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Oracle EMPTY_BLOB function
Oracle/PLSQL EMPTY_BLOB function can be used to initialize empty LOB columns in INSERT or UPDATE operators or it can be used to initialize LOB variable.
Oracle/PLSQL syntax of EMPTY_BLOB function
EMPTY_BLOB ()
Parameters or arguments
There are no parameters or arguments for the EMPTY_BLOB function.
The EMPTY_BLOB function can be used in the following Oracle/PLSQL versions
| Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i |
Consider an example of the Oracle EMPTY_BLOB function and learn how to use the EMPTY_BLOB function in Oracle PLSQL.
UPDATE prods
SET prod_photo = EMPTY_BLOB();
This example EMPTY_BLOB initializes the product_photo column into an empty one. This is different from setting the LOB field to null or a LOB row with length 0.
The Oracle EMPTY_BLOB function is used to initialise a LOB column
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