Missing Index – A factor to review before implementing performance changes


Have u ever faced any performance issue with any of your REST API hosted out in the internet. So here’s the background, our client has a Custom Asp.Net Portal(remembering the old day school of using Asp’s, interesting…??) which is built on using the REST API.

So this REST API was having some performance issues, this is where we got to check on the newly created entity for our API Implementation…after couple of hours of research, we found that few indexes are missing.

You should be knowing how it’s difficult to read a book without indexes, so in the same way, the C# code was finding it difficult to retrieve the data without any indexes and after adding them, the peformance had been improved and with a bit of code improvisation, we got a significant improvement in the performance.

For those trying to search for missing indexes, please try out the below code…


       CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage],


       OBJECT_NAME(mid.[object_id]) AS [table_name],








       p.rows AS [table_rows],

       mid.[statement] AS [DatabaseSchemaTable],

         GETDATE() QueryExecustionTime

FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK)

INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK)

ON migs.group_handle = mig.index_group_handle

INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK)

ON mig.index_handle = mid.index_handle

INNER JOIN sys.partitions AS p WITH (NOLOCK)

ON p.[object_id] = mid.[object_id]

WHERE mid.database_id = DB_ID(‘Starbucks_MSCRM’) –CHANGE DB NAME HERE –Starbucks_MSCRM

–AND mid.[object_id] = OBJECT_ID(‘dbo.ign_transactionbase’) –CHNAGE TABLE NAME HERE



Hope you found some interesting scenario to deal with your performance issues.




Using Custom API as a trigger for Flow

Dropping new goodies straight to Microsoft Docs, without any formal announcement, has now been normalised. Couple of Virtual Table features have been “announced” without much fanfare this way. The ability to trigger Flows from Custom API is one such unannounced feature. Custom API is a feature in Dataverse that is very similar to Custom Process […]

Using Custom API as a trigger for Flow

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