Use update statement to change the value in blob type column : BLOB « Large Objects « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Large Objects » BLOB

34. 3. 4. Use update statement to change the value in blob type column


SQL>

SQL> create table demo

  2  ( id           int primary key,

  3    theBlob      blob

  4  )

  5  /



Table created.



SQL>

SQL>

SQL> update demo  set theBlob = 'Hello World'

  2  where id = 1

  3  /



0 rows updated.



SQL>

SQL>

SQL>

SQL> drop table demo;



Table dropped.

34. 3. BLOB
	34. 3. 1.	Creating Tables Containing BLOB Objects
	34. 3. 2.	Initialize BLOB column data
	34. 3. 3.	Adding Content to a BLOB
	34. 3. 4.	Use update statement to change the value in blob type column
	34. 3. 5.	UPDATE sets blob_column to a binary number:
	34. 3. 6.	Open the BLOB
	34. 3. 7.	Loading a page to a BLOB
	34. 3. 8.	Populating a BLOB column from an external BFILE
	34. 3. 9.	INSERT a row with an empty blob
	34. 3. 10.	Display the length of the BLOB
	34. 3. 11.	Obtain length of the populated BLOB
	34. 3. 12.	Close the BLOB

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