RAWTOHEX Function in PL/SQL

The objective is to use the function RAWTOHEX in PL/SQL code. Purpose : This inbuilt function is beneficial for the conversion of a raw value into a character value in its hexadecimal format. Syntax :

RAWTOHEX(x) 

where x - raw value to be converted to hexadecimal value and hexadecimal equivalent in the form of a string value is returned. Here may be a simple procedure to demonstrate the usage of the function - Example-1: Storing the hexadecimal converted value in a variable 'random'.

CREATE PROCEDURE TEST_RAW2HEX
IS
 random varchar2(20);
BEGIN
 SELECT RAWTOHEX('JAVA') INTO random FROM dual;
 dbms_output.put_line('random = ' || random);
EXCEPTION
WHEN OTHERS
THEN
 dbms_output.put_line(Exception occurred.)
END TEST_RAW2HEX;

When the procedure is created, and it is run using the SQL script -

BEGIN
 TEST_RAW2HEX;
END;

We get the output as -

random = 5859 

This function accepts argument of any data type other than LONG, LONG RAW, CLOB, BLOB, or BFILE. Here we see another example of a procedure for the function demonstration. Example-2: Storing the hexadecimal converted values in variables 'random_1' & 'random_2'.

CREATE PROCEDURE TEST1_RAW2HEX
IS
random_1 varchar2(12);
random_2 varchar2(12);
BEGIN
 SELECT RAWTOHEX('JAVA') INTO random_1 FROM dual;
 SELECT RAWTOHEX('CPP') INTO random_2 FROM dual;

 dbms_output.put_line('random_1 = ' || random_1);
 dbms_output.put_line('random_2 = ' || random_2);
END TEST1_RAW2HEX;

When the procedure is created, and it is run using the SQL script -

BEGIN
 TEST1_RAW2HEX;
END;

We get the output as -

random_1 = 4A415641
random_2 = 435050