Battle of external table: files that contain only a picture
Hello
Does anyone know if this is possible: use an external table to load files that each contain only one photo (photo) in a BLOB column?
So: just a photo, not other columns and not many lines.
I tried, in the sense of this article: ORACLE-DATABASE external Tables containing LOB -
I'm starting to believe it is not possible due to the "delimited records by ' and 'fields terminated by' clauses, which are not really applicable given files (just a picture), but maybe (hopefully), I'm wrong.
Any pointer is more than welcome!
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
AMT for HP - UX: release 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
5 selected lines.
SQL > drop table photo_ext is serving;
Deleted table.
SQL > create table photo_ext
2 (blob_content blob
3 )
4 external organization
5 (type oracle_loader
6 default directory tmp
7 access settings
8 (records delimited by newline
9 nobadfile
10 nologfile
11 fields completed by «,»
12 field missing values are null
(13)
14 blob_filename tank (100)
15)
16 transformations column (lobfile (blob_filename) of the blob (tmp) blob_content)
17)
18 rental
19 ("54618645837_vp3.jpg",
20 "54618645837_vp4.jpg."
21 "54618645837_vp2.jpg."
22 "54618645837_vp1.jpg."
23 "54618645837.jpg."
24 "54618636860_vp6.jpg."
25 "54618636860_vp5.jpg."
26 "54618636860_vp4.jpg."
27 "54618636860_vp3.jpg."
28 '54618636860_vp2.jpg '.
29 )
30)
31 reject limit unlimited;
Table created.
SQL > select DBMS_LOB.getlength (blob_content) AS blob_length of photo_ext;
Select DBMS_LOB.getlength (blob_content) AS photo_ext blob_length
*
ERROR on line 1:
ORA-29913: error in executing ODCIEXTTABLEFETCH legend
ORA-29400: data cartridge error
KUP-04001: doing bij openen van bestand/tmp /.
ORA-06512: at "SYS." ORACLE_LOADER', line 52
You need for your names to jpg files in a text file, the name of one file per line in the list, then use the name of the text file as your location in your outer table. In the example below, I've listed just a jpg file bridge.jpg in text file test.dat.
Scott@orcl12c > host type test.dat
Bridge.jpg
Scott@orcl12c > create or replace directory tmp as 'c:\my_oracle_files '.
2.
Created directory.
Scott@orcl12c > create table photo_ext
2 (blob_content blob)
3 the external organization
4 (type oracle_loader
5 by default directory tmp
6 access settings
7 (records delimited by newline
8 nobadfile
9 nologfile
10 fields completed by «,»
11 lack of field values are null
12 (blob_filename tank (100))
13 column transformations
14 (lobfile (blob_filename) of the blob (tmp) blob_content))
15 rental ("test.dat"))
release limit 16 unlimited
17.
Table created.
Scott@orcl12c > select DBMS_LOB.getlength (blob_content) AS photo_ext blob_length
2.
BLOB_LENGTH
-----------
511500
1 selected line.
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