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Published
20 hours ago •
dataplat
dataplat
Support Data classification
Summary of new feature
- Support add/removing/updating of data classification for a table column
Proposed technical details (if applicable)
- Classification Information types and Sensitivity are stored as extended properties on tables
- The values are GUID's, I've found a mapping table here GUID Mapping
- Below is the SQL code that was added when adding a Classification to TABLE1 and Column 'EXPIRATION_TS'. the classfication was Information type: [NA] and Sensitivity: General
EXEC sys.sp_addextendedproperty
@name = N'sys_information_type_id',
@value = N'',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'TABLE1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_information_type_name',
@value = N'',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'TABLE1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_sensitivity_label_id',
@value = N'684a0db2-d514-49d8-8c0c-df84a7b083eb',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'TABLE1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_sensitivity_label_name',
@value = N'General',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'TABLE1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
Here is the same but with the Information Type set to Other
EXEC sys.sp_addextendedproperty
@name = N'sys_information_type_id',
@value = N'9C5B4809-0CCC-0637-6547-91A6F8BB609D',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'Table1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_information_type_name',
@value = N'Other',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'Table1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_sensitivity_label_id',
@value = N'684a0db2-d514-49d8-8c0c-df84a7b083eb',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'Table1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_sensitivity_label_name',
@value = N'General',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'Table1',
@level2type = N'COLUMN',
@level2name = N'EXPIRATION_TS';
GO
Latest version of dbatools as of writing
- dbatools 1.0.83
Data Classification was added in SMO but we are not at the required version of SMO at this time.
It doesn't need to be done via SMO, yes ideally it would be.
Here is what I use to get the current classifications
$SQLInstance='Server1'
$Database='Database1'
$Query=@"
SELECT Schema_name(objects.schema_id) AS schema_name,
objects.NAME AS table_name,
columns.NAME AS column_name,
ISNULL(EP.information_type_name,'') AS information_type_name,
ISNULL(EP.sensitivity_label_name,'') AS sensitivity_label_name
FROM (SELECT ISNULL(EC1.major_id,EC2.major_id) AS major_id,
ISNULL(EC1.minor_id,EC2.minor_id) AS minor_id,
EC1.information_type_name,
EC2.sensitivity_label_name
FROM (SELECT major_id,
minor_id,
NULLIF(value,'') AS information_type_name
FROM sys.extended_properties
WHERE NAME = 'sys_information_type_name') EC1
FULL OUTER JOIN (SELECT major_id,
minor_id,
NULLIF(value,'') AS sensitivity_label_name
FROM sys.extended_properties
WHERE NAME = 'sys_sensitivity_label_name') EC2
ON ( EC2.major_id = EC1.major_id AND EC2.minor_id = EC1.minor_id )) EP
JOIN sys.objects objects
ON EP.major_id = objects.object_id
JOIN sys.columns columns
ON ( EP.major_id = columns.object_id AND EP.minor_id = columns.column_id )
"@
$ClassifiedColumns=Invoke-DBAQuery -SQLInstance $SqlInstance -Database $Database -Query $query
We require this be done via SMO first, unless someone shows it does not work, or it is unreasonably difficult to work....SSMS is using SMO.
Ok, Here is my workaround while the dbatools is not at the requred SMO version. In case someone else needs to do it.
$SQLInstance = 'Server1'
$Database = 'Database1'
# -- Mappings
$InformationTypeMapping = @{
"Networking" = "B40AD280-0F6A-6CA8-11BA-2F1A08651FCF";
"Contact Info" = "5C503E21-22C6-81FA-620B-F369B8EC38D1";
"Credentials" = "C64ABA7B-3A3E-95B6-535D-3BC535DA5A59";
"Credit Card" = "D22FA6E9-5EE4-3BDE-4C2B-A409604C4646";
"Banking" = "8A462631-4130-0A31-9A52-C6A9CA125F92";
"Financial" = "C44193E1-0E58-4B2A-9001-F7D6E7BC1373";
"Other" = "9C5B4809-0CCC-0637-6547-91A6F8BB609D";
"Name" = "57845286-7598-22F5-9659-15B24AEB125E";
"National ID" = "6F5A11A7-08B1-19C3-59E5-8C89CF4F8444";
"SSN" = "D936EC2C-04A4-9CF7-44C2-378A96456C61";
"Health" = "6E2C5B18-97CF-3073-27AB-F12F87493DA7";
"Date Of Birth" = "3DE7CC52-710D-4E96-7E20-4D5188D2590C"
}
$SensitivityLabelMapping = @{
"Public" = "1866CA45-1973-4C28-9D12-04D407F147AD";
"General" = "684A0DB2-D514-49D8-8C0C-DF84A7B083EB";
"Confidential" = "331F0B13-76B5-2F1B-A77B-DEF5A73C73C2";
"Confidential - GDPR" = "989ADC05-3F3F-0588-A635-F475B994915B";
"Highly Confidential" = "B82CE05B-60A9-4CF3-8A8A-D6A0BB76E903";
"Highly Confidential - GDPR" = "3302AE7F-B8AC-46BC-97F8-378828781EFD";
}
$ClassifyQuery = @"
EXEC sys.sp_addextendedproperty
@name = N'sys_information_type_id',
@value = N'{3}',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'{0}',
@level2type = N'COLUMN',
@level2name = N'{1}';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_information_type_name',
@value = N'{2}',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'{0}',
@level2type = N'COLUMN',
@level2name = N'{1}';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_sensitivity_label_id',
@value = N'{5}',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'{0}',
@level2type = N'COLUMN',
@level2name = N'{1}';
GO
EXEC sys.sp_addextendedproperty
@name = N'sys_sensitivity_label_name',
@value = N'{4}',
@level0type = N'SCHEMA',
@level0name = N'dbo',
@level1type = N'TABLE',
@level1name = N'{0}',
@level2type = N'COLUMN',
@level2name = N'{1}';
GO
"@
# Get Columns - General / Other
$ColumnQuery = @"
-- Get All General Columns
select SCH.Name As SchemaName, TBL.Name as TableName, SCOL.Name as ColumnName from sys.tables TBL
INNER join sys.Schemas SCH ON
TBL.schema_id = SCH.Schema_id
INNER Join Syscolumns scol ON
TBL.object_id = scol.id
where SCOL.Name in ('Entered_ts','Expiration_ts')
and SCH.Name = 'dbo'
"@
$ColumnsToProcess = Invoke-DBAQuery -SQLInstance $SqlInstance -Database $Database -Query $ColumnQuery
Foreach ($Row in $ColumnsToProcess)
{
$TABLE = $Row.TableName
$COLUMN = $Row.ColumnName
$InformationType = 'Other'
$InformationTypeGUID = $InformationTypeMapping.$InformationType
$SensitivityLabel = 'General'
$SensitivityLabelGUID = $SensitivityLabelMapping.$SensitivityLabel
Invoke-DBAQuery -SQLInstance $SqlInstance -Database $Database -Query ($ClassifyQuery -f $TABLE, $COLUMN, $InformationType, $InformationTypeGUID, $SensitivityLabel, $SensitivityLabelGUID)
}
Once we get SMO updated we will work on adding new features and functionality that comes with the version of SMO.
This will have to be done via T-SQL. There is no documentation publicly that shows SMO has support for Data Classification.
