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How do you find the row count for all your tables in Postgres
...vy activity, but is generally a good estimate:
SELECT schemaname,relname,n_live_tup
FROM pg_stat_user_tables
ORDER BY n_live_tup DESC;
That can also show you how many rows are dead, which is itself an interesting number to monitor.
The third way is to note that the system ANALYZE command, ...
How to edit log message already committed in Subversion?
...t modify a remote
repository using this command.
$ svnadmin setlog REPOS_PATH -r N FILE
where REPOS_PATH is the repository
location, N is the revision number
whose log message you wish to change,
and FILE is a file containing the new
log message. If the
"pre-revprop-change" hook i...
What's the difference between EscapeUriString and EscapeDataString?
...)*+,;=
For completeness, the unreserved characters are alphanumeric and -._~
Both methods escape characters that are neither reserved nor unreserved.
I disagree with the general notion that EscapeUriString is evil. I think a method that escapes only illegal characters (such as spaces) and not res...
Android: checkbox listener
... for kotlin satView.setOnCheckedChangeListener { buttonView, _ -> if (buttonView.isChecked) { // perform action } else { // perform action } }
– Aminul Haque Aome
Nov 1...
convert double to int
...safe function because it accepts just anything.
– Ant_222
Jul 5 '16 at 14:48
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Why does this async action hang?
...lock? Imagine you just have this code:
var task = dataSource.ExecuteAsync(_ => 42);
var result = task.Result;
So the first line kicks off the asynchronous work. The second line then blocks the UI thread. So when the runtime wants to run the "return result" line back on the UI thread, it can't ...
Checking network connection
...
Perhaps you could use something like this:
import urllib2
def internet_on():
try:
urllib2.urlopen('http://216.58.192.142', timeout=1)
return True
except urllib2.URLError as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. ...
How to replace a character by a newline in Vim
...using GVim on Windows, and I need neither the :set magic (it's not in my ~/_vimrc either) or ctrl-q. Just a simple ctrl-v followed by enter creates the ^M character for me just fine.
– Chris Phillips
Sep 14 '11 at 21:02
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Inserting data into a temporary table
...SERT INTO #TempTable (ID, Date, Name)
SELECT id, date, name
FROM physical_table
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Java and SQLite [closed]
...zentus)
Another Java - SWIG wrapper. It only works on Win32. http://rodolfo_3.tripod.com/index.html
sqlite-java-shell: 100% pure Java port of the sqlite3 commandline shell built with NestedVM. (This is not a JDBC driver).
SQLite JDBC Driver for Mysaifu JVM: SQLite JDBC Driver for Mysaifu JVM and SQL...