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.
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.
RTRIM() Function in Oracle
In Oracle, the RTRIM() function allows you to trim the right part of a string. By default, it trims white space, but you can optionally specify a different character or characters to trim.
SET SQLBLANKLINES: How to Allow Blank Lines in SQLcl & SQL*Plus
If you’re trying to run a multi-line query in SQLcl or SQL*Plus, and you keep getting an error such as “Unknown Command”, but running it in SQL Developer causes no such error, maybe this post will help.
By default, SQLcl and SQL*Plus don’t allow blank lines in SQL statements. However, you can change this with the SET SQLBLANKLINES command.