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How to select rows with no matching entry in another table?
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Here's a simple query:
SELECT t1.ID
FROM Table1 t1
LEFT JOIN Table2 t2 ON t1.ID = t2.ID
WHERE t2.ID IS NULL
The key points are:
LEFT JOIN is used; this will return ALL rows from Table1, regardless of whether or not there is a matching row in Table2.
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How to find out client ID of component for ajax update/render? Cannot find component with expression
The following code is inspired from PrimeFaces DataGrid + DataTable Tutorials and put into a <p:tab> of a <p:tabView> residing in a <p:layoutUnit> of a <p:layout> . Here is the inner part of the code (starting from p:tab component); the outer part is trivial.
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How to drop SQL default constraint without knowing its name?
...ame
from sys.tables t
join sys.default_constraints d on d.parent_object_id = t.object_id
join sys.columns c on c.object_id = t.object_id and c.column_id = d.parent_column_id
where t.name = @table_name
and t.schema_id = schema_id(@schema_name)
and c.name = @col_name
--print @Command
execu...
Resizing UITableView to fit content
...int from the storyboard and create @IBOutlet for it in the view controller file.
@IBOutlet var tableHeight: NSLayoutConstraint!
Then you can change the height for the table dynamicaly using this code:
override func viewWillLayoutSubviews() {
super.updateViewConstraints()
self.tableHeight?....
Python - json without whitespaces
...is a space after : but not after ,.
This is useful for diff'ing your JSON files (in version control such as git diff), where some editors will get rid of the trailing whitespace but python json.dump will add it back.
Note: This does not exactly answers the question on top, but I came here looking ...
How can I get the ID of an element using jQuery?
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The jQuery way:
$('#test').attr('id')
In your example:
$(document).ready(function() {
console.log($('#test').attr('id'));
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="test"...
Referencing a string in a string array resource with xml
...ut? If the title changes with user choice, why not just do it in the .java file. E.g. .setText(some_array[i]).
– user485498
Nov 12 '10 at 3:39
2
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How do I format a long integer as a string without separator in Java?
...his way. since it allows me to change the format in my language properties file.
– Pascal
Mar 5 '12 at 10:17
2
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Merge cells using EPPlus?
I'm using the EPPlus library to read/write Excel files: http://epplus.codeplex.com/
3 Answers
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Convert InputStream to BufferedReader
I'm trying to read a text file line by line using InputStream from the assets directory in Android.
3 Answers
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