View Truncated Tables from All Databases on SQL Server 2012 - sql-server

Question

I'm working on a project that focuses on truncated tables in a server. The goal of the project is to record all truncated tables in the audit table. I've worked on a code below that works fine on a single database; however, I'm not able to run that code automatically on all databases. I've tried writing:
Cursor
Using Exec ('Use ' + #DatabaseName + ';') in the stored procedure.
Exec sp_MSforeachDB and the stored procedure.
Every single time I try to run the sproc for all databases it is executed on a database where the code exists. How can I execute it on all databases.
Main query:
DBCC TRACEON (2537) -- All Log Files
;WITH TranCte as ( SELECT
[Transaction Id]
,[Transaction Name]
,[Begin Time]
,SUSER_SNAME( [Transaction SID]) AS [User]
,[Operation] FROM fn_dblog (NULL, NULL) WHERE [Transaction Name] = 'TRUNCATE TABLE'),
ObjectCte AS
(SELECT
[Lock Information]
,[Transaction Name]
,[Transaction Id]
FROM fn_dblog (NULL, NULL)
WHERE [Transaction Id] IN (SELECT
[Transaction Id]
FROM fn_dblog(NULL, NULL)
WHERE [Transaction Name] = 'TRUNCATE TABLE' )
AND [Lock Information] LIKE '%SCH_M OBJECT%'),
ConvertStringToRows ( [Lock Information], starts, pos, [Transaction ID]) AS
(SELECT
[Lock Information]
,1
,CHARINDEX( ':', [Lock Information])
,[Transaction ID]
FROM ObjectCte UNION ALL SELECT
[Lock Information]
,pos + 1
,CHARINDEX( ':', [Lock Information], pos + 1)
,[Transaction ID]
FROM ConvertStringToRows
WHERE pos > 0 ),
ConvertStringToRowsDetails AS (SELECT
*
,RowN = ROW_NUMBER () OVER (PARTITION BY [Lock Information] , [Transaction ID] ORDER BY Starts , [Transaction ID] )
,ColumnType =
CASE ROW_NUMBER () OVER (PARTITION BY [Lock Information], [Transaction ID] ORDER BY Starts , [Transaction ID] )
WHEN 3 THEN 'Database'
WHEN 4 THEN 'Object'
END
,DetailsID = SUBSTRING ([Lock Information], starts, CASE
WHEN pos > 0 THEN pos - starts
ELSE LEN ([Lock Information])
END)
FROM ConvertStringToRows )
, CTE_Report
AS (SELECT
e.*
,ObjectID = ob .DetailsID
,DatabaseID = db .DetailsID
,o. [Lock Information]
,TableName = OBJECT_NAME (ob. DetailsID, db.DetailsID )
,[Database] = DB_NAME (db. DetailsID)
FROM TranCte e
JOIN ObjectCte o
ON e .[Transaction Id] = o .[Transaction Id]
JOIN ConvertStringToRowsDetails db
ON o .[Lock Information] = db .[Lock Information]
AND db .ColumnType = 'Database'
JOIN ConvertStringToRowsDetails ob
ON o .[Lock Information] = ob .[Lock Information]
AND ob .ColumnType = 'Object' )
SELECT * FROM CTE_Report

Answer 1

That code will reference the system tables for the database you're currently in every time, so will only show that database's data.
If you want to execute it across databases, you'll need to either put the code into each database and run it from there using one of the methods you've already tried, or create composite views and functions that aggregate the code from a specified list of databases, and read from them.
Or you could put all that code into dynamic SQL and EXEC it against a specified database inside your sproc. But I really wouldn't do that.
EDIT - Commenter is right. Ignore my earlier prejudice. Do the dynamic SQL thing. One of the very few SO questions where it's the right answer.