Unanswered Questions

18
votes
1answer
1k views

How to calculate/store Top 10 in a tabular model?

We have recently created an SSAS tabular model so our users can access it via PowerView. We have a measure on one of our fact tables to get the TotalActiveItems using a formula: ...
11
votes
0answers
246 views

Is sys.stats_columns incorrect?

Let's say I have a table Foo with columns ID1, ID2 and a composite primary key defined over ID2, ID1. (I'm currently working with a System Center product that has several tables defined this way with ...
10
votes
0answers
101 views

SQL Server recreating plans each day

We have this problem in our production environment. Microsoft SQL Server 2008 R2 (SP1) - 10.50.2500.0 (X64) - Enterprise Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1). SQL Server ...
7
votes
0answers
195 views

Crashing CLR on SQL Server 2014 (windows 2012R2)

I have this small CLR that does a RegEX function on a string in columns. When running on SQL Server 2014 (12.0.2000) on Windows Server 2012R2 the process crashes with Msg 0, Level 11, State 0, ...
7
votes
0answers
223 views

How to handle bad query plan caused by exact equality on range type?

I'm performing an update where I require an exact equality on a tstzrange variable. ~1M rows are modified, and the query takes ~13 minutes. The result of EXPLAIN ANALYZE can be seen here, and the ...
7
votes
1answer
448 views

Designing Simple Schema for Disaggregation of Demand Forecast

I am doing a simple database design task as a training exercise where I have to come up with a basic schema design for the following case: I have a parent-child hierarchy of products (example, Raw ...
6
votes
1answer
108 views

SSMS Registered Servers with ReadOnly Application Intent

We are working on SQL Server 2014 POC testing with AlwaysOn and one of the user asked about saving the configuration of SSMS with ReadOnly Intent using the registered servers in Local server group. ...
6
votes
1answer
128 views

Transactional DDL workflow for MySQL

I was a little surprised to discover that DDL statements (alter table, create index etc) implicitly commit the current transaction in MySQL. Coming from MS SQL Server, the ability to do database ...
6
votes
0answers
512 views

AlwaysOn Availability Group error after Windows Update in environment without a failover cluster

Our SQL Server service was down this morning which brought down some of our websites. When I went to check the Windows Event Viewer I saw the following errors: Script level upgrade for database ...
6
votes
0answers
223 views

Modification to GEQO (Genetic Query Optimization) of PostgreSQL

I need to implement a functionality that is in line with the GEQO functionality of PostgreSQL. I understand that GEQO approach is to encode query plans as integer strings and GEQO generates these ...
6
votes
0answers
367 views

Excessive compile blocking on sp_procedure_params_90_rowset

A resurgence of this question Blocked-process-report: what is this waitresource "OBJECT: 32767:124607697:0 [COMPILE] on MSDN: I have caught these statements in Profiler. They all have durations over ...
6
votes
0answers
177 views

9i streams capture doesn't evaluate rules

I have a streams replication set up between two oracle 9.2.0.8 instances as sources and an 11g instance as a destination, processing a small subset of data from each database (let it be one table ...
5
votes
0answers
65 views

Low PLE on NUMA node 000, high on 001

I'm looking at PLE (Page Life Expectency) across NUMA nodes on our SQL Servers, and came across a rather weird distribution. Numa node 000 has a very low PLE compared to 001. I'm unsure why this is. ...
5
votes
0answers
68 views

Using SQL Server with BitLocker

I have an application that is running on a device that has two partitions: C and D. The application runs off of C while D contains the SQL Server database (mdf file). In addition, D is also encrypted ...
5
votes
0answers
100 views

How to set MSDN in order to open on a certain version of Microsoft SQL Server?

In a network, there are certain different installed versions of Microsoft SQL Server, starting with 2005, 2008 and 2008 R2. Is there a specific option of MSDN that can fix the opening of new pages on ...

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