Android :: Backup Table To Local Database File?
Oct 20, 2009
I am working on a project for a belgium Tv Guide. Now I download a database (.db) file from a server to the sdcard to work with. In this database are 2 tabels, tvchannels and tvprograms. Now I can do several updates to the tvchannels table and i want to make a backup of this table to a lokal database file. How can i do that? I want to do this because I have to download a new database file every daye from the server and the channels that are choses are saved in the tvchannels database. I want to backup this database table and when the new database file (tvgids.db) is downloaded I want to replace the tvchannels database (from downloaded database file) with the backup from tvchannels..
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May 30, 2012
Using Local XML file as a database for a android app?
I am trying to build a app with flash using a xml file as database, to read the xml from a external file from the local directory isn't a problem, the problem is how to write data from flash to the xml file.
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Aug 11, 2010
How can I copy my data from xyz.xml in my assets dir to my sqllite db during development in android platform
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Sep 6, 2009
I need to somehow backup my applitcations database to a file so that it can later be retored using that file. The only way I would do it would be by reading every table to an xml ffile but it seems soo ineficient. The data does not have to be humand readable.
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Jan 3, 2010
I'd like to add a feature to my android app that automatically backs up the sqlite database to the sd card.
What's the best way to go about this? Any examples/tutorials available?
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Nov 11, 2010
I published an application that stores data in a local database.
Now I have to publish an update to this application to fix some little bugs, but I am afraid that downloading and installing the update will delate the local database associated with the previous version.
I would like to know how the update system works. Will installing an update completely delete all the apk, files, databases associeted with the previous version?
If so, how can I avoid this in my code?
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May 31, 2009
Before I create a table, how can I know whether the table already exist in database? How to query?
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Jul 28, 2009
I'm working at an application about SQLite database. I have inserted some table in an database file. But I don't know how to get all the tables' name using code. For example, I defined a database object SQLiteDatabase dataBase = SQLiteDatabase.openOrCreateDatabase(getDatabasePath("Mydatabase"), null); and how can I get all the table names stored in the database file "Mydatabase". Counld anyone give me some code.
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Apr 20, 2010
how to clear a table in android database.
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May 13, 2010
I have already having 2 tables in a database now i want to create a new table in that database it self how can i create?
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Jan 22, 2009
to dear all Android developers, I need to know the UTC bias of my phone to correct the UTC time information I got from a site. I have read earlier posts and already found the solution to get TimeZone information from the "System.currentTimeMillis();" method. However, I need to translate the TimeZone (as like, "Asia/Taipei") to the UTC bias that it has to be (as like, "UTC+8" or other formats). Does anyone know the actual API solution? I have surveyed android.util.TimeUtils and found nothing to do this. The worst solution may I have is to build a "TimeZone/UTC" database table to translate this..
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Oct 11, 2010
I am new to andriod.I am creating a table and inserting the values into table by using sql lite.Now i need to change vales based on the id.how can i done this pls post some code.
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Jul 22, 2010
I have a table with column headings: | _id (long) | Name (String) | x (integer) | y (integer) |
I want to delete the row in the table that has Name myName.
// In onCreate
dbHelper = new DBAdapter(this);
dbHelper.open()
// Function in DBAdapter class
public boolean deleteTitleGivenName(String myName)
{return dbHelper.delete(DATABASE_TABLE_2, KEY_NAME + "=" + myName, null) > 0;}
// Function call in java code
dbHelper.deleteTitleGivenName(myName); // this is where my code fails
dbHelper.close();
Just as a note: myName is for sure in the database. Also, I can not use the ROWID since I am getting myName from a ListView.
I just started programming with Android and I have tried for days to solve this problem.
Is my WHERE clause correct (KEY_NAME + "=" + myName)?
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Sep 12, 2010
I want my app to access database every hour and read next record from the table then update desctop widget and send notification. I know that there is AlarmManager which I can use to register my Intents but they are deleted when the phone is turned off or rebooted. Is there any other android class/service that I would update my application continuously even when I reboot my phone?
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Jan 21, 2010
In Android when you upgrade a database all data is lost. I'm going through a phase of development right now that is forcing many database upgrades. I don't want to lose all my data (and have to manually re-enter it) each time I upgrade my database. I would like to store my data in flat files and load those flat files into their respective tables each time a database upgrade occurs.
My questions is: What is the best way to go about this on the Android platform? Where should I store the data files (res/raw???) What sql should I execute to load these files?
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Nov 3, 2010
I want to read data from database and displayed it in table layout form. table will contain n rows and 2 columns. But row size is not fixed then how to show them in table layout format?
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Apr 23, 2010
I have a database where I store two different kinds of data. One table is for favorite routes, the other stores the retrieved routes from a server.
I can retrieve the routes etc just fine. But after retrieving the first Route, pressing back or HOME, and then retrieving another route, the routes table is filled with all the old routes plus the new ones.
So my question: how do I delete ONLY the routes table and not the whole database because I don't want to delete the added favorites?
I found the following function in the android docs:
public int delete (String table, String whereClause, String[] whereArgs) and I tried to implement it, but I must pass a SQLiteDataBase as an argument. But how?
I implemented: public void deleteTableRoutes(SQLiteDataBase db){ db.delete("routes", null, null);}
But I want to call this function from a different class where I have no reference to the database.. so what do I have to pass as an argument? Or how do I get a reference to my database?
I build my database upon the code example of the NotePadExample from the dev docs.How to solve this problem?
