大约有 47,000 项符合查询结果(耗时:0.0574秒) [XML]
CAP theorem - Availability and Partition Tolerance
While I try to understand the "Availability" (A) and "Partition tolerance" (P) in CAP, I found it difficult to understand the explanations from various articles.
...
How to call a stored procedure from Java and JPA
I am writing a simple web application to call a stored procedure and retrieve some data.
Its a very simple application, which interacts with client's database. We pass employee id and company id and the stored procedure will return employee details.
...
Check if a string is null or empty in XSLT
...] null or empty" as inferred from the question, including it's pseudo-code and my own early experience with XSLT. I.e., "What is the equivalent of the following Java?":
!(categoryName == null || categoryName.equals(""))
For more details e.g., distinctly identifying null vs. empty, see johnvey's a...
How to convert a currency string to a double with jQuery or Javascript?
... .00 trailing. Otherwise valid representations of currency such as "$1100" and "$1100." will be reduced by two orders of magnitude.
– Brian M. Hunt
Feb 8 '13 at 0:43
21
...
Search for executable files using find command
What type of parameter/flag can I use with the Unix find command so that I search executables?
10 Answers
...
How can I add new keys to a dictionary?
...y by assigning a value
to that key. If the key doesn't exist, it's added and points to that
value. If it exists, the current value it points to is overwritten.
—R. Navega
share
|
improve th...
Fastest way to count exact number of rows in a very large table?
...ECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
25 Answers
...
Heap vs Binary Search Tree (BST)
What is the difference between a heap and BST?
8 Answers
8
...
What are the differences between the BLOB and TEXT datatypes in MySQL?
What is blob and what is text ? What are the differences?
6 Answers
6
...
How are parameters sent in an HTTP POST request?
...or a post looks like one for a get, but with the verb POST instead of GET, and a content type value (and an optional content length value) as the request has content (body). Every type of request has a header, some types also have a body.
– Guffa
Jun 28 '16 at ...