Hadoop many flavors of SQL
What are the most popular SQL implementations for Hadoop? How different are they from T-SQL?
What are the most popular SQL implementations for Hadoop? How different are they from T-SQL?
JP Morgan suffers the largest data breach for a financial institution, but Steve Jones doesn't think this record will stand for long.
Transparent Data Encryption offers the ability to encrypt content of the database, its transaction logs, as well as backups while at rest. Encryption and decryption are performed in real-time, at the individual page level, as the database is being written to and read from storage, without necessitating changes to applications accessing their data. Marcin Policht reviews the feature.
Before adopting Hadoop into your organisation there are a number of factors to consider. This article highlights some of the key points.
In SQL Server, heaps are rightly treated with suspicion. Although there are rare cases where they perform well, they are likely to be the cause of poor performance. If a table is likely to have a large number of changes, then it can become fragmented due to way that space is allocated and forward pointers used. How does one detect this problem? Is it significant? How does one deal with it, if necessary? Neeraj Tripathi explains.
Today we have a guest editorial from Andy Warren that looks at those that run software early in its lifecycle.
There may be some people who enjoy repetitive typing, but Grant Fritchey doesn't. He's always preferred SQL Prompt. The standard snippets suit developers fine but aren't so DBA-oriented, so he set about asking the SQLServerCentral community what they typed in the most, and set about producing a set of DBA snippets with the results.
Most DBAs don't get involved with budgets at work, but we are affected by them. Steve notes you might want to understand how budgets work.
Greg Larson walks through the GUI installation process for SQL Server 2016 and explore these new installation options.
By SQLPals
Track SQL Server Configuration Changes Using the Error Log If you...
Good documentation gets you started. Good books get you deep. After years of working...
By Vinay Thakur
In previous posts, we looked at the SQL Server engine. for us DBAs, the...
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We have a SQL Server installed. We have a 500GB drive for the database....
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 YearEstablished, json_objectagg(city : TeamName) FROM dbo.NFLTeams GROUP BY YearEstablished;See possible answers