BLOB column datatype

Question

Hi
I have one column which is of datatype BLOB.File was there in the blob column. File Contains the XML tags.My Requirement is need to extract the tag value.
EX:in XLM i need to extract <name>Rajesh</name>
Bottom line is Need to extract one tag value from BLOB dataype column which contains the file in which XML tags were there.
Plz Help

Answer 1

user12057782 wrote:
Hi
I have one column which is of datatype BLOB.File was there in the blob column. File Contains the XML tags.My Requirement is need to extract the tag value.
EX:in XLM i need to extract <name>Rajesh</name> That's not good. BLOB should store binary data. CLOB should store character based data. XML is character based, so you could end up corrupting the XML by storing it in a BLOB.
Oracle also has an XMLTYPE datatype specifically for storing XML data in, so why aren't you using that?
Bottom line is Need to extract one tag value from BLOB dataype column which contains the file in which XML tags were there.Here's a basic example of extracting XML from an XMLTYPE (you can easily convert CLOB to XMLTYPE using it's constructor method)...
SQL> ed
Wrote file afiedt.buf
  1  with t as (select XMLTYPE('<cube>
  2                                <dimension>
  3                                   <sourcename>A1</sourcename>
  4                                   <targetname>X1</targetname>
  5                                </dimension>
  6                                <dimension>
  7                                   <sourcename>B1</sourcename>
  8                                   <targetname>Y1</targetname>
  9                                </dimension>
10                                <dimension>
11                                   <sourcename>C1</sourcename>
12                                   <targetname>Z1</targetname>
13                                </dimension>
14                             </cube>
15                           ') as xml
16             from dual
17            )
18  -- end of test data
19  select x.*
20  from t
21      ,XMLTABLE('/cube/dimension'
22                PASSING t.xml
23                COLUMNS sourcename VARCHAR2(2) PATH '/dimension/sourcename'
24*                      ,targetname VARCHAR2(2) PATH '/dimension/targetname') x
SQL> /
SO TA
A1 X1
B1 Y1
C1 Z1
SQL>If that isn't quite what you want, provide more information with your database version, example data and expected output, as detailed in the FAQ: {message:id=9360002}
I'm surprised that as a member who's been here for 3 years+ and asked 32 questions, you still haven't understood how to ask a question so that people can help you. Perhaps that explains why you still have 27 question showing as unanswered.