大约有 24,000 项符合查询结果（耗时：0.0423秒） [XML]
Efficiently convert rows to columns in sql server
...or an efficient way to convert rows to columns in SQL server, I heard that PIVOT is not very fast, and I need to deal with lot of records.
...
How does a language expand itself? [closed]
I am learning C++ and I've just started learning about some of Qt 's capabilities to code GUI programs. I asked myself the following question:
...
How to create the perfect OOP application [closed]
Recently I was trying for a company ‘x’. They sent me some set of questions and told me to solve only one.
12 Answers
...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
What is the proper way to get a list of all available serial ports/devices on a Linux system?
12 Answers
...
Difference between DTO, VO, POJO, JavaBeans?
...n is a class that follows the JavaBeans conventions as defined by Sun. Wikipedia has a pretty good summary of what JavaBeans are:
JavaBeans are reusable software components for Java that can be manipulated visually in a builder tool. Practically, they are classes written in the Java programming ...
Targeting both 32bit and 64bit with Visual Studio in same solution/project
I have a little dilemma on how to set up my visual studio builds for multi-targeting.
8 Answers
...
Mythical man month 10 lines per developer day - how close on large projects? [closed]
Everybody always says that they can beat the "10 lines per developer per day" from the "Mythical Man Month", and starting a project, I can usually get a couple hundred lines in in a day.
...
What does a Ajax call response like 'for (;;); { json data }' mean? [duplicate]
...tax being used on Facebook for Ajax calls. I'm confused on the for (;;); part in the beginning of response. What is it used for?
...
How can I create a table with borders in Android?
I use a table layout to display data as table, but I want a table with user-defined columns and rows with borders. Suggestions?
...
How can I get zoom functionality for images?
... common way to show a big image and enable the user to zoom in and out and pan the image?
13 Answers
...