List all columns referenced in all procedures of all databases

Question

Is there a way that I can get all the columns and tables referenced in all the stored procedures in all the databases in an instance? The output should be:

Answer 1

This will get the list you're after, however it won't help you if you have such column references embedded in dynamic SQL (and may not find references that rely on deferred name resolution). SQL Server doesn't parse the text of the stored procedure to come up with the DMV output.

Try now with COLLATE clauses to deal with cases where you have databases on the same server with different collations.

DECLARE @sql NVARCHAR(MAX) = N'';

SELECT @sql += N'UNION ALL
SELECT 
  [database]  = ''' + REPLACE(name, '''', '''''') + ''',
  [procedure] = QUOTENAME(s.name) + ''.'' + QUOTENAME(p.name)
                COLLATE Latin1_General_CI_AI, 
  [table]     = QUOTENAME(referenced_schema_name) + ''.'' 
              + QUOTENAME(referenced_entity_name)
                COLLATE Latin1_General_CI_AI,
  [column]    = QUOTENAME(referenced_minor_name)
                COLLATE Latin1_General_CI_AI
FROM ' + QUOTENAME(name) + '.sys.schemas AS s
INNER JOIN ' + QUOTENAME(name) + '.sys.procedures AS p
ON s.[schema_id] = p.[schema_id]
CROSS APPLY ' + QUOTENAME(name) 
+ '.sys.dm_sql_referenced_entities'
+ '(QUOTENAME(s.name) + ''.'' + QUOTENAME(p.name), N''OBJECT'') AS d
WHERE d.referenced_minor_id > 0'
FROM sys.databases 
  WHERE database_id > 4 
  AND [state] = 0;

SET @sql = STUFF(@sql,1,11,'');

EXEC sp_executesql @sql;

Also the CROSS APPLY syntax won't work if you have databases that are in 80 compatibility mode. Just make sure you don't execute the code in such a database and it should work fine (even if some of the target databases are in 80).