So, I played with row level security and was unable to find a way to get to work it dynamically. I want to determine if the user can access the row in runtime based on a state of external system, but it seems that row level access is calculated during INSERT/UPDATE and stored in %RLI index. Is there a way to achieve runtime access calculation?
I'm trying to run a simple SQL query in atelier but it complains about the manager. I'm not sure if this is the best way to do it but here is what I got so far:
Hello, is there a way to reset all of the Sample Classes back to their "Installed State."? In other words, delete all the other classes I have put into the samples namespace and leave only those classes that were there when I installed the instance.?
Presenter: Anton Umnikov Task: Identify your slowest SQL queries and tune them for better performance Approach: Use InterSystems’ query profiling and analysis tools. Discuss how system configuration can affect performance
This session will show you how you identify the weakest link in your application SQL and introduce you to the fine art of tuning those queries. To do this we will take a look at InterSystems query profiling and analysis tools, as well as how system configuration can impact SQL performance.
Problem: Obscurity on how our SQL engine works
Content related to this session, including slides, video and additional learning content can be found here.
Presenter: Kyle Baxter Task: Upgrade to a new version of Caché without concerns about slowing existing SQL queries Approach: Use the new Frozen Plans feature in Caché
Content related to this session, including slides, video and additional learning content can be found here.
Presenter: Anton Umnikov Task: Run SQL queries quickly on huge amounts of data Approach: Use a shared-nothing architecture to leverage a cluster of small, cost-effective servers
Explains how a shared nothing architecture allows you to leverage a cluster of small, costeffective servers to serve query results that would have taken much longer on a single, big and expensive box. This brings affordable horizontal scalability.
Content related to this session, including slides, video and additional learning content can be found here.
perhaps i have the possibility of Deleting all history queries, but i think better to check the table where last queries were stored and solve it by deleting wrong registries. anybody knows where is the table 'QueryHistory'.
New to CSP and Zen. I've been going through tutorials and have made some progress. Using the "Contacts" tutorial as an example, I'm trying to create a "ViewContact" page. I want this to be linkable so I'm using URI Parameters, which I understand. However, what I'm not sure about is how to retrieve a specific record. Should I use a SQL statement? If so, how?
I am pleased to announce the next 2016.2 field test kit, 2016.2.0.595.0.
It may look like a slow week, with less than fifty changes having been checked in, but this kit includes the following fixes to problems found by you, the ones running the kits in the field:
Presenter: Andreas Dieckow Task: Apply SQL security to multiple servers in a distributed system Approach: Provide code samples for using new API calls to apply SQL security statements to multiple instances of our products
Description: The requirement that started at all. See examples on how to use this new feature and integrate it into your application by discuss code examples.
Problem: SQL Security is local to the instance and most of time driven by customer application code. That it is only local to the instance and is not automatically going to other instances requires a solution.
Solution: With application code use new API calls to issue SQL security statements that is applied to multiple instances.
Content related to this session, including slides, video and additional learning content can be found here.
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