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How to get ID of the last updated row in MySQL?
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240
I've found an answer to this problem :)
SET @update_id := 0;
UPDATE some_table SET column_name ...
Random / noise functions for GLSL
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+100
For very simple pseudorandom-looking stuff, I use this oneliner that I found on the internet somewhere:
float rand(vec2 co){
ret...
What is the difference between int, Int16, Int32 and Int64?
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10 Answers
10
Active
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How to dump a table to console?
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answered Feb 6 '12 at 22:30
Michal KottmanMichal Kottman
15k22 gold badges4040 silver badges6060 bronze badges
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Highlight a word with jQuery
...light = function(pat) {
function innerHighlight(node, pat) {
var skip = 0;
if (node.nodeType == 3) {
var pos = node.data.toUpperCase().indexOf(pat);
if (pos >= 0) {
var spannode = document.createElement('span');
spannode.className = 'highlight';
var middlebit = node.splitTe...
Generate random numbers uniformly over an entire range
... std::uniform_int_distribution. Here's an example:
const int range_from = 0;
const int range_to = 10;
std::random_device rand_dev;
std::mt19937 generator(rand_dev());
std::uniform_int_distribution<int> distr(range_from, range_to);
std::cout <<...
Calling JMX MBean method from a shell script
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106
The following command line JMX utilities are available:
jmxterm - seems to be the most fully ...
Pandas DataFrame Groupby two columns and get counts
...In [56]: df.groupby(['col5','col2']).size().reset_index().groupby('col2')[[0]].max()
Out[56]:
0
col2
A 3
B 2
C 1
D 3
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How to check for null in Twig?
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answered Dec 23 '10 at 16:12
NikiCNikiC
93.7k3030 gold badges176176 silver badges217217 bronze badges
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PDO support for multiple queries (PDO_MYSQL, PDO_MYSQLND)
...s of statements emulation
$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, 0);
$sql = "
DELETE FROM car;
INSERT INTO car(name, type) VALUES ('car1', 'coupe');
INSERT INTO car(name, type) VALUES ('car2', 'coupe');
";
$db->exec($sql);
Using statements
$db = new PDO("mysql:host=localhost;dbname...