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Postgres dump of only parts of tables for a dev snapshot
...r larger tables you can use the COPY command to pull out subsets...
COPY (SELECT * FROM mytable WHERE ...) TO '/tmp/myfile.tsv'
COPY mytable FROM 'myfile.tsv'
https://www.postgresql.org/docs/current/static/sql-copy.html
You should consider maintaining a set of development data rather than just ...
How to count the frequency of the elements in an unordered list?
...way you would a normal dict. If you really want a dict, however, you could convert it to a dict using dict(counter).
– unutbu
Mar 22 '15 at 0:46
1
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How to recognize USB devices in Virtualbox running on a Linux host? [closed]
...y success. It seems they are not detected by Virtualbox itself, since if I select the guest from the Virtualbox home (I'm using a Windows XP 3 guest), choose Settings -> USB -> Add filter from device, no devices is listed, even if an USB pen is attached and recognized by my Lubuntu 13.10. If i run t...
How to programmatically send SMS on the iPhone?
...t with predefined (prefill) body text. Thos body text should be the manual selection from 4 possible options. E.g. The app opens and pop-ups "select reason". Then 4 options are available. Next the user selects one of these 4 options and then an automatic SMS is sent having as body text the choice of...
What is a vertical tab?
... could be used to do line feed without a carriage return on devices with convert linefeed to carriage-return + linefeed.
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How to compare only Date without Time in DateTime types in Linq to SQL with Entity Framework?
...
DateTime dt1 = DateTime.Now.Date;
DateTime dt2 = Convert.ToDateTime(TextBox4.Text.Trim()).Date;
if (dt1 >= dt2)
{
MessageBox.Show("Valid Date");
}
else
{
MessageBox.Show("Invalid Date... Please Give Correct Date....");
}
...
Why does NULL = NULL evaluate to false in SQL server
...d and in the most varied contexts:
3.4 Arithmetic and NULLs 109
3.5 Converting Values to and from NULL 110
3.5.1 NULLIF() Function 110
6 NULLs: Missing Data in SQL 185
6.4 Comparing NULLs 190
6.5 NULLs and Logic 190
6.5.1 NULLS in Subquery Predicates 191
6.5.2 Standard SQL S...
How do I make my string comparison case insensitive?
...e best would be using s1.equalsIgnoreCase(s2): (see javadoc)
You can also convert them both to upper/lower case and use s1.equals(s2)
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sql server #region
...ck some stuff --end comment should be on next line
*/
--Very long query
SELECT * FROM FOO
SELECT * FROM BAR
END
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Eclipse: enable assertions
...to Preferences.
Choose Java, and then Installed JREs from the left panel.
Select your JRE, and then click the Edit... button in the right panel.
In the Default VM arguments field, add -ea.
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