DROP MASKING POLICY

Description

Deletes a masking policy.

Precautions

Only users with the POLADMIN or SYSADMIN permission, or the initial user can perform this operation.

Syntax

1

DROP MASKING POLICY [ IF EXISTS ] policy_name;

Parameters

• policy_name

  Specifies the audit policy name, which must be unique.

  Value range: A string indicating an existing policy name.

Examples

-- Create table tb_for_masking.
gaussdb=# CREATE TABLE tb_for_masking(idx int, col1 text, col2 text, col3 text, col4 text, col5 text, col6 text, col7 text,col8 text);

-- Insert data into the tb_for_masking table.
gaussdb=# INSERT INTO tb_for_masking VALUES(1, '9876543210', 'usr321usr', 'abc@huawei.com', 'abc@huawei.com', '1234-4567-7890-0123', 'abcdef 123456 ui 323 jsfd321 j3k2l3', '4880-9898-4545-2525', 'this is a llt case'); 

-- Create a resource label for sensitive column col1.
gaussdb=# CREATE RESOURCE LABEL mask_lb1 ADD COLUMN(tb_for_masking.col1);

-- Create a resource label for sensitive column col2.
gaussdb=# CREATE RESOURCE LABEL mask_lb2 ADD COLUMN(tb_for_masking.col2);

-- Create a resource label for sensitive column col3.
gaussdb=# CREATE RESOURCE LABEL mask_lb3 ADD COLUMN(tb_for_masking.col3);

-- Create a data masking policy named maskpol1.
gaussdb=# CREATE MASKING POLICY maskpol1 maskall ON LABEL(mask_lb1);

-- Create a data masking policy named maskpol2.
gaussdb=# CREATE MASKING POLICY maskpol2 randommasking ON LABEL(mask_lb2);

-- Create a data masking policy named maskpol3.
gaussdb=# CREATE MASKING POLICY maskpol3 basicemailmasking ON LABEL(mask_lb3);

-- Delete a masking policy.
gaussdb=# DROP MASKING POLICY IF EXISTS maskpol1;

-- Delete a group of masking policies.
gaussdb=# DROP MASKING POLICY IF EXISTS maskpol2, maskpol3;

-- Delete a resource label.
gaussdb=# DROP RESOURCE LABEL mask_lb1;
gaussdb=# DROP RESOURCE LABEL mask_lb2;
gaussdb=# DROP RESOURCE LABEL mask_lb3;

-- Delete the table.
gaussdb=# DROP TABLE tb_for_masking;

Helpful Links

ALTER MASKING POLICY and CREATE MASKING POLICY