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elasticsearch v.s. MongoDB for filtering application [closed]
...tic as the sole data store is not a good option for us, as we can't update select fields; we would need to re-index a document in its' entirety. This is not an elastic limitation, this is how Lucene works, the underlying search engine behind elastic. In your case, the fact that records won't be chan...
adb not finding my device / phone (MacOS X)
...you can get to it via the Apple Menu in the top left corner of the screen, select "About this Mac", then click the "More Info..." button. Screen grab here:
Expand the "Hardware" tree, select "USB", then look for your target device. In the above example, my device is named "SomeDevice" (I did tha...
Where does mongodb stand in the CAP theorem?
...
MongoDB selects Consistency over Availability whenever there is a Partition. What it means is that when there's a partition(P) it chooses Consistency(C) over Availability(A).
To understand this, Let's understand how MongoDB does rep...
The backend version is not supported to design database diagrams or tables
...se the version designed for your database version. You can use the command select @@version to check which version of sql server you are actually using. This version is reported in a way that is easier to interpret than that shown in the Help About in SSMS.
Using a newer version of SSMS than your...
What does the * * CSS selector do?
...
Just like any other time you put two selectors one after another (for example li a), you get the descendant combinator. So * * is any element that is a descendant of any other element — in other words, any element that isn't the root element of the whole docum...
How to step back in Eclipse debugger?
..."Using Standard Create Process Launcher" and there will be a hyperlink to "Select other...". Click this and make sure "Use configuration specific settings" is checked then select "GDB (GSF) Create Process Launcher" and click okay. "Using GDB (GSF) Create Process Launcher" will now be displayed at th...
How do I set the default font size in Vim?
...n supports it)
set guifont=*
This will pop up a menu that allows you to select the font. After selecting the font, type
set guifont?
To show what the current guifont is set to. After that copy that line into your vimrc or gvimrc. If there are spaces in the font add a \ to escape the space.
se...
string.ToLower() and string.ToLowerInvariant()
... cultures. A Frenchman does not write SÉLECTIONNEZ x DE books instead of SELECT X FROM books. However, in order for the above code to work, a Turkish person would need to write SELECT x FROM books WHERE Author LİKE '%Adams%' (note the dot above the capital i, almost impossible to see). This wou...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
...dated) values(null, null);
Query OK, 1 row affected (0.06 sec)
mysql> select * from test_table;
+----+---------------------+---------------------+
| id | stamp_created | stamp_updated |
+----+---------------------+---------------------+
| 2 | 2009-04-30 09:44:35 | 2009-04-30 09:4...
Difference between a user and a schema in Oracle?
...cription VARCHAR2(50),
CONSTRAINT test_tab_pk PRIMARY KEY (id)
);
GRANT SELECT ON test_tab TO schema_ro_role;
GRANT SELECT, INSERT, UPDATE, DELETE ON test_tab TO schema_rw_role;
Notice how the privileges are granted to the relevant roles. Without
this, the objects would not be visible to ...