PI() - Value of PI, π

Q

How to get the value of PI, π, using the PI() function?

✍: FYIcenter.com

A

PI() is a MySQL built-in function that returns the value of PI, π, For example:

SELECT PI();
  -- +----------+
  -- | PI()     |
  -- +----------+
  -- | 3.141593 |
  -- +----------+

Reference information of the PI() function:

PI(): val
  Returns the remainder of X divided by Y.

Arguments, return value and availability:
  val: Return value. The value of PI, π.
  Available since MySQL 4.0.

⇒ POW() - X Raised to Power of Y

⇐ MOD() - Remainder of X divided by Y

⇑ MySQL Functions on Numeric Values

⇑⇑ MySQL Function References

2023-11-14, 243🔥, 0💬

MySQL Function References
Where to find reference information and tutorials on MySQL database functions? I want to know how to use SUBSTRING(), ABS(), DATEDIFF(), and other MySQL functions. Here is a collection of reference information and tutorials on MySQL database functions compiled by FYIcenter.com DBA team. Calling MySQ... 2023-11-18, 1253🔥, 0💬

MS SQL Server DBA Checklist - General DBA Best Practices
-- Join (or start) a local SQL Server users group -- Attend at least one professional conference each year. -- Attend at least one training session each year. -- Read at least four books on SQL Server each year. -- Read the free e-book, How to Become an Exceptional DBA -- Learn everything you can ab... 2022-01-24, 1237🔥, 0💬

TRUNCATE() - Truncating to Decimal Place
How to truncate a value to a given decimal place using the TRUNCATE() function? TRUNCATE(X, D) is a MySQL built-in function that truncates X to decimal place of D. For example: SELECT TRUNCATE(-1.58, 0), TRUNCATE(23.298, 1), TRUNCATE(23.298, -1); -- +--------------------+-------- -------------+------... 2023-11-14, 346🔥, 0💬

SUM() - Total Value in Group
How to calculate the total value of a field expression in result set groups using the SUM() function? SUM(expr) is a MySQL built-in aggregate function that calculates the total value of a field expression in result set groups. For example: SELECT help_category_id, SUM(help_topic_id), COUNT(help_topi... 2023-12-01, 339🔥, 0💬

YEARWEEK() - Year Week Combination
How to calculate the year week combination from a given date using the YEARWEEK() function? YEARWEEK(date, mode) is a MySQL built-in function that calculates the year week combination from a given date. For example: SELECT YEARWEEK('2024-03-04'), WEEK('2024-03-04'); -- +------------------------+---- ... 2023-11-16, 324🔥, 0💬

MySQL Functions on Character String Values
Where to find reference information and tutorials on MySQL database functions on string values? I want to know how to use SUBSTRING(), REPLACE() and other character string related functions. Here is a collection of reference information and tutorials on MySQL database functions on string values comp... 2023-11-10, 321🔥, 0💬

VAR_POP() - Population Standard Variance
How to calculate the population standard variance of a field expression in result set groups using the VAR_POP() function? VAR_POP(expr) is a MySQL built-in aggregate function that calculates the population standard variance of a field expression in result set groups. For example: SELECT help_catego... 2023-12-01, 317🔥, 0💬

SQRT() - Square Root of X
How to calculate the square root of a given number using the SQRT() function? SQRT(X) is a MySQL built-in function that calculates the square root of a given number. For example: SELECT SQRT(2), SQRT(4), SQRT(8); -- +--------------------+-------- -+--------------------+-- | SQRT(2) | SQRT(4) | SQRT(... 2023-11-14, 315🔥, 0💬

UPPER() - Convert String to Upper Case
How to convert a string to upper case using the UPPER() function? UPPER(str) is a MySQL built-in function that converts all characters of a given into upper case characters. For example: SET @str = 'dba.FYIcenter.com'; SELECT UPPER(@str); -- +-------------------+ -- | UPPER(@str) | -- +-------------... 2023-11-13, 298🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.