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MongoDB or CouchDB - fit for production? [closed]
...mongo in production for over a year now. They are using it for everything from users and blog posts, to every image on the site.
shopwiki is using it for a few things including real time analytics and a caching layer. They are doing over 1000 writes per second to a fairly large database.
If you g...
How to find the size of an array in postgresql
...ikely) and are running PostgreSQL 9.4 or higher, you can use cardinality:
SELECT cardinality(id) FROM example;
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How Do I Get the Query Builder to Output Its Raw SQL Query as a String?
...at:
array(1) {
[0]=>
array(3) {
["query"]=>
string(21) "select * from "users""
["bindings"]=>
array(0) {
}
["time"]=>
string(4) "0.92"
}
}
(Thanks to Joshua's comment below.)
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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both
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I'm not sure how this is different from @AndreG answer
– Alastair McCormack
Jan 18 '18 at 10:28
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Is there Unicode glyph Symbol to represent “Search” [closed]
...
Displayed correct at Chrome OS - screenshots from this system.
༗ U+0F17
⌕ U+2315
ᰄ U+1C04
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How to find a table having a specific column in postgresql
...
you can query system catalogs:
select c.relname
from pg_class as c
inner join pg_attribute as a on a.attrelid = c.oid
where a.attname = <column name> and c.relkind = 'r'
sql fiddle demo
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Intelli J IDEA takes forever to update indices
...ks perfectly. Thanks for the solution friends.
Just:
Open IntelliJ IDEA
Select the File menu
Select the Invalidate Caches / Restart... menu.
Once selected you get a pop-up with a bunch of options.
Select Invalidate and Restart
and before doing that make sure you saved all your changes else it mig...
List tables in a PostgreSQL schema
...
You can select the tables from information_schema
SELECT * FROM information_schema.tables
WHERE table_schema = 'public'
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How do I use Java to read from a file that is actively being written to?
...ng will help you achieve the same.
To run this program you will launch it from command prompt/terminal window and pass the file name to read. It will read the file unless you kill the program.
java FileReader c:\myfile.txt
As you type a line of text save it from notepad and you will see the text ...
Default behavior of “git push” without a branch specified
...n control the default behavior by setting push.default in your git config. From the git-config(1) documentation:
push.default
Defines the action git push should take if no refspec is given on the command line, no refspec is configured in the remote, and no refspec is implied by any of the options...