This is an extract of my class from where I want to call deleteTableRoutes(...)
private String start_from;
private String destination;
private int hour;
private int min;
private int day;
private int month;
private Source source;
private List<Element> tempList;
private List<Element> routes;
private String startT = "";
private String arrivalT = "";
private String duration = "";
private String line = "";
private boolean first=true;
private List<ResultElement> finalResult;
private List<Element> results;
private DbAdapter mDbHelper;
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Sep 6, 2010
How to play video present in local file system (ex:in res/a.3gp) using VideoView .I am getting error as Video cant be played.Can any one help me in sorting out this issue?
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Nov 14, 2011
i'm trying to access (read & write) from non-default (example 2nd table) table of a sqlite database which i created using sqlite database browser. but somehow, i cant seems to find the way to access it.
Code:
public class DatabaseHelper extends SQLiteOpenHelper {
private static String DB_PATH = "/data/data/com.sg/databases/";
private static String DB_NAME = "TestDatabase";
private SQLiteDatabase myDatabase;
[code]...
select data method works, but i can only select from table 1 and not table 2
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Nov 24, 2010
I have created a table named train_table in SQLite database with 3 columns. they are train_id, train_no and train_name. Now, i wrote a class in which i displayed the train_name in a list view. how do i get the related train_no in the next page? can anyone help me in sorting this problem.?
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May 22, 2010
In my project, I would like to create a database with single table. I would also like to insert data on this table from word or excel document. is it possible? if so please how can I do it? some code snippets would be of great help. I have four different activities which I would like them to interact with this single table. the first is the main activity and its purpose is just to launch the other three activities according to user choice. so it has no interaction with the DB. but the other three activities will read from the table whenever called. Can you please tell me how to call the dbhelper on these activities? I am unable to do this and I am currently creating one db per each activity which is not the optimal way.
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Jun 30, 2010
I am new to android application development.I have create registration form with user name,password, email. this values should be stored in sqlite database table. retrieve the data from the table. in login.java i have create the table and insert the values of registration form data in to the table dynamically. In databsehelper.java extends the databaseopenHelper class overwrite the oncreate and upgrade methods.this class i used this class in login.java. In display.java i am going to display the data in on success register details. there are no errors but it gives the error on the emulator unexpectedly stoped...................
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Jul 1, 2009
I'm trying to read some local files, and ive been reading a lot of stuff about it, but i still don't know where to store the files on my phone and how to get the right path. Some say, it should be stored on /data/data/your.package.here/files but where is that, i mean i can get there when using the emulator but i have no clue how to put files in this on a real device.
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Jul 26, 2010
All of the android examples for XmlPullParser pull from a local resource file, and all of the SAX examples pull the XML from a URL. I've been told SAX is faster, so I'm trying to use that to pull data from a local resource file (res/xml/thefile.xml)
The example code I'm working off of is here. So in that example, the code I want to change is:
URL url = new URL("http://example.com/example.xml");
...
xr.parse(new InputSource(url.openStream()));
Instead of using URL, I want to use getXml(R.xml.thefile)
Is that possible, or does SAX need to get data from a URL?
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Nov 27, 2009
I'm trying to get a byte array of an image saved locally on the phone. I'm using the code...
How can I get the Bytes?
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Apr 21, 2014
If auto backup is enabled in Photos, any images I download are also backed up. This happens regardless of whether 'back up local folders' is on or off, and even if I've explicitly disabled uploads for the Downloads folder!
I only want to backup photos I take, not all the junk I download. It's clearly broken.
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Nov 8, 2010
I don't want to store said file on the sdcard in this case. The file also cannot be storage directly in the apps local files directory. It needs to be in a subdirectory, so it cannot write the file using openFileOutput() and MODE_WORLD_READABLE.
The app may download files small files like pdfs and store them locally in a subdirectory. I would like to be able to have the user open these files if they have an app that can open them.
For example here is an intent for sending a pdf:
CODE:..............
path being something like: /data/data/packagename/files/subdir/example.pdf
That intent will open a pdf viewer, but the viewer is unable to open the file. I assume this is a permissions issue. I tried Mark Murphy's suggestion here: http://groups.google.com/group/android-developers/browse_thread/thread/4e55d869213483a9/b7270078ac1a2744?lnk=raot of using Runtime.getRuntime().exec("chmod 755 " + fileName); but it didn't make any difference. He also suggested a Content Provider but I would like to avoid it if I can because it seems like a lot just to get this file over to another app.
If the content provider is the only option, do I have to save the file to the content provider or can I just use the content provider as a pass through to get it to the other app when I need to?
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Feb 28, 2009
I thought it might be interesting to some developers. Here's a complete working example of ContentProvider for this purpose: http://blog.tourizo.com/2009/02/how-to-display-local-file-in-android. I also found a topic here: http://groups.google.com/group/android-developers/browse_thread/threa. Looks like the topic was closed and I couldn't reply there, so I created new one.
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Jan 13, 2010
How can i load a local (on my HD) KML or KMZ file to the android application? I know that these lines do the work:
Intent mapIntent = new Intent(Intent.ACTION_VIEW); Uri uri1 = Uri.parse("geo:0,0?q=http://code.google.com/apis/kml/ documentation/KML_Samples.kml"); mapIntent.setData(uri1); startActivity(Intent.createChooser(mapIntent, "Sample"));
BUT, if I download the KML_Samples.kml and put it on my local apache server, it doesn't work. Another thing, can I load a kmz file to my application?
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Apr 28, 2010
Can anyone tell me how to parse a local xml file stored in the system using SAX ,with an example code.please also tell me where can i find information on that
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