EMPTY_BLOB
EMPTY_BLOB is an Oracle built-in function that initializes an empty BLOB (Binary Large OBject) locator for temporary use in SQL statements.
EMPTY_BLOB() RETURN BLOB;
Example
Output
No output is expected from this operation as it is just assigning an empty blob to a variable.
Explanation
In this example, EMPTY_BLOB()
function is used to initialize my_blob
variable to hold an empty large binary object (BLOB). The EMPTY_BLOB()
function in Oracle SQL returns a locator that points to an empty or uninitialized LOB.