大约有 38,000 项符合查询结果（耗时：0.0581秒） [XML]
Fastest way to count exact number of rows in a very large table?
... (NOLOCK)
-- NOLOCK here is for me only to let me test for this answer: no more, no less
1 runs, 5:46 minutes, count = 1,401,659,700
--Note, sp_spaceused uses this DMV
SELECT
Total_Rows= SUM(st.row_count)
FROM
sys.dm_db_partition_stats st
WHERE
object_name(object_id) = 'MyBigtable' AND ...
Can I delete a git commit but keep the changes?
...
I get More? after doing this. Whatever I type in at that prompt gives me fatal: ambiguous argument 'HEADwhateverItypedIn': unknown revision or path not in the working tree.
– DaAwesomeP
Jan 27...
How to mkdir only if a directory does not already exist?
...'t exist.
Some implementation like GNU mkdir include mkdir --parents as a more readable alias, but this is not specified in POSIX/Single Unix Specification and not available on many common platforms like macOS, various BSDs, and various commercial Unixes, so it should be avoided.
If you want an er...
Git Push ERROR: Repository not found
...
|
show 9 more comments
142
...
What's the rationale for null terminated strings?
...nother relevant quote: "...the semantics of strings are fully subsumed by more general rules governing all arrays, and as a result the language is simpler to describe..."
– AShelly
Nov 13 '15 at 17:41
...
Assembly code vs Machine code vs Object code?
...ds to new machine code and executes them. Modern interpreters are now much more complicated: evaluating whole sections of source code at a time, caching and optimizing where possible, and handling complex memory management tasks.
One final type of program involves the use of a runtime-environment or...
Finding the index of elements based on a condition using python list comprehension
...t; 2)
[2, 5]
Note that I'm using lists here to mimic Matlab. It would be more Pythonic to use generators and iterators.
share
|
improve this answer
|
follow
...
PHP: How to remove specific element from an array?
...
|
show 2 more comments
153
...
Java8 Lambdas vs Anonymous classes
...
|
show 1 more comment
60
...
Disabling Chrome Autofill
... This is the only working fix now. False, and off, do not work anymore. Should be the correct answer now.
– David
Aug 7 '15 at 2:02
5
...