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Formatting Numbers by padding with leading zeros in SQL Server
...hatever your total length needs to be:
SELECT REPLICATE('0',6-LEN(EmployeeId)) + EmployeeId
If the column is an INT, you can use RTRIM to implicitly convert it to a VARCHAR
SELECT REPLICATE('0',6-LEN(RTRIM(EmployeeId))) + RTRIM(EmployeeId)
And the code to remove these 0s and get back the 'rea...
How to detect UI thread on Android?
Is there a robust way to detect if Thread.currentThread() is the Android system UI thread in an application?
I would like to put some asserts in my model code that asserts that only one thread ( eg the ui thread) accesses my state, to assure that no kind of synchronization is necessary.
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Spring Data JPA find by embedded object property
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This method name should do the trick:
Page<QueuedBook> findByBookIdRegion(Region region, Pageable pageable);
More info on that in the section about query derivation of the reference docs.
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How to get an element's top position relative to the browser's viewport?
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This may not work correctly when use browser zoom (Android Chrome). Solution from @rism (see below)works in this case
– Dmitry
Nov 8 '16 at 9:20
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How to handle button clicks using the XML onClick within Fragments
Pre-Honeycomb (Android 3), each Activity was registered to handle button clicks via the onClick tag in a Layout's XML:
1...
select2 - hiding the search box
... is superfluous and looks a little silly being present. Is it possible to hide it somehow? I took a look through the documentation online and couldn't find any options for this in the constructor.
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'dragleave' of parent element fires when dragging over children elements
...e and I've attached the dragenter and dragleave events to the <div id="dropzone"> element.
22 Answers
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Create a CSS rule / class with jQuery at runtime
...rs all capabilities of CSS, but so far it works for me. If it doesn't, consider it a starting points for your own needs. :)
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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
..., something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country (id) ON DELETE NO
ACTION ON UPDATE NO ACTION
Now simply issue an:
alter table region drop foreign key
region_ibfk_1;
And finally an:
alter table region drop column
country_id;
And ...
mysql Foreign key constraint is incorrectly formed error
I have two tables, table1 is the parent table with a column ID and table2 with a column IDFromTable1 (not the actual name) when I put a FK on IDFromTable1 to ID in table1 I get the error Foreign key constraint is incorrectly formed error . I would like to delete table 2 record if tab...