How to find the size of the downloaded image on a column of type blob in a table?

Similar Questions

• How to insert a pdf or jpeg image into a column of type blob of a table

  How to insert a pdf or jpeg image into a column of type blob of a table

  Hello
  Try this

  Loading an image into a BLOB column and showing through OAS
  -------------------------------------------------------------

  The steps are:

  Step 1.
  -------

  Create a table to store BLOBs:

  create BLOB table objects
  (id VARCHAR2 (255),)
  blob_col blob
  );

  Step 2.
  -------

  Create a logical directory in the database to the physical file system:

  create or replace the MY_FILES directory as "c:\images";

  Step 3.
  -------

  Create a procedure to load the BLOB from the file system by using the logic
  Directory. Gif 'aria.gif' must exist in c:\images.

  create or replace procedure insert_img as
  f_lob bfile.
  b_lob blob.
  Start
  insert into BLOB ("MyGif", empty_blob()) values
  return blob_col in b_lob;

  f_lob: = bfilename ("MY_FILES', 'aria.gif');
  DBMS_LOB. FileOpen (f_lob, dbms_lob.file_readonly);
  DBMS_LOB. LoadFromFile (b_lob, f_lob, dbms_lob.getlength (f_lob));
  DBMS_LOB. FileClose (f_lob);
  commit;
  end;
  /

  Step 4.
  -------

  Create a procedure that is called via Oracle Application Server to display the
  image.

  create or replace procedure get_img as
  vblob blob.
  raw buffer (32000);
  buffer_size integer: = 32000;
  offset of an integer: = 1;
  length of number;
  Start
  owa_util.mime_header('image/gif');
  Select blob_col from vblob of blobs where id = 'MyGif. "
  Length: = dbms_lob.getlength (vblob);
  While offset< length="">
  DBMS_LOB. Read (vblob, buffer_size, offset, buffer);
  HTP. PRN (utl_raw.cast_to_varchar2 (buffer));
  offset: = offset + buffer_size;
  end loop;
  exception
  while others then
  HTP.p (SQLERRM);
  end;
  /

  Step 5.
  -------

  Use the PL/SQL cartridge to call the get_img procedure

  OR

  Create this procedure in function and call it your PL/SQL code for
  correctly place the images on your HTML page through the PL/SQL Toolbox.

  from a html form

  1. create an HTML form where the image will be. You too
  need the file MIME type.
  2. create a procedure receives the form parameters. The file field will be a Varchar2
  parameter, because you receive the path of the image is not the image itself.
  3 insert the image file into the table by using 'Create a directory NAME as chemin_image' and
  Then use ' insert into the TABLE (row, BLOB_OBJECT, MIME_OBJECT) values (sequence.nextval, '.
  EMPTY_BLOB() 'GIF' or 'JPEG') BLOB_OBJECT, in the variable_blob, back
  variable_consecutive.
  4 load the file into the table using:
  DBMS_LOB. LoadFromFile (variable_blob, variable_file_name, dbms_lob.getlength (variable_file_name));
  DBMS_LOB. FileClose (variable_file_name);
  engage.

  Kind regards
  Simma...

• I need to know how to find the download for windows XP Service Pack 3 to put on my computer

  I have a dell laptop inspiron 1000 with windows xp service pack 2 installed and I can't find a download for windows xp service pack 3 other than the iso image on microsoft.com, I have in the past found service pack 3, my laptop, will not let me use windows update can anyone please let me know how I can fix this so I can update my computer by windowsupdate or another method Thank you.

  Patrick,

  Please see the thread below for a possible solution:

  http://answers.Microsoft.com/en-us/Windows/Forum/windows_xp-windows_update/cant-download-SP3/a71b55ee-10d4-410C-8b0b-a2114f7d8b94 >>

  UTC/GMT is 20:30 on Sunday, August 19, 2012

• How to find the value duplicate of each column.

  I have it here are four columns,
  How can I find the duplicate of each columns value.
  
  with All_files like)
  Select ' 1000 'like BILL, "2000" AS DELIVERYNOTE, CANDELINVOICE ' 3000', '4000' CANDELIVERYNOTE of all union double
  Select ' 5000 ', ' 6000', ' 7000 ', ' 8000' Union double all the
  Select '9000 ', '1000', '1100',' 1200' from dual union all
  Select ' 1200 ', ' 3400', ' 6700 ', ' 8790' Union double all the
  Select ' 1000 ', ' 2000', ' 3000 ', ' 9000' Union double all the
  Select '1230', '2340', ' 3450 ', ' 4560' double
  )
  SELECT * from All_files
  
  
  Output should be as shown below.
  
  1000 2000 3000 4000
  9000 1000 1100 1200
  1200 3400 6700 8790
  1000 2000 3000 9000
  
  Required to check uniqueness columns.
  
  Thank you.

