In Oracle, the SQRT()
function returns the square root of its argument.
Tag: what is
REPLACE() Function in Oracle
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.
Continue readingLOWER() Function in Oracle
In Oracle, the LOWER()
function returns its argument with all letters in lowercase.
UPPER() Function in Oracle
In Oracle, the UPPER()
function returns its argument with all letters in uppercase.
NLS_INITCAP() Function in Oracle
In Oracle, the NLS_INITCAP()
function returns its argument with the first letter of each word in uppercase, and all other letters in lowercase.
However, the actual capitalisation will depend on the collation being used. For example, it could result in more than the first letter being capitalised.
It’s similar to the INITCAP()
function, except that it accepts a second argument that allows you to specify the collation. The collation handles special linguistic requirements for case conversions.Â
INITCAP() Function in Oracle
In Oracle, the INITCAP()
function returns its argument with the first letter of each word in uppercase, and all other letters in lowercase.
For special linguistic requirements for case conversions, you may want to try the NLS_INITCAP()
function instead.
NCHR() Function in Oracle
In Oracle, the NCHR()
function returns the character having the binary equivalent to its argument in the national character set.
It’s the equivalent of using the CHR()
function with the USING
 NCHAR_CS
argument.
CHR() Function in Oracle
In Oracle, the CHR()
function returns a character based on the code values provided as an argument.
More specifically, it returns the character having the binary equivalent to its argument as a VARCHAR2
value in either the database character set or, if you specify USING
NCHAR_CS
, the national character set.
TRIM() Function in Oracle
In Oracle, the TRIM()
function allows you to trim characters from the sides of a string.
You can trim leading characters, trailing characters, or both.
By default, it trims white space, but you can optionally specify a different character or characters to trim.
Continue readingLTRIM() Function in Oracle
In Oracle, the LTRIM()
function allows you to trim the left part of a string. By default, it trims white space, but you can optionally specify a different character or characters to trim.