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MySQL - UPDATE multiple rows with different values in one query
...E table_users
SET cod_user = (case when user_role = 'student' then '622057'
when user_role = 'assistant' then '2913659'
when user_role = 'admin' then '6160230'
end),
date = '12082014'
WHERE user_role in ('student',...
How do I extend a class with c# extension methods?
...46
DonO
8051111 silver badges2626 bronze badges
answered Jul 27 '09 at 13:45
Andrew HareAndrew Hare
...
Is JavaScript a pass-by-reference or pass-by-value language?
.... Consider this example:
function changeStuff(a, b, c)
{
a = a * 10;
b.item = "changed";
c = {item: "changed"};
}
var num = 10;
var obj1 = {item: "unchanged"};
var obj2 = {item: "unchanged"};
changeStuff(num, obj1, obj2);
console.log(num);
console.log(obj1.item);
console...
Create a table without a header in Markdown
...3
DRCB
2,0311010 silver badges1919 bronze badges
answered Jul 9 '13 at 8:28
adiusadius
...
Use dynamic variable names in JavaScript
...
360
Since ECMA-/Javascript is all about Objects and Contexts (which, are also somekind of Object), e...
How to sort an array of integers correctly
...
1306
By default, the sort method sorts elements alphabetically. To sort numerically just add a new m...
Is there a Python equivalent to Ruby's string interpolation?
...h that version of Python (which is scheduled to be released by the end of 2016), you will be able to include expressions in "f-strings", e.g.
name = "Spongebob Squarepants"
print(f"Who lives in a Pineapple under the sea? {name}.")
Prior to 3.6, the closest you can get to this is
name = "Spongebo...
Finding duplicate values in a SQL table
...consistent:
Recent PostgreSQL supports it.
SQL Server (as at SQL Server 2017) still requires all non-aggregated columns in the GROUP BY.
MySQL is unpredictable and you need sql_mode=only_full_group_by:
GROUP BY lname ORDER BY showing wrong results;
Which is the least expensive aggregate function...
Capture iframe load complete event
...
203
<iframe> elements have a load event for that.
How you listen to that event is up to yo...