  Hello

  If you are not too concerned about performance, this should give you the desired result:

  SELECT distinct INVOICE, DELIVERYNOTE, CANDELINVOICE, CANDELIVERYNOTE
  FROM (
    SELECT a.*,
           count(*) over(partition by t.column_value) cnt
    FROM All_files a,
         table(
           sys.odcivarchar2list( a.INVOICE
                               , a.DELIVERYNOTE
                               , a.CANDELINVOICE
                               , a.CANDELIVERYNOTE ) ) t
  )
  WHERE cnt > 1
  ;
  

• How to find the way to rows and columns of matrix

  Hello everyone

  I have a matrix N * M with some of the elements with only 0 and 1.

  has every element that is 1 (line, column).

  I want to find the elments 1 and find the way to lines which is 1, and also the average columns.

  Thank you very much

  my email: [email protected]

  
  

• How to find the 'missing' images easily in LR 3?

  In the beginning (I'm a technoidiot), I made some mistakes and stored images in 3 places.  To try to consolidate, I moved files and now some of the images "be found" by LR.  I am currently looking looking up the number of the image one at a time.

  In the library module, look at the on the left side.

  See all "missing files"?

  If so, just find the file to LR and all images of thhe in this folder will be re-found, too.

  If you don't have missing files and you need images, then you can always follow these steps:

  Right-click on the folder (in Control Panel folder) and click on "synchronize the folder. LR then check the file and images that are not in the record of exit and re - import those that you put in this folder.

  You can also do this with your parent folder and Sub folders will be synchronized.

  And don't forget: If you want to move pictures or folders around, always do go in LR (drag / move). This way above any change syou stay LR will do.

  WW

• Store an Image in the column of type BLOB of a Table

  It is about saving an Image file, a temp_photo table.
  
  UNDER LINUX, I created the Directory object.
  Step # 1
  SQL > create directory MSGS3 as ' / home/HD/om4000/I_MESSAGES ";
  Created directory.
  
  Step 2: set up the temp_photo Table.
  
  SQL > create table temp_photo
  (
  ID NUMBER (3) NOT NULL,
  PHOTO_NAME VARCHAR2 (50).
  PHOTO BLOB
  );
  Table created.
  
  Step: 3 this is the procedure that I have created to load the file from the file system of the database.
  
  create or replace PROCEDURE load_file)
  number of P_ID,
  p_photo_name in varchar2) IS
  src_file BFILE.
  dst_file BLOB;
  lgh_file directory.
  BEGIN
  src_file: = bfilename ('MSGS3', p_photo_name);
  -Insert a NULL record to lock
  INSERT INTO temp_photo
  (id, photo_name, photo)
  VALUES
  (p_id, p_photo_name, EMPTY_BLOB())
  RETURN photo INTO dst_file;
  -lock the folder
  SELECT photo
  IN dst_file
  OF temp_photo
  ID WHERE p_id =
  AND photo_name = p_photo_name
  UPDATE;
  -Open the file
  DBMS_LOB. FileOpen (src_file, dbms_lob.file_readonly);
  -determine the length
  lgh_file: = dbms_lob.getlength (src_file);
  -Read the file
  DBMS_LOB. LoadFromFile (dst_file, src_file, lgh_file);
  -update the blob field
  UPDATE temp_photo
  Photo SET dst_file =
  ID WHERE p_id =
  AND photo_name = p_photo_name;
  -close file
  DBMS_LOB. FileClose (src_file);
  END load_file;
  /
  
  
  Step 4: when I test it by running the procedure in the following assistance:
  SQL > execute load_file (1, 'Omega5000.jpg');
  
  I get the following error:
  
  Error from line 5 in order:
  run load_file(1,'Omega5000.gif')
  Error report:
  ORA-22288: file or LOB FILEOPEN operation failed
  No such file or directory
  ORA-06512: at "SYS." DBMS_LOB", line 805
  ORA-06512: at "HD. Load_file", line 23
  ORA-06512: at line 1
  22288 00000 - "file or LOB operation %s failed\n%s".
  * Cause: Failure of the attempted operation on the file or the LOB.
  * Action: See the following error message in the more detailed error stack
  information. In addition, make sure that the file or LOB exists and that
  privileges are set for the specified operation. If
  the error continues, report the error to the user DBA.
  
  He said: no such file or directory, but I double checked that the file is located in the same directory and directory is it physically (for which I created the above directory object.)
  Can someone help me where I'm doing something wrong. This is the first time I use the BLOB in my table. Can anyone suggest what's not here.

  >
  He said: no such file or directory, but I double checked that the file is located in the same directory and directory is it physically (for which I created the above directory object.)
  >
  Oracle is disagreeing with you.

  Post your proof that the file exists in the path you provided.

  See this example Oracle-base
  http://www.Oracle-base.com/articles/Misc/HTML-with-embedded-images-from-plsql.php
  >
  CONN / AS SYSDBA
  CREATE or REPLACE DIRECTORY of images AS "/ host /";
  GRANT READ, WRITE on DIRECTORY images TO test;
  >
  Write down everything you missed? Tip: Look at the last character of the DIRECTORY string. Second Tip: See the grant?

  SQL>create directory MSGS3 as '/home/mh/om4000/I_MESSAGES' ;
  

• How to find the middle name of any column NAME

  I wrote under request

  why this market not could you please help me?

