How can I insert into a BLOB column from an insert statement in sqldeveloper?

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Is it possible to insert into a BLOB column in oracle using sqldeveloper?

i.e. something like:

insert into mytable(id, myblob) values (1,'some magic here');

Yes, it's possible, e.g. using the implicit conversion from RAW to BLOB:

insert into blob_fun values(1, hextoraw('453d7a34'));

453d7a34 is a string of hexadecimal values, which is first explicitly converted to the RAW data type and then inserted into the BLOB column. The result is a BLOB value of 4 bytes.

DDL and DML Statements with LOBs, INSERT INTO my_table VALUES ( 1, 'Roger', SYSDATE, 'the quick we can call it from the command line (Windows or Unix) using To get useful correct (and viewable!) output you will probably want to use SQL Developer to run the if our column is a binary BLOB column rather than a character CLOB. Same process as above, at least for the first four steps. After you have opened the blob editor, you should see a ‘View as Image’ check box on the top part of the form. Click on that and SQL Developer will display the BLOB data in picture form. A picture of The Blob stored as a BLOB. Have something other than a picture stored in that BLOB


To insert a VARCHAR2 into a BLOB column you can rely on the function utl_raw.cast_to_raw as next:

insert into mytable(id, myblob) values (1, utl_raw.cast_to_raw('some magic here'));

It will cast your input VARCHAR2 into RAW datatype without modifying its content, then it will insert the result into your BLOB column.

More details about the function utl_raw.cast_to_raw

Loading documents and other file data into the Oracle Database , The simplest way to insert a binary string into a BLOB column is to use a SQL INSERT statement and include the binary string a SQL binary  I have a simple table where I want to insert an image that exists on my machine.I would like to insert the picture into my table's BLOB column. Just wondering how can I do it. I understand that there are some existing solutions which are related to BLOB but none have helped me directly by using INSERT SYNTAX.


  1. insert into mytable(id, myblob) values (1,EMPTY_BLOB);
  2. SELECT * FROM mytable mt where mt.id=1 for update
  3. Click on the Lock icon to unlock for editing
  4. Click on the ... next to the BLOB to edit
  5. Select the appropriate tab and click open on the top left.
  6. Click OK and commit the changes.

Inserting BLOB Values With SQL INSERT Statements, This note describes steps to Load a Binary file into a BLOB Column of a table, and also SQL> insert into temp_bfile values ( bfilename('MYDIR','pic1.jpg'));. MYDIR is a directory object created with the CREATE DIRECTORY command. Oracle Gold Partner; Oracle Workforce Development Program; ISO 9001 Certified​  insert into mytable(id, myblob) values (1,EMPTY_BLOB); SELECT * FROM mytable mt where mt.id=1 for update; Click on the Lock icon to unlock for editing; Click on the next to the BLOB to edit; Select the appropriate tab and click open on the top left. Click OK and commit the changes.


How to Load File Content to a BLOB Field and Unload BLOB , The simplest way to insert a binary string into a BLOB column is to use a SQL Jan 10, 2020 · My name is Kehinde Adeyemi, An Oracle Development For a full description of the INSERT statement, see Oracle Database SQL Reference. My table has one clob column and one blob column. I need to insert data into it through insert statements. The length of data to be inserted is more than 4000 chars. When I do export of insert statements is sql navigator I get empty values. INSERT INTO mytable VALUES('REQUEST',EMPTY_CLOB(),EMPTY_BLOB());


Oracle apex insert into table, In Oracle, EMPTY_BLOB() function allows you to assign an empty value (with 0 length) Let's create a table with a BLOB column in Oracle and insert data: Note that if you try to insert '' (empty string constant) explicitly, the statement fails as  I am trying to insert an image into an BLOB field in a signatures which i will then select from the table and render on a report. I cannot seem to figure how to get the image into the table. I did an insert however when i render only the path to the image was shown on the report and not the image itself.


EMPTY_BLOB Function - Empty BLOB Value, In SQL, the limit is 4,000 characters. Using straight SQL like that, without a bind variable, you'll be limited to 4,000 characters. Steps to insert lob  There has to be another way to insert a file, into a blob column without the need to create a directory and without having to manually add it into the column through SQL Developer. I'm just unable to figure out what that way might be.