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Oracle: SQL Loader example: Load binary data (blob)
This example tries to demonstrate how binary data (images) can be loaded into a
blob.
Creating the table
A table with a blob is created:
create table tq84_sql_loader_blob (
filename varchar2(20),
author varchar2(16),
url varchar2(80),
image blob
);
File list
The following file contains the file-names of the images to be loaded and some additional information that will also go into the destination table.
Binary-code.jpg|Christiaan Colen|https://ccsearch.creativecommons.org/photos/f63dd034-4de4-49c8-a500-270aedec50c5
Eschenbergturm.jpg|Nouhailler|https://ccsearch.creativecommons.org/photos/bb7d21fe-40de-46cb-a6e1-02df76cfa15a
Oracle-Buildings.jpg|Otto Gelderman|https://ccsearch.creativecommons.org/photos/53cbf2b7-0bc2-427a-abc3-cbf0413d9abb
Control (ctl) file
The
control file, used by SQL*Loader, to load the data into the table.
load data
infile 'file-index.dat'
into table tq84_sql_loader_blob
fields terminated by '|'
(
filename char(20),
author char(16),
url char(80),
image lobfile(filename) terminated by eof
)
Loading the data
The data load is triggered on a command line with something like
sqlldr control=load.ctl userid=rene/rene