大约有 40,000 项符合查询结果(耗时:0.0362秒) [XML]

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How to calculate percentage with a SQL statement

I have a SQL Server table that contains users & their grades. For simplicity's sake, lets just say there are 2 columns - name & grade . So a typical row would be Name: "John Doe", Grade:"A". ...
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update columns values with column of another table based on condition [duplicate]

I have two tables... 2 Answers 2 ...
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Difference between Divide and Conquer Algo and Dynamic Programming

...blem is solved only once and the result of each sub-problem is stored in a table ( generally implemented as an array or a hash table) for future references. These sub-solutions may be used to obtain the original solution and the technique of storing the sub-problem solutions is known as memoization....
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Algorithm to find top 10 search terms

...ue ID for each. This whole set of data can be loaded into memory as a hash table, consuming roughly 300MB memory. (We have implemented our own hash table. The Java's implementation takes huge memory overhead) Each phrase then can be identified as an array of integers. This is important, because s...
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Oracle Differences between NVL and Coalesce

...n search contains comparison of nvl result with an indexed column. create table tt(a, b) as select level, mod(level,10) from dual connect by level<=1e4; alter table tt add constraint ix_tt_a primary key(a); create index ix_tt_b on tt(b); explain plan for select * from tt where a=nvl(:1,a) an...
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SCOPE_IDENTITY() for GUIDs?

...ng OUTPUT. This works when you're inserting multiple records also. CREATE TABLE dbo.GuidPk ( ColGuid uniqueidentifier NOT NULL DEFAULT NewSequentialID(), Col2 int NOT NULL ) GO DECLARE @op TABLE ( ColGuid uniqueidentifier ) INSERT INTO dbo.GuidPk ( Col2 ) OUTPUT in...
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How do I use LINQ Contains(string[]) instead of Contains(string)

...ids = arrayofuids.Select(id => int.Parse(id)).ToList(); var selected = table.Where(t => uids.Contains(t.uid)); share | improve this answer | follow | ...
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Can I use multiple “with”?

... + '%', X.[SQL]) > 0 ) AS INC ) And yes, you can reference common table expression inside common table expression definition. Even recursively. Which leads to some very neat tricks. share | ...
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Request is not available in this context

...ot leave the fields null. (In my case, don't write a record to one logging table, but it would help if there were a good way to determine whether or not is available.) – Zarepheth Sep 11 '14 at 21:47 ...
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Place a button right aligned

...ements on the block: .border { border: 2px indigo dashed; } .d-table { display:table; } .d-table-cell { display:table-cell; } .w-100 { width: 100%; } .tar { text-align: right; } <div class="border d-table w-100"> <p class="d-table-cell">The paragr...