Questions Tagged With optimizer
activenewesthottestmost votedunanswered
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UNION ALL taking far longer than individual queries

22 Sep '15, 13:14 Justin Willey7.6k
2
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2
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1.8k
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Worser Performance on 2nd call of same Statement

22 May '14, 03:21 Volker Barth39.8k
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3.5k
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Does not work inline query optimization using UDF-DETERMINISTIC from "with" in SA 12

15 May '14, 09:52 Nick Elson S...7.3k
3
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3
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4.6k
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Sybase SA12, 16: Error query optimization with UDF

12 May '14, 10:51 Stalker460
3
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1
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2.2k
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11.0.1.2405 Indexes not being used - Is this a known Problem?

15 Apr '14, 09:20 Mark Culp24.8k
4
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1
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3.1k
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Low Performance, because statistics aren't used with curent date, current timestamp

23 Apr '13, 11:36 Markus Dütting536
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1
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2.2k
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SQL Query that hangs

15 Apr '13, 09:48 Jeff Albion10.8k
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1
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1.6k
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How the optimizer analyzes a query sybase?

29 Jan '13, 22:21 Graeme Perrow9.6k
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2
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2.1k
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Peformance of IN vs. OR

01 Nov '12, 07:47 Gandalf199
1
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1.6k
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What does Index scan (all rows) mean?

30 Oct '12, 08:24 Martin9.0k
6
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7
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3.7k
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query plan changes radically

29 Oct '12, 07:53 Volker Barth39.8k
2
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5
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3.6k
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Optimizer Not Considering Usage of Index for Query Optimization

22 May '12, 06:28 Volker Barth39.8k
3
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3
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2.9k
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Reusing of query plans

13 Mar '12, 10:03 Volker Barth39.8k
4
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1
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3.3k
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Calibration best practices

06 Mar '12, 18:46 Mark Culp24.8k
4
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5
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5.1k
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Intra-query parallelism

01 Feb '12, 08:19 Volker Barth39.8k
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2
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2.1k
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Optimization in functions and procedures

11 Dec '11, 15:10 Volker Barth39.8k
2
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3
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2.5k
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Force optimizer to choose indexscans

27 Oct '11, 14:49 Jeff Albion10.8k
6
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1
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5.1k
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How is plan caching handled for multiple web service connections?

06 Oct '11, 09:38 Mark Culp24.8k
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1
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1.7k
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Has Create Statistics any effect for varchar columns?

26 Jul '11, 12:02 Glenn Paulley10.8k
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1
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1.7k
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How can I help the optimizer estimating better?

25 Jul '11, 11:11 Mark Culp24.8k
0
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0
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1.4k
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Why does this plan make sense?

22 Jul '11, 10:32 Martin9.0k
1
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1
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4.1k
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View Pushed Predicate

15 Jul '11, 08:35 Volker Barth39.8k
1
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1
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2.1k
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Optimization_goal = 'Response-time'

09 Jun '11, 10:35 Volker Barth39.8k
1
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1
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1.9k
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Is a reverse index scan distinquished from an index scan?

23 May '11, 10:54 Mark Culp24.8k
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1
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1.6k
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Optimizer using the first key word

20 May '11, 13:45 Breck Carter32.5k
1
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1
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1.7k
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Which statistics-level is used by Plan()?

10 Apr '11, 08:33 Glenn Paulley10.8k
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1
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2.1k
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How to calibrate the IO read speed for the query optimizer?

14 Dec '10, 08:17 Martin9.0k
27questions tagged optimizer
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