大约有 5,500 项符合查询结果(耗时:0.0201秒) [XML]
How do I read an entire file into a std::string in C++?
...on times than the other answers presented here, when taking the average of 100 runs against the text of Moby Dick (1.3M). Not bad for a portable C++ solution, I would like to see the results of mmap'ing the file ;)
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Measure the time it takes to execute a t-sql query
...ME=N'TestProc';
SELECT CONVERT(TIME(3),DATEADD(ms,ROUND(last_elapsed_time/1000.0,0),0))
AS LastExecutionTime
FROM sys.dm_exec_procedure_stats
WHERE OBJECT_NAME(object_id,database_id)=@ProcName AND
(OBJECT_SCHEMA_NAME(object_id,database_id)=@SchemaName OR @SchemaName IS NULL) AND
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How to avoid the “divide by zero” error in SQL?
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SET ARITHABORT OFF
SET ANSI_WARNINGS OFF
So if you have something like 100/0 it will return NULL. I've only done this for simple queries, so I don't know how it will affect longer/complex ones.
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Center a position:fixed element
...ion: fixed;
width: 500px;
height: 200px;
top: 50%;
left: 50%;
margin-top: -100px; /* Negative half of height. */
margin-left: -250px; /* Negative half of width. */
Or, if you don't care about centering vertically and old browsers such as IE6/7, then you can instead also add left: 0 and right: 0 to...
Replace input type=file by an image
...;
<label for="file-input">
<img src="https://placehold.it/100/000000/ffffff?text=UPLOAD" style="pointer-events: none"/>
</label>
<input id="file-input" type="file" />
</div>
I have used visibility: hidden, width:0 instead of display: none for saf...
SQL Query to concatenate column values from multiple rows in Oracle
... PeterPeter
12.2k1010 gold badges6868 silver badges100100 bronze badges
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get and set in TypeScript
...cases where it won't work exactly the same as a var and i need to test all 100 places that use this var/prop?
– Adam Plocher
Nov 19 '18 at 11:51
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Python List vs. Array - when to use?
... Actually, I did a quick test - I timed summing a list with 100M entries and the same test with the corresponding array, and the list was actually about 10% faster.
– Moe
Oct 6 '08 at 20:45
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What's the best way to break from nested loops in JavaScript?
... Are you guys really arguing about whether checking a single boolean value 10000 times is fast or slow? try 100 million times /sigh
– fabspro
May 2 at 10:46
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Why is it not possible to extend annotations in Java?
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+100
About the reason why it wasn't designed that way you can find the answer in the JSR 175 Design FAQ, where it says:
Why don’t ...