Skip to main content

Running sp_updatestats on AWS RDS database

Image
By
Part of the maintenance tasks that I perform on a MSSQL Content Manager database is to run stored procedure sp_updatestats.

exec sp_updatestats

However, that is not supported on an AWS RDS instance. The error message below indicates that only the sa account can perform this:

Msg 15247, Level 16, State 1, Procedure sp_updatestats, Line 15 [Batch Start Line 0]
User does not have permission to perform this action.

Instead there are several posts that suggest using UPDATE STATISTICS instead: https://dba.stackexchange.com/questions/145982/sp-updatestats-vs-update-statistics

I stumbled upon the following post from 2008 (!!!), https://social.msdn.microsoft.com/Forums/sqlserver/en-US/186e3db0-fe37-4c31-b017-8e7c24d19697/spupdatestats-fails-to-run-with-permission-error-under-dbopriveleged-user, which describes a way to wrap the call to sp_updatestats and execute it under a different user:

create procedure dbo.sp_updstats
with execute as 'dbo'
as
exec sp_updatestats
go


grant execute on dbo.sp_updstats to [TCMDBUser]
go

exec dbo.sp_updstats

I ran the code above as the RDS admin user and it seemed to work. The output was very similar to what the sp_updatestats would output, so I would conclude it actually worked ;)


Labels:

Comments

Unknown said…
This does not specify what database this stored procedure is being created in. What database? In RDS you cannot create a stored procedure in the master db
17 June, 2019 21:17
Post a Comment

Popular posts from this blog

Scaling Policies

By
This post is part of a bigger topic Autoscaling Publishers in AWS . In a previous post we talked about the Auto Scaling Groups , but we didn't go into details on the Scaling Policies. This is the purpose of this blog post. As defined earlier, the Scaling Policies define the rules according to which the group size is increased or decreased. These rules are based on instance metrics (e.g. CPU), CloudWatch custom metrics, or even CloudWatch alarms and their states and values. We defined a Scaling Policy with Steps, called 'increase_group_size', which is triggered first by the CloudWatch Alarm 'Publish_Alarm' defined earlier. Also depending on the size of the monitored CloudWatch custom metric 'Waiting for Publish', the Scaling Policy with Steps can add a difference number of instances to the group. The scaling policy sets the number of instances in group to 1 if there are between 1000 and 2000 items Waiting for Publish in the queue. It also sets the
Post a Comment
Read more

Toolkit - Dynamic Content Queries

By
This post if part of a series about the  File System Toolkit  - a custom content delivery API for SDL Tridion. This post presents the Dynamic Content Query capability. The requirements for the Toolkit API are that it should be able to provide CustomMeta queries, pagination, and sorting -- all on the file system, without the use third party tools (database, search engines, indexers, etc). Therefore I had to implement a simple database engine and indexer -- which is described in more detail in post Writing My Own Database Engine . The querying logic does not make use of cache. This means the query logic is executed every time. When models are requested, the models are however retrieved using the ModelFactory and those are cached. Query Class This is the main class for dynamic content queries. It is the entry point into the execution logic of a query. The class takes as parameter a Criterion (presented below) which triggers the execution of query in all sub-criteria of a Criterio
Post a Comment
Read more