Adding a Database with Polybase External Tables to Always On Availability Group
Learn how to ensure your PolyBase objects are accessible from all nodes in an Availability Group.
2020-05-26
3,935 reads
Ramya Makam
TempDB growth due to version store on AlwaysOn secondary server
On a not-so-busy day, I received an alert saying tempdb has grown to 90 percent of the drive size and there is only 10 percent space left on the drive. The server is a SQL Server 2014 instance and hosts AlwaysOn secondary databases.
2016-11-07
22,082 reads
SELECT INTO vs INSERT INTO on Columnstore
This article compares SELECT INTO and INSERT INTO under different scenarios, and the best approach preferred.
2016-08-05 (first published: 2015-06-09)
21,749 reads
Mail Fails with SQLCMD Error
I had a SQL Server job that kept failing with sqlcmd error and this describes how I resolved it.
2015-03-19
10,334 reads
How does a View work on a Table with a Clustered Columnstore Index ?
This article is about how a view works when it is created on a table with clustered columnstore index on it.
2015-02-05
6,595 reads
Clustered Columnstore Index Gives "Unable to find index entry" Error
The Clustered columnstore index generates "unable to find index entry" error and a memory dump after few DMLs on the table
2014-09-02
2,399 reads
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The Empty Aggregate
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Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers