Adding PK Exceptions to SQLCop Tests
In this piece, Steve Jones shows how you can enforce a requirement of a Primary Key (PK) with a unit test, but also allow exceptions where needed.
2016-05-12
1,353 reads
Articles
Performance Surprises and Assumptions : DATEADD()
Aaron Bertrand explores yet another scenario where a date/time function seems to cause the optimizer to behave unexpectedly.
2016-05-12
4,956 reads
2016-05-11
4,469 reads
Data Mining Part 40: Big Data and Microsoft Data Mining
This article will introduce about big data and HDInsight and Hadoop.
2016-05-10
1,336 reads
SQL Server Security Audit Basics
SQL Server Server Audit has grown in functionality over the years but it can be tricky to maintain and use because it lacks centralization and analysis tools. It can do a fast and lightweight audit of many different activities including DML and DDL at both Instance and Database Levels - even the work of the DBAs. How do you check logins and permissions? How do you script an enterprise-wide audit solution? How can you hope to analyse the log data you get? Feodor Georgiev gets you started.
2016-05-10
3,537 reads
RANDom traps for the unwary
The Books Online description of the RAND() function is only true from certain perspectives.
2016-05-09
2,731 reads
2016-05-09 (first published: 2016-04-26)
7,938 reads
Big Data Architecture
The next few years will be critical for the information technology staff, as they attempt to integrate and manage multiple, diverse hardware and software platforms. In this article, Lockwood Lyon addresses how to meet this need, as users demand greater ability to analyze ever-growing mountains of data, and IT attempts to keep costs down.
2016-05-09
5,553 reads
Unique Indexes Are Code; Non-Unique Indexes Are Data
Unique indexes are the database developer's responsibility. Non-unique indexes can be more easily maintained directly on the production database by an automated process.
2016-05-06 (first published: 2014-06-26)
16,574 reads
SQL Server Reporting Services CountDistinct and Previous Functions
Scott Murray takes a look at what count function variations and related functions are available in SQL Server Reporting Services (SSRS).
2016-05-06
3,345 reads
Blogs
A Cloud Dependency Failure from Amazon
By Steve Jones
I went to sleep while reading a Kindle book on my phone. I know...
Deploying AI in logistics (the unfiltered version)
A conversation with Jan Laš, CIO at HOPI, about what deploying a data agent...
T-SQL Tuesday #198 Invitation: How Do You Detect Data Changes?
It's time for T-SQL Tuesday #198! This month's topic is change detection. The post T-SQL...
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Question of the Day
Creating a JSON Document III
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers