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CREATE MASK RULE

Description

The CREATE MASK RULE syntax is used to create a mask rule.

Syntax

CreateEncryptRule ::=
  'CREATE' 'MASK' 'RULE' maskRuleDefinition (',' maskRuleDefinition)*

maskRuleDefinition ::=
  ruleName '(' 'COLUMNS' '(' columnDefinition (',' columnDefinition)* ')' ')'

columnDefinition ::=
  '(' 'NAME' '=' columnName ',' maskAlgorithmDefinition ')'

maskAlgorithmDefinition ::=
  'TYPE' '(' 'NAME' '=' maskAlgorithmType (',' propertiesDefinition)? ')'

propertiesDefinition ::=
  'PROPERTIES' '(' key '=' value (',' key '=' value)* ')'

ruleName ::=
  identifier

columnName ::=
  identifier

maskAlgorithmType ::=
  literal

key ::=
  string

value ::=
  literal

Note

  • maskAlgorithmType specifies the data masking algorithm type. For more details, please refer to Data Masking Algorithm;
  • Duplicate ruleName will not be created.

Example

Create a mask rule

CREATE MASK RULE t_mask (
COLUMNS(
(NAME=phone_number,TYPE(NAME='MASK_FROM_X_TO_Y', PROPERTIES("from-x"=1, "to-y"=2, "replace-char"="*"))),
(NAME=address,TYPE(NAME='MD5'))
));

Reserved words

CREATE, MASK, RULE, COLUMNS, NAME, TYPE