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How to differ sessions in browser-tabs?
In a web-application implemented in java using JSP and Servlets; if I store information in the user session, this information is shared from all the tabs from the same browser. How to differ sessions in the browser-tabs?
In this example:
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SQL Server loop - how do I loop through a set of records
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By using T-SQL and cursors like this :
DECLARE @MyCursor CURSOR;
DECLARE @MyField YourFieldDataType;
BEGIN
SET @MyCursor = CURSOR FOR
select top 1000 YourField from dbo.table
where StatusID = 7
OPEN @M...
Flexbox and Internet Explorer 11 (display:flex in ?)
I am planning to move away from "floaty" layouts and use CSS flexbox for future projects. I was delighted to see that all major browsers in their current versions seem to support (in one way or another) flexbox.
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How can I render a list select box (dropdown) with bootstrap?
Is there anything out of the box that bootstrap supports to render a "regular" defacto drop down list select box? That is, where the drop down box is a list of values and if selected populate the contents of the list box?
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Change bundle identifier in Xcode when submitting my first app in IOS
I'm trying to submit my first app in iOS . I have entered iOS Provisioning Portal and I am about to create an app ID.
1...
How to obtain the number of CPUs/cores in Linux from the command line?
I have this script, but I do not know how to get the last element in the printout:
27 Answers
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MySQL - UPDATE query based on SELECT Query
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You can actually do this one of two ways:
MySQL update join syntax:
UPDATE tableA a
INNER JOIN tableB b ON a.name_a = b.name_b
SET validation_check = if(start_dts > end_dts, 'VALID', '')
-- where clause can go here
ANSI SQL syntax:
UPDATE tableA SET validation_check =
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SQL exclude a column using SELECT * [except columnA] FROM tableA?
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I agree with everyone... but if I was going to do something like this I might do it this way:
/* Get the data into a temp table */
SELECT * INTO #TempTable
FROM YourTable
/* Drop the columns that are not needed */
ALTER TABLE #TempTable
DROP COLUMN ColumnToDrop
/*...
What happens if you call erase() on a map element while iterating from begin to end?
In the following code I loop through a map and test if an element needs to be erased. Is it safe to erase the element and keep iterating or do I need to collect the keys in another container and do a second loop to call the erase()?
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Best way to center a on a page vertically and horizontally? [duplicate]
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The best and most flexible way
My demo on dabblet.com
The main trick in this demo is that in the normal flow of elements going from top to bottom, so the margin-top: auto is set to zero. However, an absolutely positioned element acts the same for distribution of free space, and simila...