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Efficient paging in SQLite with millions of records
...red field(s), and continue just after them when displaying the next page:
SELECT *
FROM MyTable
WHERE SomeColumn > LastValue
ORDER BY SomeColumn
LIMIT 100;
(This is explained with more detail on the SQLite wiki.)
When you have multiple sort columns (and SQLite 3.15 or later), you can use a ro...
Dynamically select data frame columns using $ and a character value
...and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic subset of cols , nether of these work
...
Using Chrome's Element Inspector in Print Preview Mode?
...versions).
Check the Emulate print media checkbox at the Rendering tab and select the Print media type.
Chrome v48+ (Thanks Alex for noticing):
Open the Developer Tools (CTRLSHIFTI or F12)
Click the Toggle device mode button in the left top corner (CTRLSHIFTM).
Make sure the console is shown by c...
Set cache-control for entire S3 bucket automatically (using bucket policies?)
...it can take some time.
Log in to AWS Management Console
Go into S3 bucket
Select all files by route
Choose "More" from the menu
Select "Change metadata"
In the "Key" field, select "Cache-Control" from the drop down menu
max-age=604800Enter (7 days) for Value
Press "Save" button
(thanks to @biplob ...
Printing the value of a variable in SQL Developer
...utput).
Press the "+" button at the top of the Dbms Output window and then select an open database connection in the dialog that opens.
In SQL*Plus:
SET SERVEROUTPUT ON
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Docker - how can I copy a file from an image to a host?
...
I don't know why this is not selected as the correct answer.
– CentAu
Apr 2 '19 at 16:14
1
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Best way to add “current” class to nav in Rails 3
... view: <%= link_to "Users", users_path, class: (controller?("users") ? 'selected' : nil) %> Really neat that it works for both /users and /users/new.
– Andreas
Feb 8 '14 at 23:42
...
Using str_replace so that it only acts on the first match?
...r downside is you have to use preg_quote() on the "needle" and escape meta-characters $ and \ in the replacement.
– Josh Davis
Aug 10 '09 at 2:53
32
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How can I create a keystore?
... the lifespan of your app.
4- On the Generate Signed APK Wizard window, select a keystore, a private key, and enter the passwords for both. Then click Next.
5- On the next window, select a destination for the signed APK and click Finish.
referance
http://developer.android.com/tools/publishing/a...
What is LINQ and what does it do? [closed]
...;string> result =
from c in myCustomers
where c.Name.StartsWith("B")
select c.Name;
Lambda Expressions - This is a shorthand for specifying a method. The C# compiler will translate each into either an anonymous method or a true System.Linq.Expressions.Expression. You really need to understand...