  Select substr (ename, instr (ename,' ', 1, 1), instr (ename, ' ', 1.2)) of e1

  InStr, primary function must return the first position of the space and

  2 nd instr, function should return 2nd space

  so we can specify in substr function to extract the form position of string from this place to that place

  It would be very useful that you explain the reason

  Best regards

  Prem kumar

  Select

  -case when length (substr (ename, instr (ename,' ', 1.2))) = length (ename) then

  (case when length (substr (name, instr (ename,' ', 1.1))) = length (ename) then null)

  of another substr (ename, instr (ename,' ', 1, 1) + 1) end)

  of another substr (ename, instr (ename,' ', 1, 1) + 1, instr(ename,' ',1,2)-instr(ename,' ',1,1)-1)

  end middle_name

  of e1;

  Select

  -case when length (substr (ename, instr (ename,' ', 1.2))) = length (ename) then

  (case when length (substr (ename, instr (ename,' ', 1.1))) = length (ename) then null)

  of another substr (ename, instr (ename,' ', 1, 1) + 1) end)

  of another substr (ename, instr (ename,' ', 1, 1) + 1, instr(ename,' ',1,2)-instr(ename,' ',1,1)-1)

  end middle_name

  from (select 'asw nag raj' ename of double)

  Union

  Select "raj asw ght" double

  Union

  Select 'raj asw dfjadf Tom' from dual) e1;

• How to find the locaion of a particular column in a database

  Hi experts,
  
  I have the column name x. I want to know under what table it is present.
  
  
  What may be the syntx for sql.
  
  Thank you
  V

  select owner,table_name
  from all_tab_columns
  where column_name = 'XXX'
  /
  

  where XXX is the column name, looking for

• Camera: Find the last image?

  Hello

  Are there examples of how to find the last image taken after invoking the camera?

  Thank you

  Hi and welcome to the forums!

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  Return to the back and you want to know where they are stored as you pull?

  Go to the media and click the photos, as soon as the images are displayed

  Highlight it, click menu, properties. It will show you, device, media and file

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  You can set the previous directory. Unit > menu button > options.

  Here you can set options for the camera with flash, color, size, and storage in the

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  Bifocals

• says that there is an update of firmware available for my 3 t time capsule. I get "an error occurred when downloading". How to find the problem?

  I said that there is an update of the firmware available for my 3 t time capsule. I get the message "an error occurred when downloading". How to find the problem? I have elcapitan 10.11.6 and capsule version 7.7.3

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• How to find the size of the virtual server?

  Hello

  We intend to pass our applications 4 virtual servers has 2 physical servers. In this process, we need to identify the size of the current virtual servers to use as a starting point to configure or add the size in physical server. can anyone provide information on whats stats to be noticed and how to find the size of the current virtual servers?

  Thank you

  Hi Sekhar, there.

  in general, it is a fairly complex task if you want to size the new platform correctly, i.e. not to oversize it and have very low use below, i.e. spend too much on equipment.

  In fact, it's the first thing to consider the level of use of the new platform. Most likely your organization (HW and infrastructure) has targets to a minimum. optimal and maximum usage levels.

  In the case where you do not have this as a starting point, and then you continue with load average and the current peak (CPU, RAM, NW). To these basic lines, you can use the statistics of WLS Admin Console, where the use of CPU and memory statistics are presented since the server was last started. For more detailed statistics, you can use WLDF to capture measures key at regular intervals, and then base your analysis of these data.

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• How can I find the download for CS4 Web Standard?

  How can I find the download for CS4 Web Standard?

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  Download Adobe Creative Suite 4 products refer

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• How to find the size of the table?

  Hi all

  Can anyone suggest how to find the size of the table? I had a few (15272 selected lines) on the name of "CMPT_" How can I check only 'CMPT_' size tables?

  
  

  
  

  
  

  
  

  Please someone help give the SQL query to run.

  
  

  Thanks in advance.

  
  

  Vincent
  

  madala03 wrote:

  Hi thanks for the reply

  I'm out like below

  SUM(BYTES/1024/1024)

  --------------------

  25383.25

  But how to check all the name of tables CMPT and their sizes?

  Select nom_segment, dba_Segments sum(bytes/1024/1024) where nom_segment like ' % CMPT GROUP BY nom_segment;

• How to find the size of the semantic model

  Hi all
  
  Please can you tell me how to find the size of the semantic model.
  
  Thank you
  INDU

  Hi Indu,

  A couple of several things:

  1 we still need an application, in order to account for the storage of the Table in the Application

  This query gives you the name of application table

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  where model_name = '';

  This will give you the size in MB

  Select semmodel.table_name, dbaseg.bytes/1024/1024 MB
  of mdsys.sem_model$ semmodel, dba_segments dbaseg
  where semmodel.table_name = dbaseg.segment_name
  and semmodel.model_name = '';

  2. If the model is the only one of the semantic network, you can get the space used by the table of $ RDF_VALUE using this query

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  If there are several models, this space is shared between all of them.

  Kind regards!
  Jorge