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Update one MySQL table with values from another
...wired00! This works perfectly. The tables are quite large (original is 100,000+ entries and tobeupdated 10,000+), so I took your and noodl's advice about the indexes and the whole query now finishes in under a second. I can't believe the difference!? Thanks so much for your help; I've learnt a lot!
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Event binding on dynamically created elements?
...ower overhead when many elements must be monitored. On a data table with 1,000 rows in its tbody, the first code example attaches a handler to 1,000 elements.
A delegated-events approach (the second code example) attaches an event handler to only one element, the tbody, and the event only needs to ...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...放源代码，为APP编程带来更多可能。App Store目前有超过15000个应用是用Swift来开发的，越来越多的应用采用了苹果自家的编程语言。新的Swift 2语言发布，除了编译性能的提升，各种新功能也将有效提升开发者效率。
在今年晚些...
NoSQL (MongoDB) vs Lucene (or Solr) as your database
...decreased so much so you started thinking about adding MongoDB? (Was it 10,000 docs or 10,000,000 docs?)
– KajMagnus
Jul 2 '13 at 22:01
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How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake
...r GNU/Linux 2.6.9, not stripped
$ ldd testc
linux-vdso.so.1 => (0x00007fff227ff000)
libc.so.6 => /lib64/libc.so.6 (0x000000391f000000)
/lib64/ld-linux-x86-64.so.2 (0x000000391ec00000)
$ gcc -m32 test.c -o testc
$ file testc
testc: ELF 32-bit LSB executable, Intel 80386, version 1...
sql primary key and index
... you use this query:
SELECT ID, Name, Address FROM MyTable WHERE ID > 1000
SQL Server will give you the result only using the index you've created and it'll not read anything from the actual table.
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How can I convert byte size into a human-readable format in Java?
...matting byte size to human readable format | Programming.Guide
SI (1 k = 1,000)
public static String humanReadableByteCountSI(long bytes) {
if (-1000 < bytes && bytes < 1000) {
return bytes + " B";
}
CharacterIterator ci = new StringCharacterIterator("kMGTPE");
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Clone contents of a GitHub repository (without the folder itself)
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edited Jun 3 '11 at 8:31
answered Jun 3 '11 at 8:18
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Validating IPv4 addresses with regexp
... this is the most accurate and strict regex, it doesn't accept things like 000.021.01.0. it seems like most other answers here do and require additional regex to reject cases similar to that one - i.e. 0 starting numbers and an ip that ends with a .
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SVG fill color transparency / alpha?
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Abhi Beckert
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answered May 18 '11 at 9:32
Williham TotlandWi...