大约有 41,760 项符合查询结果（耗时：0.0345秒） [XML]
Cause of a process being a deadlock victim
I have a process with a Select which takes a long time to finish, on the order of 5 to 10 minutes. I am currently not using NOLOCK as a hint to the MS SQL database engine. At the same time we have another process doing updates and inserts into the same database and same tables. The first pr...
Is there a version control system for database structure changes?
...
22 Answers
22
Active
...
Why do you need to create a cursor when querying a sqlite database?
I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd.
...
When do I really need to use atomic instead of bool? [duplicate]
Isn't atomic<bool> redundant because bool is atomic by nature? I don't think it's possible to have a partially modified bool value. When do I really need to use atomic<bool> instead of bool ?
...
Factors in R: more than an annoyance?
One of the basic data types in R is factors. In my experience factors are basically a pain and I never use them. I always convert to characters. I feel oddly like I'm missing something.
...
One Activity and all other Fragments [closed]
I am thinking of implementing one screen with Activity and all other sreens with Fragments and managing all the fragments thru the activity .
...
Index all *except* one item in python
Is there a simple way to index all elements of a list (or array, or whatever) except for a particular index? E.g.,
9 An...
How do I declare a 2d array in C++ using new?
How do i declare a 2d array using new?
24 Answers
24
...
Calculating frames per second in a game
What's a good algorithm for calculating frames per second in a game? I want to show it as a number in the corner of the screen. If I just look at how long it took to render the last frame the number changes too fast.
...
What is sandboxing?
I have read the Wikipedia article , but I am not really sure what it means, and how similar it is to version control .
5...