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How do you create a random string that's suitable for a session ID in PostgreSQL?
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I found another solution that uses ORDER BY random(). Which is faster?
– ma11hew28
Feb 10 '14 at 15:17
1
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Where to place $PATH variable assertions in zsh?
...hWiki ZSH link says:
At login, Zsh sources the following files in this order:
/etc/profile
This file is sourced by all Bourne-compatible shells upon login
This implys that /etc/profile is always read by zsh at login - I haven't got any experience with the Arch Linux project; the wiki may b...
What is time_t ultimately a typedef to?
...ng as articles aren't deleted you can always have a look at the history in order to find the correct version.
– Zeta
Mar 13 '13 at 7:51
4
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Telling gcc directly to link a library statically
It feels strange to me to use -Wl,-Bstatic in order to tell gcc which libraries I want to link with statically. After all I'm telling gcc directly all other information about linking with libraries ( -Ldir , -llibname ).
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Exact difference between CharSequence and String in java [duplicate]
...\n" +
"WHERE \"CITY\" = 'INDIANAPOLIS'\n" +
"ORDER BY \"EMP_ID\", \"LAST_NAME\";\n";
Using a "two-dimensional" block of text
String query = """
SELECT "EMP_ID", "LAST_NAME" FROM "EMPLOYEE_TB"
WHERE "CITY" = 'INDIANAPOLIS'
...
Enable 'xp_cmdshell' SQL Server
...iguration settings for show advanced options and xp_cmdshell to 1, in that order.
Adding to this, if you want to preserve the previous values, you can read them from sys.configurations first, then apply them in reverse order at the end. We can also avoid unnecessary reconfigure calls:
declare @pr...
What is the best way to remove accents (normalize) in a Python unicode string?
...age encoding, and that included bytes >127. I'll change my function in order to remove the conversion to unicode: it will bomb more clearly if a non-unicode string is passed.
– MiniQuark
Jun 11 '13 at 10:11
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Can I have multiple primary keys in a single table?
...,'lax'),('mammal','whale'),
('bird','ostrich');
SELECT * FROM animals ORDER BY grp,id;
Which returns:
+--------+----+---------+
| grp | id | name |
+--------+----+---------+
| fish | 1 | lax |
| mammal | 1 | dog |
| mammal | 2 | cat |
| mammal | 3 | whale |
| bird ...
Making a private method public to unit test it…good idea?
...stacks to the test, you could test that the class returns the pages in the order you expect it to after calling first() or last().
For example, consider this pseudo-code:
public class NavigationTest {
private Navigation nav;
@Before
public void setUp() {
// Set up nav so the ...
Python: Tuples/dictionaries as keys, select, sort
...a[k] # prints 'banana 24', etc
Sorting works because tuples have natural ordering if their components have natural ordering.
With keys as rather full-fledged objects, you just filter by k.color == 'blue'.
You can't really use dicts as keys, but you can create a simplest class like class Foo(obj...