In MySQL, the STDDEV_POP() function returns the population standard deviation of a given expression.
There’s also a STD() and STDDEV() function, both of which do the same thing as STDDEV_POP().
Tag: functions
Overview of the STDDEV() Function in MySQL
In MySQL, the STDDEV() function returns the population standard deviation of a given expression.
STDDEV() is a synonym for the standard SQL function STDDEV_POP(). There’s also a STD() function which also does the same thing, so we can use either of these functions to get the same result.
Introduction to the STD() Function in MySQL
In MySQL, the STD() function returns the population standard deviation of a given expression.
STD() is a synonym for the standard SQL function STDDEV_POP(). There’s also a STDDEV() function which also does the same thing, so we can use either of these functions to get the same result.
Understanding the BIT_XOR() Function in MySQL
In MySQL, the BIT_XOR() function returns the bitwise XOR of all bits in a given expression.
XOR is an exclusive OR, and so a XOR b is mathematically equal to (a AND (NOT b)) OR ((NOT a) and b).
Understanding the BIT_OR() Function in MySQL
In MySQL, the BIT_OR() function returns the bitwise OR of all bits in a given expression.
Understanding the BIT_AND() Function in MySQL
In MySQL, the BIT_AND() function returns the bitwise AND of all bits in a given expression.
10 Functions that Modify JSON Values in MySQL
MySQL provides us with a bunch of functions that can modify JSON values. Here are ten functions that we can use to modify JSON values in MySQL.
Continue reading7 Functions that Create JSON Values in MySQL
MySQL includes some inbuilt functions that can be used to create JSON values, such as JSON arrays, JSON objects, or a quoted string literal.
Here are seven functions that allow us to create JSON values in MySQL.
Continue readingMySQL JSON Functions & Operators
Below is a list of the JSON functions and operators available in MySQL.
Continue readingUnderstanding the JSON_SCHEMA_VALIDATION_REPORT() Function in MySQL
In MySQL, the JSON_SCHEMA_VALIDATION_REPORT() function validates a JSON document against a JSON schema and returns a report of the outcome of that validation. The report is returned as a JSON document.
If the document is valid, only one field is returned: "valid" : true. If the document is not valid, a more extensive report is provided.