大约有 48,000 项符合查询结果（耗时：0.0709秒） [XML]
SELECT DISTINCT on one column
...FROM MyTable
WHERE SKU LIKE 'FOO%') AS a
WHERE a.RowNumber = 1
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What is pseudopolynomial time? How does it differ from polynomial time?
...hms that run in pseudopolynomial time have runtimes like O(nW) (for the 0/1 Knapsack Problem ) or O(√n) (for trial division ); why doesn't that count as polynomial time?
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edited Sep 25 '10 at 18:41
answered Sep 24 '10 at 20:48
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edited Dec 2 '15 at 4:16
Randika Vishman
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What is a proper naming convention for MySQL FKs?
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In MySQL, there is no need to give a symbolic name to foreign key constraints. If a name is no...
IntelliJ IDEA: Running a shell script as a Run/Debug Configuration
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edited Sep 7 '14 at 16:26
Anton Dozortsev
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How to get the clicked link's href with jquery?
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175
this in your callback function refers to the clicked element.
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Find string between two substrings [duplicate]
How do I find a string between two substrings ( '123STRINGabc' -> 'STRING' )?
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Re-entrant locks in C#
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No, not as long as you are locking on the same object. The recursive code effectively already...