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In Oracle RTRIM  function removes all the rightmost characters matching string from  Characters. The syntax for the  RTRIM function is: RTRIM (character,Removing String) For Example: SELECT RTRIM (' FOREST ',' EST ') FROM DUAL; Result : FOR

In Oracle LTRIM  function removes all the characters matching string from the left side of Characters. The syntax for the  LTRIM function is: LTRIM (character,Removing String) For Example: SELECT LTRIM (' FOREST ',' FOR ') FROM DUAL; Result : EST

In Oracle, RPAD function pads the right-side of a string with a specific set of characters.The syntax for the RPAD function is: RPAD( string1, padded_length, [ pad_string ] ). For Example SELECT RPAD (' SHAHEER ',12,*****) FROM DUAL; RESULT: SHAHEER*****

In Oracle, LPAD function pads the left side of a string with a specific set of characters. The syntax for the LPAD function is: LPAD ( string1, padded_length, [ pad_string ] ). For example SELECT LPAD (' SHAHEER ',12,'*****') FROM DUAL; RESULT: *****SHAHEER

In Oracle,  UPPER function converts all letters in the specified string to uppercase. The syntax for the  UPPER function is:  UPPER (string). For Example SELECT UPPER (' shaheer ') FROM DUAL; RESULT : SHAHEER

In Oracle, LOWER function converts all letters in the specified string to lowercase. The syntax for the LOWER function is : LOWER (string). For Example SELECT LOWER (' SHAHEER ') FROM DUAL; RESULT : shaheer

In Oracle, LENGTH function returns the length of the specified string.The syntax for the LENGTH function is: LENGTH ( string ) For Example SELECT LENGTH (' SHAHEER ') FROM DUAL RESULT: 7

In Oracle INITCAP function sets the first character in each word to uppercase and the rest to lowercase. The syntax for the INITCAP function is: INITCAP (string). For Example SELECT INITCAP (' SHAHEER' ) FROM DUAL; Result: Shaheer

In oracle the CONCAT function allows you to concatenate two strings together. The syntax for the CONCAT function is: CONCAT (CHAR1，CHAR2) For Example SELECT CONCAT (' SHAHEER ',' BADAR ') "RESULT" FROM DUAL;

In Oracle CHR returns the character having the binary equivalent to n as a VARCHAR2 value in either the database character set or, if you specify USING NCHAR_CS , the national character set. This function takes as an argument a NUMBER value, or any value that can be implicitly converted to NUMBER , and returns a character. The syntax for the CHR function is:   CHR(N) For Example: SELECT CHR(83) FROM DUAL; RESULT: S SELECT CHAR(115) FROM DUAL; RESULT: s

In Oracle PL/SQL, the ASCII function returns the NUMBER code that represents the specified character. The syntax for the ASCII function is: ASCII( single_character ) Example SELECT ASCII ( 'SHAHEER' ) FROM DUAL;     ASCII(CHAR)

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