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How do I find a “gap” in running counter with SQL?
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In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
SELECT TOP 1
i...
Remove trailing zeros
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You should put there 28 '#' chars, see blackwasp.co.uk/DecimalTrailingZeroes.aspx.
– Jaime Hablutzel
Jun 18 '17 at 16:29
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Replace all 0 values to NA
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but what if in the columns 6 and 7 - the datatype is char and no replacement should be done. In my problem, I need replacement only in columns 12 to 15 but the whole df has 21 columns (many must not be touched at all).
– userJT
Feb 20 '15 ...
jQuery If DIV Doesn't Have Class “x”
...y I need to do an if statement to see if $this doesn't contain the class '.selected'.
7 Answers
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How to get next/previous record in MySQL?
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next:
select * from foo where id = (select min(id) from foo where id > 4)
previous:
select * from foo where id = (select max(id) from foo where id < 4)
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ruby on rails f.select options with custom attributes
I have a form select statement, like this:
5 Answers
5
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Row Offset in SQL Server
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I would avoid using SELECT *. Specify columns you actually want even though it may be all of them.
SQL Server 2005+
SELECT col1, col2
FROM (
SELECT col1, col2, ROW_NUMBER() OVER (ORDER BY ID) AS RowNum
FROM MyTable
) AS MyDerivedTable...
Change select box option background color
I have a select box and I'm trying to change the background color of the options when the select box has been clicked and shows all the options.
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Remove outline from select box in FF
Is it possible to remove the dotted line surrounding a selected item in a select element?
12 Answers
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Changing selection in a select with the Chosen plugin
I'm trying to change the currently selected option in a select with the Chosen plugin.
4 Answers
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