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SQLite INSERT - ON DUPLICATE KEY UPDATE (UPSERT)
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answered Nov 1 '18 at 10:23
szmate1618szmate1618
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For loop example in MySQL
...e procedure load_foo_test_data()
begin
declare v_max int unsigned default 1000;
declare v_counter int unsigned default 0;
truncate table foo;
start transaction;
while v_counter < v_max do
insert into foo (val) values ( floor(0 + (rand() * 65535)) );
set v_counter=v_counter+1;
en...
Delete element in a slice
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edited Oct 14 '18 at 10:23
flornquake
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answer...
Angularjs if-then-else construction in expression
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Rafael Almeida
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answered May 16 '13 at 11:16
Andre GoncalvesAnd...
JavaScript variables declare outside or inside loop?
...ou've got yourself an accidental global.
In particular:
for (var i; i<100; i++)
do something;
for (var i; i<100; i++)
do something else;
Crockford will recommend you remove the second var (or remove both vars and do var i; above), and jslint will whinge at you for this. But IMO it...
Can you have if-then-else logic in SQL? [duplicate]
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106
You can make the following sql query
IF ((SELECT COUNT(*) FROM table1 WHERE project = 1) >...
Calculate business days
...ss days" in PHP. For example, Friday 12/5 + 3 business days = Wednesday 12/10.
36 Answers
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Float vs Decimal in ActiveRecord
... a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270...
Batch not-equal (inequality) operator
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answered Sep 14 '09 at 13:10
Frank BollackFrank Bollack
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How to stop a JavaScript for loop?
...is a good approach. Thanks @T.J. Crowder
– techloris_109
Sep 13 '17 at 7:35
@T.J. Crowder which statement is a good ap...