In Oracle, the CONCAT()
function performs a string concatenation on its arguments. It returns the string that results from concatenating its arguments.
Concatenation is the operation of joining multiple strings end-to-end.
Continue readingIn Oracle, the CONCAT()
function performs a string concatenation on its arguments. It returns the string that results from concatenating its arguments.
Concatenation is the operation of joining multiple strings end-to-end.
Continue readingIn Oracle, the WIDTH_BUCKET()
function allows you to construct equiwidth histograms, in which the histogram range is divided into intervals that have identical size.
For a given expression, WIDTH_BUCKET()
returns the bucket number into which the value of this expression would fall after being evaluated.
Below is a list of the JSON functions available in MariaDB.
Continue readingIn Oracle Database, the TRUNC(number)
function returns a given number, truncated to a given number of decimal places.
Oracle also has a TRUNC(date)
function, which is used on dates. This article is solely about the TRUNC(number)
function, which is used on numbers.
In Oracle, the SIGN()
function returns the sign of its argument as -1
, 0
, or 1
, depending on whether the argument is negative, zero, or positive, and also depending on whether the argument is of type NUMBER
or a floating-point number.
In Oracle, the TANH()
function returns the hyperbolic tangent of its argument.
In Oracle, the TAN()
function returns the tangent of its argument, where the argument is an angle expressed in radians.
In Oracle, the NANVL()
function allows us to deal with NaN
values by specifying another number to return in its place.
The way it works is, it accepts two arguments. If the first argument is NaN
(not a number), it returns the second argument. If the first argument is a number, then it simply returns that number.
Note that this function is useful only for floating-point numbers of type BINARY_FLOAT
or BINARY_DOUBLE
.
In Oracle, the SQRT()
function returns the square root of its argument.
In Oracle, the REPLACE()
function allows you to replace a part of a string with another string.
The function accepts three arguments: the string, the substring to replace, and the replacement string (to replace the substring with).
You can omit the replacement string, in which case, the function will remove all instances of the substring.
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