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
3,914 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
22,016 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)
21,734 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
10,310 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
6,580 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
2,390 reads
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Question of the Day
ORDER BY alias
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers