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Android List Preferences: have summary as selected value?
...ile. How would I set the summary of the list activity to the value that is selected?
11 Answers
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Xcode source automatic formatting
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this shouldn't be selected as the answer. the answer below from @ken is correct
– Ryan Angilly
Feb 8 '13 at 16:44
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SQLite UPSERT / UPDATE OR INSERT
... at this code:
INSERT INTO players (id, name, age)
VALUES (
coalesce((select id from players where user_name='steven'),
(select max(id) from drawings) + 1),
32)
The trick is in coalesce. It returns the id of the user 'steven' if any, and otherwise, it returns a new fresh id.
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How do I use jQuery's form.serialize but exclude empty fields
... looking over the jQuery docs and I think we can do this in one line using selectors:
$("#myForm :input[value!='']").serialize() // does the job!
Obviously #myForm gets the element with id "myForm" but what was less obvious to me at first was that the space character is needed between #myForm and...
Find (and kill) process locking port 3000 on Mac
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lsof -ti:3000 | xargs kill
The -t flag removes everything but the PID from the lsof output, making it easy to kill it.
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How to retrieve absolute path given relative
.../.bashrc
To avoid expanding symlinks, use realpath -s.
The answer comes from "bash/fish command to print absolute path to a file".
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How can i query for null values in entity framework?
...try in table
where entry.something.Equals(value)
select entry;
Workaround for Linq-to-Entities (ouch!):
var result = from entry in table
where (value == null ? entry.something == null : entry.something == value)
select entry;
This is a nasty b...
Reading and writing binary file
...he following code, but the buffer only stores a couple of ASCII characters from the first line in the file and nothing else.
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How to get label of select option with jQuery?
The value can be retrieved by $select.val() .
11 Answers
11
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Concatenate multiple result rows of one column into one, group by another column [duplicate]
...Simpler with the aggregate function string_agg() (Postgres 9.0 or later):
SELECT movie, string_agg(actor, ', ') AS actor_list
FROM tbl
GROUP BY 1;
The 1 in GROUP BY 1 is a positional reference and a shortcut for GROUP BY movie in this case.
string_agg() expects data type text as input. Other ...