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Oracle® Database SQL Language Reference
11g Release 2 (11.2)

Part Number E17118-03
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REFTOHEX

Syntax

Description of reftohex.gif follows
Description of the illustration reftohex.gif

Purpose

REFTOHEX converts argument expr to a character value containing its hexadecimal equivalent. expr must return a REF.

Examples

The sample schema oe contains a warehouse_typ. The following example builds on that type to illustrate how to convert the REF value of a column to a character value containing its hexadecimal equivalent:

CREATE TABLE warehouse_table OF warehouse_typ
   (PRIMARY KEY (warehouse_id));

CREATE TABLE location_table
   (location_number NUMBER, building REF warehouse_typ 
   SCOPE IS warehouse_table);

INSERT INTO warehouse_table VALUES (1, 'Downtown', 99);

INSERT INTO location_table SELECT 10, REF(w) FROM warehouse_table w;

SELECT REFTOHEX(building) FROM location_table;

REFTOHEX(BUILDING)
--------------------------------------------------------------------------
0000220208859B5E9255C31760E034080020825436859B5E9255C21760E034080020825436