedure [dbo]. mySQL Server Layer. B) Using DATEDIFF() function with table column example. Using the sales. This function only calculates the date portion from each expression. The result what I want is 2 months and not 1 month or 1 month 14 days. Share. 7 Reference Manual :: 12. 48. SELECT log, TIMESTAMPDIFF(year, createddate, waitingtime) AS YearDiff, TIMESTAMPDIFF(month, createddate, waitingtime) AS. 5,730 21 21 gold badges 55 55 silver badges 71 71 bronze badges. Share. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. 5. 5 日付の計算. Alternatively, you can use TIMEDIFF (ts1, ts2) and then convert the time result to seconds with TIME_TO_SEC (). The query also selects rows with dates that lie in the future. The WHERE clause can be combined with AND, OR, and NOT operators. Each day is 1 integer. You can only store dates as numbers or text. Here, you'd like to get the difference in seconds, so choose second. Note: Periods are provided as two separate arguments, and they should be in YYMM or YYYMM format. 7, MySQL 5. SELECT log, TIMESTAMPDIFF(year, createddate, waitingtime) AS YearDiff, TIMESTAMPDIFF(month, createddate, waitingtime) AS. Use SQL DATEDIFF to return the difference between the two dates based on a specified date part. If the date is NULL, the YEAR () function returns NULL. Run SQL » Result: Click "Run SQL" to execute the SQL statement above. Application. DateGroup. It supports time series analysis by allowing you to calculate. For example, from 2/10/08 to 2/10/09 is considered one year, while 3/1/08 to 2/29/09 is considered zero years. 6. The TIMESTAMPDIFF function allows its arguments to have mixed types e. Note: You need to pass two date / datetime values along with the unit (eg, day, month, etc. The YEAR () function returns an integer that represents the year part of the provided date. Using your sample: SELECT CASE WHEN datediff (year, date_column, getdate ()) > 1 THEN datediff (year. The DAY () function is used to return the day of a month for a given date. MySQL transaction allows you to run multiple SQL statements step by step. In case you use a DATE value, the TIMESTAMPDIFF function treats it as a DATETIME value whose. firstdayofweek. Use this for legacy code (PHP < 5. It outputs the number of days between two dates. For learning how to use DATEDIFF in MySQL, go to its tutorial here. DATEDIFF: Returns the number of units (unit specified in Interval) between the input two dates. 1 Answer. I'm not sure exactly how R does it. MySQL Dates between Dates. DECLARE @Seconds INT = 50000000; --select @seconds = 896434 select [Running For] = CASE WHEN RADHE. Improve this answer. i've tried. In most cases, though, what you really want is the number of days from the first date to the second date. START TRANSACTION; --statement1 UPDATE bankaccounts SET funds=funds-100 WHERE accountno='ACC1'; --statement2 UPDATE bankaccounts SET funds=funds+100 WHERE accountno='ACC2'; --statement3 ROLLBACK; --statement4. The following example uses the DATEDIFF() function to compare the requested delivery date with the ship date in days and return if the order is on-time or late:. MySQL the TIMESTAMPDIFF () returns a value after subtracting a datetime expression from another. The DATEDIFF() function calculates the number of days. SELECT DATEDIFF ( CURDATE (), "2018-03-10" ); Both arguments are dates that you want to get the difference in terms of the number of days. Timestamp): return 366 if date. According to the manual: DATEDIFF (expr1, expr2) returns expr1 − expr2 expressed as a value in days from one date to the other. If you prefer short options, the command looks like this: $> mysql -u finley -p db_name. It is to be noted that periods are not date values. DATEDIFF() or BETWEEN for Date Ranges in SQL Queries. 1. Edit the SQL Statement, and click "Run SQL" to see the result. A date value is treated as a datetime with a default time part '00:00:00'. The TIMESTAMPDIFF function allows its arguments to have mixed types e. 1. MySQL provides several functions that you can use to perform calculations on dates, for example, to calculate ages or extract parts of dates. time2: The second TIME or. I need to get the difference between a definite time everyday say 12. DATEDIFF does not guarantee that the full number of the specified time units passed between 2 datetime values: -- Get difference in hours between 8:55 and 11:00 SELECT DATEDIFF (hh, '08:55', '11:00'); -- Returns 3 although only 2 hours and 5 minutes passed between times -- Get difference in months between Sep 30, 2011 and Nov 02, 2011. The DATE, DATETIME and TIMESTAMP datatypes in MySQL are used to store the date, date and time, time stamp values respectively. 3. Returns datetime_expr2 − datetime_expr1, where datetime_expr1 and datetime_expr2 are date or datetime expressions. May 2, 2022 at 13:19. If the terminated is a string the you must check for 'NULL' if is a date the you should check for is null. 2. Select datediff (max (hire), min (hire)) as Difference From Employees Where terminated = 'NULL'. Days. , begin is a DATE value and end is a DATETIME value. PERIOD_DIFF () function. DATEDIFF function accepts two input parameters i. MySQL Examples MySQL Examples MySQL Editor MySQL Quiz MySQL Exercises MySQL Certificate. YEARFRAC: Returns the year fractDATEDIFF Examples Using All Options. Edit the SQL Statement, and click "Run SQL" to see the result. MySQL TIMEDIFF() Function MySQL Functions. Most public APIs are compatible with mysqlclient and MySQLdb. 0. Naveen (NNK) is a Data Engineer with 20+ years of experience in transforming data into actionable insights.