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Heroku Postgres - terminate hung query (idle in transaction)
... sql:
SELECT pid , query, * from pg_stat_activity
WHERE state != 'idle' ORDER BY xact_start;
(The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activity). You'll find the pid in the first (left) column, and the first (top) row is likely to...
How to write trycatch in R
...l, warn=FALSE) followed by message("Everything worked") followed by out in order to make this the last object that is actually returned
– Rappster
Apr 23 '15 at 12:28
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SELECT INTO a table variable in T-SQL
..., if you don't declare the columns explicitly, then they are mapped in the order declared in the original create table statement, just like select * does. So, location in the select statement is mapped to oldlocation in the @userData table because location is in position 2 in the result set of the ...
Java - get pixel array from image
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People noticing a color difference and/or incorrect byte ordering: @Mota's code assumes a BGR ordering. You should check the incoming BufferedImage's type e.g. TYPE_INT_RGB or TYPE_3BYTE_BGR and handle appropriately. This is one of the things that getRGB() does for you, that makes ...
How to modify the keyboard shortcuts in Eclipse IDE?
... less says it all. Specifically, I've become increasingly annoyed that in order to run an ant script I have to use Alt + Shift + x , q . But I think If I had this power I would many things I would change the shortcuts for/add shortcuts for things that don't currently have them.
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Mercurial Eclipse Plugin
... Its disappointing that you need to sign up at java forge in order to download this plugin
– Chris Gow
Nov 26 '10 at 14:34
6
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Negative matching using grep (match lines that do not contain foo)
...ally quite cool. You don't even have to learn the complete awk language in order to group regexp with logical operators. Thanks for this answer!
– Peter T.
Sep 17 '18 at 14:59
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How to add row in JTable?
...TableModel behind the JTable handles all of the data behind the table. In order to add and remove rows from a table, you need to use a DefaultTableModel
To create the table with this model:
JTable table = new JTable(new DefaultTableModel(new Object[]{"Column1", "Column2"}));
To add a row:
Defa...
What does `unsigned` in MySQL mean and when to use it?
...enting the 'sizes' of things, like the quantity of a particular item on an order, or the distance between two locations, will typically be unsigned
– SingleNegationElimination
Oct 9 '10 at 4:28
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How to check identical array in most efficient way? [duplicate]
...t to check if the two arrays are identical
(not content wise, but in exact order).
2 Answers
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