大约有 44,000 项符合查询结果（耗时：0.0724秒） [XML]
select count(*) from table of mysql in php
I am able to get both the value and row of the mysql query result.
18 Answers
18
...
How to present a simple alert message in java?
...
@mre I guess this is either a joke or you're misunderstanding "verbosity"?
– Dónal
Feb 2 '12 at 20:34
36
...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...one this exact task before. But it was mainly to measure power consumption and CPU temperatures. The following code (which is fairly long) achieves close to optimal on my Core i7 2600K.
The key thing to note here is the massive amount of manual loop-unrolling as well as interleaving of multiplies a...
Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
...th a condition like data[c] & 0x80 or so that can be true for positive and negative values?). I had compilers make invalid optimisations (for example, a couple of years ago, I had an ICC (11.0, iirc) use signed-32-bit-int-to-double conversion in 1.0/n where n was an unsigned int. Was about twice...
How to store decimal values in SQL Server?
...
That gives you a total of 18 digits, 4 of which after the decimal point (and 14 before the decimal point).
share
|
improve this answer
|
follow
|
...
How to align checkboxes and their labels consistently cross-browsers
...stantly. How do folks around Stack Overflow vertically align checkboxes and their labels consistently cross-browser ? Whenever I align them correctly in Safari (usually using vertical-align: baseline on the input ), they're completely off in Firefox and IE. Fix it in Firefox, and Safari a...
Create and append dynamically
...id='block'> you've created. You just need to create another <div> and call appendChild().
// Your existing code unmodified...
var iDiv = document.createElement('div');
iDiv.id = 'block';
iDiv.className = 'block';
document.getElementsByTagName('body')[0].appendChild(iDiv);
// Now create an...
What is 'Currying'?
I've seen references to curried functions in several articles and blogs but I can't find a good explanation (or at least one that makes sense!)
...
Why do you not use C for your web apps?
...different web servers this morning when I came across G-WAN . As I understand, its a web server written in C and you have to make use of it by writing your websites/webapps in C. One clear benefit is speed as the G-WAN site suggests.
...
Determine the type of an object?
...ry, or something else? I am getting an object back that may be either type and I need to be able to tell the difference.
13...