大约有 40,000 项符合查询结果(耗时:0.0406秒) [XML]

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Random row from Linq to Sql

...de... throw new NotImplementedException(); } } Then just order by ctx.Random(); this will do a random ordering at the SQL-Server courtesy of NEWID(). i.e. var cust = (from row in ctx.Customers where row.IsActive // your filter orderby ctx.Random() ...
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Numbering rows within groups in a data frame

...r) and library(dplyr) answers to make the ranking val column in descending order? – Przemyslaw Remin Jul 24 '18 at 9:31  |  show 4 more commen...
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Deny all, allow only one IP through htaccess

... order deny,allow deny from all allow from <your ip> share | improve this answer | follow ...
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Sorting a set of values [closed]

...ng else iterable), sorted(s) returns a list of the elements of s in sorted order: >>> s = set(['0.000000000', '0.009518000', '10.277200999', '0.030810999', '0.018384000', '4.918560000']) >>> sorted(s) ['0.000000000', '0.009518000', '0.018384000', '0.030810999', '10.277200999', '4....
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Why does z-index not work?

...ts have hierarchy, and each stacking context is considered in the stacking order of the parent's stacking context. So with following html div { border: 2px solid #000; width: 100px; height: 30px; margin: 10px; position: relative; background-color: #FFF; } #el3 { background-color: #F0F; width:...
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List of all index & index columns in SQL Server DB

... = 0 AND ind.is_unique_constraint = 0 AND t.is_ms_shipped = 0 ORDER BY t.name, ind.name, ind.index_id, ic.is_included_column, ic.key_ordinal; share | improve this answer ...
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How do you sort an array on multiple columns?

...10], [A,5], 5 comes before 10 so it would end up with [A,5],[A,10] for the ordering. The thing you may be missing is that mysortfunction is called multiple times when you use Array.sort until the sorting is completed. – dcp Apr 23 '15 at 10:59 ...
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How do you make a deep copy of an object?

...copy constructor. Obvious but might be overlooked. Example: public class Order { private long number; public Order() { } /** * Copy constructor */ public Order(Order source) { number = source.number; } } public class Customer { private String nam...
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Remove duplicate values from JS array [duplicate]

... } This chunk of ugly code does the same as the snippet #3 above, but an order of magnitude faster (as of 2017 it's only twice as fast - JS core folks are doing a great job!) function uniq(a) { var seen = {}; return a.filter(function(item) { return seen.hasOwnProperty(item)...
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How should I call 3 functions in order to execute them one after the other?

...(); doSomethingElse(); doSomethingUsefulThisTime(); they will execute in order. doSomethingElse will not start until doSomething has completed. doSomethingUsefulThisTime, in turn, will not start until doSomethingElse has completed. Asynchronous Functions Asynchronous function, however, will not ...