utl_raw.cast_to_raw : utl_raw « System Packages « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. System Packages
3. utl_raw

SQL>
SQL> create table demo
  2  ( id           int primary key,
  3    theBlob      blob
  4  )
  5  /

Table created.

SQL> update demo set theBlob = utl_raw.cast_to_raw('Hello World') where id = 1
  2  /

0 rows updated.

SQL> drop table demo;

Table dropped.