Privacy policy. Since all rowsets flow unordered through the query processor to provide better optimization until the rowset is returned or written into a file, having an ORDER BY clause without a FETCH clause is meaningless on the current batch query statements.
The order gets applied from left to right in the expression list and may either be sorted in ascending or descending order depending on the optionally specified sort direction. The default sort direction is ascending. U-SQL makes many of the keywords optional to minimize the amount of typing required. If the FETCH clause is not specified, then all the rows starting after the skipped rows are being returned. Otherwise, the query will return a fixed order of values.
For queries that have multiple pages of results , we typically recommend using continuation tokens. Continuation tokens are a "bookmark" for the place where the query can later resume. If you wanted to return the query's next page, you would have to start from the beginning.
The performance advantage is a savings in client resources by avoiding processing items that are not needed. For example, here's a query that skips the first value and returns the second value in order of the resident city's name :.
Asken 7, 9 9 gold badges 41 41 silver badges 72 72 bronze badges. I've been using this query for a little while now and it works great so thanks for that. I'm just wondering what the 'xx' represents? The xx is just a table alias. It might be a little clearer if you said AS xx — Concrete Gannet. Tom H Tom H I am asking because if it doesn't and table has lot's of records it may be inefficient.
I'm on my phone, so I can't test it right now, but it should be easy enough to test. You are right MichaelRushton, can not be used in the same query or in the same sub-query, then you have to use a sub-query to separate it. I will edit my answer. Thanks and excuse me my English. Tom Tom 4 4 silver badges 7 7 bronze badges.
I removed your anti-microsoft hate speech. Don't discuss holy wars here; just answer and ask questions in a non-subjective way. Community Bot 1 1 1 silver badge. Szymon Paul Roub Barny Barny 1 1 gold badge 3 3 silver badges 13 13 bronze badges. AND t1. Important points: ORDER BY must be identical limit can be replaced with number of results to retrieve, offset is number of results to skip Please compare performance with previous solutions as they may be more efficient this solution duplicates where and order by clauses, and will provide incorrect results if they are out of sync on the other hand order by is there explicitly if that's what's needed.
Mike97 Mike97 4 4 silver badges 19 19 bronze badges. Vanda Ros Vanda Ros 87 1 1 silver badge 5 5 bronze badges. While this code may solve the question, including an explanation of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Remember that you are answering the question for readers in the future, not just the person asking now.
Please edit your answer to add explanations and give an indication of what limitations and assumptions apply. The Overflow Blog. Stack Gives Back
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