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Masking an SQL Batch

If you use Dynamic Data Masking with a Sybase or Microsoft SQL Server database, you can mask an SQL batch.

Dynamic Data Masking masks the following SQL batch use cases:

SQL batch without a delimiter.

For example:

select * from account
select  * from employee

SQL batch with a delimiter.

For example:

select * from account;
select  * from employee;

SQL batch that contains an IF ... ELSE block.

For example:

if (select 123) < 7000 
 select * from EMPLOYEE where EMPLOYEE_ID = 15120 
else 
 select EMPLOYEE_ID from EMPLOYEE

SQL batch that contains an IF ... ELSE block and a BEGIN ... END statement.

For example:

if (select EMPLOYEE_ID from employee where EMPLOYEE_ID=123) < 7000 
BEGIN 
 select *  from account; 
 END 
else 
 BEGIN 
  select *  from employee; 
 END

SQL batch that contains an IF EXISTS or IF NOT EXISTS statement.

For example:

select * from employee
select top 2 * from employee
select a.Last_name  as name from employee a

select distinct a.first_name as name 
from employee a inner join employee b on a.first_name=b.first_name

if exists (select  distinct (last_name) from employee where last_name = 'SMITH')
select top 3 a.last_name as name 
from employee a left outer join employee b on a.last_name=b.last_name

select last_name from employee group by last_name

SQL batch that contains an IF EXISTS or IF NOT EXISTS statement and a BEGIN ... END statement.

For example:

if exists (select distinct (empid) from employee where empid = 101)
BEGIN
select * from employee
select * from account
END

SQL batch that contains a GO statement.

For example:

select * from account
select  * from employee
GO
select * from account

SQL batch that contains a GO statement with an argument.

For example:

select * from account
select  * from employee
GO 3

Dynamic Data Masking does not mask the following SQL batch use cases:

SQL batch that contains an anonymous SQL block.

For example:

BEGIN
select * from employee
select * from account
END

SQL batch that declares a stored procedure.

For example:

Create procedure SP1 as
select * from employee

SQL batch that contains a SET command.

For example:

SET QUOTED_IDENTIFIER OFF
select * from employee

SQL batch that contains a USE command.

For example:

USE DDM
select * from employee

SQL batch that declares a statement.

For example:

DECLARE       @return_value int
SET    @return_value = 101
SELECT * FROM EMPLOYEE where EMPID = @return_value

SQL batch that calls a stored procedure.

For example:

select * from employee
EXEC SP1 10,20
select * from account

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Table of Contents

User Guide

User Guide

Masking an SQL Batch

Masking an SQL Batch