Memory tab improvement

Add max, avg & min values in addition to current values.  This can make it easier to identify if a memory clerk had high or low usage within the selected date range.
Added column descriptions.

Author: DavidWiseman

DBADashDB/dbo/Stored Procedures/MemoryUsage_Get.sql

@@ -18,21 +18,65 @@ FROM dbo.MemoryUsage MU
 WHERE MU.InstanceID = @InstanceID
 AND MU.SnapshotDate>=@FromDate
 AND MU.SnapshotDate < @ToDate
-ORDER BY MU.SnapshotDate DESC
+ORDER BY MU.SnapshotDate DESC;
 
+WITH Agg AS (
+    SELECT	MemoryClerkTypeID,
+			MAX(pages_kb) AS max_pages_kb,
+			AVG(pages_kb) AS avg_pages_kb,
+			MIN(pages_kb) AS min_pages_kb,
+			MAX(virtual_memory_reserved_kb) AS max_virtual_memory_reserved_kb,
+			AVG(virtual_memory_reserved_kb) AS avg_virtual_memory_reserved_kb,
+			MIN(virtual_memory_reserved_kb) AS min_virtual_memory_reserved_kb,
+			MAX(virtual_memory_committed_kb) AS max_virtual_memory_committed_kb,
+			AVG(virtual_memory_committed_kb) AS avg_virtual_memory_committed_kb,
+			MIN(virtual_memory_committed_kb) AS min_virtual_memory_committed_kb,
+			MAX(awe_allocated_kb) AS max_awe_allocated_kb,
+			AVG(awe_allocated_kb) AS avg_awe_allocated_kb,
+			MIN(awe_allocated_kb) AS min_awe_allocated_kb,
+			MAX(shared_memory_reserved_kb) AS max_shared_memory_reserved_kb,
+			AVG(shared_memory_reserved_kb) AS avg_shared_memory_reserved_kb,
+			MIN(shared_memory_reserved_kb) AS min_shared_memory_reserved_kb,
+			MAX(shared_memory_committed_kb) AS max_shared_memory_committed_kb,
+			AVG(shared_memory_committed_kb) AS avg_shared_memory_committed_kb,
+			MIN(shared_memory_committed_kb) AS min_shared_memory_committed_kb
+    FROM dbo.MemoryUsage
+    WHERE InstanceID = @InstanceID
+    AND SnapshotDate >= @FromDate
+    AND SnapshotDate < @ToDate
+    GROUP BY MemoryClerkTypeID
+)
 SELECT MCT.MemoryClerkType,
        ISNULL(MCT.MemoryClerkDescription,'Description not available.') AS MemoryClerkDescription,
        MU.pages_kb,
+	   Agg.max_pages_kb,
+	   Agg.avg_pages_kb,
+	   Agg.min_pages_kb,
        MU.virtual_memory_reserved_kb,
+	   Agg.max_virtual_memory_reserved_kb,
+	   Agg.avg_virtual_memory_reserved_kb,
+	   Agg.min_virtual_memory_reserved_kb,
        MU.virtual_memory_committed_kb,
+	   Agg.max_virtual_memory_committed_kb,
+	   Agg.avg_virtual_memory_committed_kb,
+	   Agg.min_virtual_memory_committed_kb,
        MU.awe_allocated_kb,
+	   Agg.max_awe_allocated_kb,
+	   Agg.avg_awe_allocated_kb,
+	   Agg.min_awe_allocated_kb,
        MU.shared_memory_reserved_kb,
+	   Agg.max_shared_memory_reserved_kb,
+	   Agg.avg_shared_memory_reserved_kb,
+	   Agg.min_shared_memory_reserved_kb,
        MU.shared_memory_committed_kb,
+	   Agg.max_shared_memory_committed_kb,
+	   Agg.avg_shared_memory_committed_kb,
+	   Agg.min_shared_memory_committed_kb,
 	   MU.SnapshotDate,
 	   MU.pages_kb*1.0 / SUM(MU.pages_kb) OVER() AS Pct
 FROM dbo.MemoryUsage MU
-    JOIN dbo.MemoryClerkType MCT
-        ON MCT.MemoryClerkTypeID = MU.MemoryClerkTypeID
+JOIN dbo.MemoryClerkType MCT ON MCT.MemoryClerkTypeID = MU.MemoryClerkTypeID
+JOIN Agg ON Agg.MemoryClerkTypeID = MU.MemoryClerkTypeID
 WHERE MU.InstanceID = @InstanceID
 AND MU.SnapshotDate = @LatestSnapshot
 ORDER BY MU.pages_kb DESC