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How to generate a random string in Ruby
I'm currently generating an 8-character pseudo-random uppercase string for "A" .. "Z":
50 Answers
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How do I change an HTML selected option using JavaScript?
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document.getElementById('personlist').getElementsByTagName('option')[11].selected = 'selected'
to
document.getElementById('personlist').value=Person_ID;
share
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What does it mean by select 1 from table?
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SELECT 1 FROM TABLE_NAME means, "Return 1 from the table". It is pretty unremarkable on its own, so normally it will be used with WHERE and often EXISTS (as @gbn notes, this is not necessarily best practice, it is, however, c...
is it possible to select EXISTS directly as a bit?
...workaround.
If you must return a conditional bit 0/1 another way is to:
SELECT CAST(
CASE WHEN EXISTS(SELECT * FROM theTable where theColumn like 'theValue%') THEN 1
ELSE 0
END
AS BIT)
Or without the cast:
SELECT
CASE
WHEN EXISTS( SELECT 1 FROM theTable WHERE theColumn LI...
What is the best way to test for an empty string in Go?
...tever, since len() has to execute to completion.
– Richard
Apr 30 '18 at 11:25
Have you looked at the code generation ...
MySQL INNER JOIN select only one row from second table
...have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help
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MySQL: Insert record if not exists in table
...oDB;
Insert a record:
INSERT INTO table_listnames (name, address, tele)
SELECT * FROM (SELECT 'Rupert', 'Somewhere', '022') AS tmp
WHERE NOT EXISTS (
SELECT name FROM table_listnames WHERE name = 'Rupert'
) LIMIT 1;
Query OK, 1 row affected (0.00 sec)
Records: 1 Duplicates: 0 Warnings: 0
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Is there a float input type in HTML5?
...Elfayer's edit: quotes are optional in HTML unless you want to use certain characters. Personally I prefer to omit them where possible for better readability.
– Dave
Apr 2 '14 at 10:02
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Escaping HTML strings with jQuery
... This isn't cross browser safe if your string has whitespaces and \n \r \t chars in it
– nivcaner
Dec 4 '10 at 17:31
20
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Convert string to binary in python
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What about converting more-than-one-byte chars, like β, e.g., which seems to me represented by 11001110 10110010 internally?
– Sergey Bushmanov
Mar 25 '17 at 20:18
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