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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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?
View 5 Replies View Relatedi'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
I would like to the get the last modification time for each Contact in android.provider.Contacts.People table. I have the following queries, a) Is there any column to notify that this contact record is updated. b) Is any column is available like last modification time or revision time to indicate the changes in each record(Each row in table).
View 4 Replies View RelatedI've a problem with a query in sqlite3.
The query is very simple:
SELECT MAX (INIT_DATE) INIT_DATE FROM TABLE;
When my application execute this query, and the table is empty, a record is returned. I can't understand why a record is being returned if the table is empty. It should return cero results.
I've tried to execute the query in two different ways:
cursor = db.query(true, "TABLE", new String[] {"MAX(INIT_DATE) AS INIT_DATE"}, null, null, null, null, null, null);
cursor = db.rawQuery("SELECT MAX(INIT_DATE) AS INIT_DATE FROM TABLE", null);
Before I create a table, how can I know whether the table already exist in database? How to query?
View 3 Replies View RelatedI'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.
View 9 Replies View Relatedhow to clear a table in android database.
View 3 Replies View RelatedI 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?
View 3 Replies View Relatedto 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..
View 3 Replies View RelatedI 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.
View 2 Replies View RelatedI am looking to the fastest and the correct way to check if a record exists in the database:
CODE:...................
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..
View 6 Replies View RelatedI 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)?
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?
I need to store data to use in my android program. Here are the details about the data: There will be one table. Each "row" of data will have a unique INT identifier. Other then that field, there will be four other INT fields and a text field. The string field will probably be a 2 or 3 sentences long. Each of the 4 INT fields will correspond to the ID of other rows.
View 2 Replies View RelatedI try to increase the value of an integer key in a row in my table. However, nothing really seems to happen.
db.rawQuery("UPDATE table SET key = key + 1 WHERE name=?", new String[] {name});
However, this code works fine (just sets the key to a hard-coded value):
ContentValues values = new ContentValues();
values.put("key", 2);
db.update("table", values, "name=?", new String[] {name});
Also tried '?' instead of just ?, but it resulted just in a run-time error.
I need to introduce a menu option on clicking which the whole SQLite database file stored at "data/data/com.company.packName/databases/" gets deleted. Using DROP TABLE command would only delete the table under a particular database.
How can i achieve this?
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;
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.?
View 2 Replies View RelatedIn 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.
View 1 Replies View RelatedI manually updated my Eris the other night and I must say I am happy with the update, it has really helped with my battery. What I have done is installed Battery Indicator by Darshan Computing. This puts a battery percentage indicator in the notifications area. I have set the built in timer for an hour and when it goes off I make a note of the battery in form of a percentage. Here is what I have so far.
Hour/Percentage of Battery Remaining
1/98
2/85
3/82
4/80
5/77
6-70
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...................
View 1 Replies View RelatedI try to record audio using android ndk. people say I can use "frameworks/base/media/libmedia/AudioRecord.cpp". but it is in kernel. how can I access and use it?
View 2 Replies View RelatedHTC's looks nice but is only so helpful. Is there a nice app or is it better just to bookmark weather.com or something?
View 12 Replies View RelatedI implemented sqlitedatabase using content provider in one application. And created some tables and some data in that. By using another application how to read those database. I am doing in second application as a sql query by using Content uri what i used in application one. But it is throwing exception that read permissin is required. How to give those permissions is it in application1 or 2.
View 21 Replies View RelatedI'm working on an Android app with a Java component and a C++ component via JNI. The C++ component is used on other platforms. It would make my life considerably easier if the C++ component could query the existing SQLite database (via the SQLite C API), without having to shell calls out to the Java side.
View 3 Replies View RelatedHow can i read dynamic database's title show in my Dialog now.
But the class is activity now and my other class for database is inherent from listactivity. furthermore, I already know the length of database title.
CODE:..........
Now create a simple cursor adapter and set it to display.
CODE:...............................
I was trying to read all Contacts field one by one and generated a v- card and store it into a database. When I have a huge number of contacts (say more than 150), while reading 155th contacts, I see my application is getting killed and cat log say it because of excessive JNI global refreences. Can anyone pls suggest what is causing the problem and how to solve it. Also, Im not seeing any errors if I have less than 150 contacts............
View 2 Replies View Relatedis it possible to extract (and read records) SQLite Database out of Android application/.apk file/...)? Because I have some important information in it, so I wanna be sure it's pretty secure (only application has access to it)?
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