The final version of Microsoft SQL Server started to be available on April 1, 2012.
There are a huge number of innovations in the new version. This is the review of innovations for the database developers.
Finally, normal paging appeared in SQL Server. Now search for the second set of 10 records (2nd page) looks like this:
SELECT DepartmentID, Name, GroupName
ORDER BY DepartmentID
OFFSET 10 ROWS
FETCH NEXT 10 ROWS ONLY;
In SQL 2005/2008, we had to write much larger text.
It is possible to restrict line within the section much more with the ROWS or RANGE, indicating the start and end points.
For example, I have a need to count the four prices for candles (open, high, low, close) in one of the projects. Now the query turns out to be trivial:
SELECT MIN (Ask) OVER (PARTITION BY Pair, Candle) AS Low,
MAX (Ask) OVER (PARTITION BY Pair, Candle) AS High,
FIRST_VALUE (Ask) OVER (PARTITION BY Pair, Candle) AS Open,
LAST_VALUE (Ask) OVER (PARTITION BY Pair, Candle) AS Close
WHERE Pair = 'EURUSD' and Candle = 100
Another long-awaited improvement. What a hard time we have to pass through while implementing the numbering of the documents from the beginning of the year. Now there is no problem.
The conversion functions:
Time and date functions:
These are definitely just aesthetic improvements.
Now, SQL Server provides storage of files and documents in special tables, at the same time they can be accessed from Windows applications in the same manner as if they were stored in the file system without making any changes to the Windows application.
Together with the FileTable function statistical semantic search provides a deep analysis of unstructured documents.
Semantic search is based on an existing component of the full-text search in SQL Server and implement new scenarios, providing search not by keywords, but by the value of the document.
For example, with the index of key phrases or classification a set of technical documentation can be constructed. Or to find the best suitable resume to the job description with the similarity index of documents.
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