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How to create empty text file from a batch file?
Can somebody remember what was the command to create an empty file in MSDOS using BAT file?
13 Answers
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Why does ContentResolver.requestSync not trigger a sync?
...n a ContentAuthority and an account. It externally references another xml file (call it whatever you like, something relevant to your app.) Let's look at sync_myapp.xml:
<?xml version="1.0" encoding="utf-8" ?>
<sync-adapter
xmlns:android="http://schemas.android.com/apk/res/android"...
MySQL Multiple Joins in one query?
... dashboard_data.headline, dashboard_data.message, dashboard_messages.image_id, images.filename
FROM dashboard_data
INNER JOIN dashboard_messages
ON dashboard_message_id = dashboard_messages.id
INNER JOIN images
ON dashboard_messages.image_id = images.image_id
However be ...
SQL Server indexes - ascending or descending, what difference does it make?
...y Optimiser's point of view.
For the table definition
CREATE TABLE T1( [ID] [int] IDENTITY NOT NULL,
[Filler] [char](8000) NULL,
PRIMARY KEY CLUSTERED ([ID] ASC))
The Query
SELECT TOP 10 *
FROM T1
ORDER BY ID DESC
Uses an ordered scan with scan direction BAC...
How to enable file sharing for my app?
...hotos. How could I enable it so that users can see my app in iTunes in the File Sharing tab and then just drag+drop photos to the app?
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Including one C source file in another?
Is it OK (or even recommended/good practice) to #include a .c file in another .c file?
11 Answers
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How do I execute any command editing its file (argument) “in place” using bash?
I have a file temp.txt, that I want to sort with the sort command in bash.
14 Answers
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How to convert AAR to JAR
...
The AAR file consists of a JAR file and some resource files (it is basically a standard zip file with a custom file extension). Here are the steps to convert:
Extract the AAR file using standard zip extract (rename it to *.zip to m...
When to use EntityManager.find() vs EntityManager.getReference() with JPA
...ormal) where I use the EntityManager.getReference(LObj.getClass(), LObj.getId()) to get a database entity and then pass the returned object to be persisted in another table.
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Read and write a String from text file
I need to read and write data to/from a text file, but I haven't been able to figure out how.
21 Answers
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