I've worked with SQL Server since 6.5, but I am not a DBA (just a jack of all trades kind of guy). I have done the installs, administration (not optimization), and I know what to do regarding all sorts of query types to get/modify/delete data - so I am not a beginner when it comes to SQL Server. That being said - there are some things I don't know because I have not yet needed to...until now.
So my question is two-fold:
1) Is there any way to modify data that is in SQL slack space or SQL deleted pages? I ask because I need to mask CC data (for our PCI compliance) and I have not yet figured it out so I need to ask for assistance.
2) Is there any impact of doing a DELETE FROM tablename versus TRUNCATE TABLE tablename versus deleting the table entirely (basically what I am looking for is will it make the data inaccessible in SQL slack space...