Android :: Way To Retrieve A List Of All Tables In Database?
Nov 10, 2010
I have this database file under the usual databases folder and a bunch of tables inside it. Please note that I don't want to retrieve under the command line. I know I can use the ".tables" command. I want to retrieve a list of all tables in it, using code, so that I can execute some specific algorithms on each of them. Also, I didn't find any questions with this problem on Android, so please forgive me if there is any. I was wondering if there is any function I can use under Databases, but I didn't find any either.
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Apr 5, 2009
How to retrieve data from two tables via the ContentProvider way? I.E. the database of Calendar application, include many tables including Events and Deleted, and some others. I want to retrive records in Events table, whose _sync_id field is also in Deleted table. Usually, we write a SQL sentence like: select (all fields in Events) from Events as e, Deleted as d where e._sync_id = d._sync_id or select * rom Events as e where e._sync_id in select _sync_id from Deleted etc. But, how can I accomplish it in the ContentProvider way? I saw ContentProvider.query take a Uri as the first parameter, but pity that I don't know how to build one that could fulfill my purpose.
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Jul 30, 2009
I am trying to create a database with two tables. Employees and Computers. A spinner with employee names fill properly when I don't try create and do anything with the second table...
The code to create is:
CODE:.........................
Is there somehting I am doing wrong during the creating, as the rest of the code (to read data) is exactly the same...
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Oct 6, 2010
I created a data base named as example.db with some tables in SqlLite. It worked fine. It was also created in data/data/com.mypackage.myapp/databases/example.db. Now, I need to open that database and see the content in the database.
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Oct 16, 2010
Where do the tables created using SQlite database will be stored in Android? how to access them and see the data contained in them.
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Jan 27, 2010
I am new to Android and i would like to know if there's any tool to see databases (.db) tables and data into these tables.
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Feb 22, 2010
How to create two or more tables in one database in single class which extends sqliteopenhelper in one function oncreate.
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Mar 9, 2010
I am trying to throw 4 tables into a List<table> and then run a query on each through a loop... this isn't really working. ollowing code totally freehand as I had to undo the code I wrote because it wouldn't run :
//this first line is the one that I would imagine is the linchpin on getting this to work List<table> mTables = new List<table>(); mTable.add("character1") //add character 2 //add character 3 //add character 4 for (int i = 0; i < 4; i++) { mCursor = db.query(mTables.get(i), null null.......); mCursor.movetofirst;
//use ContentValue to update a few fields
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May 7, 2010
I'm writing an RSS reader for Android. I've faced a certain difficulty which the problem I can't resolve since databases aren't my expertise.. So i figured out maybe one of you could help me out! I currently have 3 tables (Categories, links and feeds). My goal is too link a feed to multiple categories. Therefor I'm using a Link table. My databases is an Android ContentProvider (sqlite) and looks like the following:
| Categories | | Links | | Feeds |
|------------| |---------| |-------|
| _ID | | Category| | _ID |
| Title | | Feed | | Title |
| URL |
I currently wrote the following code in my FeedListActivity to retrieve a list of links and their feeds.
CODE:.................
Now my question:
I was wondering how I could optimize this database layout, code or query so I would get my entries in a more efficient way. Because i believe this link table or the query to retrieve links isn't needed! Or am i doing this the correct way?
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Aug 7, 2010
I have implemented the search functionality using the android search dialog.to search multiple columns of a table using LIKE query.But search became slow as I have written a query in such a way that every time the text of each field(like the sample fields title,description category etc.) will be searched. title LIKE "---"OR description LIKE ''---"OR.....category LIKE "---"OR location LIKE"---"to. So is there any other way to speed up the functionality..
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Feb 10, 2010
I want manage our web application using an android application. we want to the database connection object. we are using mysql database. and i want to post the data to my server. so please help me for this solution.
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Jan 27, 2009
I'd like to use an existing sqlite3 database created outside of the phone, on a computer reachable by Wifi. I know how to download the file using Socket. The problem I see is that android.database.sqlite classes access databases only in /data/data/<package_name>/databases and it does not seem to be possible to write files directly in there. Is there a way to write a file in /data/data/<package_name>/ databases or ask the android.database.sqlite classes to read a database from another place?
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Sep 27, 2010
I create database using sqlite in command prompt. In my login screen user can enter loginid and password. then click the login button. while click the button I need to check that ..if login successful I need to retrieve other details from the same table . How can i achieve this. is there any sample code...
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Jul 29, 2010
While iterating through my contacts database, the first Name (GIVEN_NAME) always returns an integer while the last Name (FAMILY_NAME) always returns null. I am running on HTC Incredible. What am I doing wrong? Code...
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Nov 17, 2010
I want to store Location objects into my database, and then be able to load them. How can I build a Location object from its attributes? Should I create a blank Location and then set the attributes? (If yes, how?) Should I use my database as a Location Provider? (If yes, how?) Code...
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Aug 6, 2010
I'm using a SQLite database to store information on players and their teams using android. I've got it working so that all the players I've created will show up when ever I start my program, so the database is working. So far, so good. However, whenever I try to retrieve the rowId of a player from the database, it always gives me 0 back. This surprises me in itself, since I'd think I'd get an error if I wasn't accessing it from the cursor correctly, but instead it gives me 0. After debugging for a while, I realized that the Player object (not in database) also wasn't saving the id correctly, although it was finding a value for it. This was corrected when I set the id after creating the object, although it seems I would be able to set it in the creation statement itself. Curiouser and curiouser. Code...
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Sep 1, 2010
I need to store an retrieve a vector of an unknown number of objects in an android sqlite database. Essentially, the setup is this: I am developing a task management app, where the user can add as many notes as they like to their tasks. My current setup uses one database, with one row per task. This presents a problem when I need to associate multiple notes and their associated information with one task. I can see two approaches: try to store an array of notes or a vector or something as a BLOB in the task's row, or have another notes database in which each row contains a note and it's info, as well the id of the task which the note belongs to. This seems a little easier to implement, as all I would have to do to retrieve the data would be to get a cursor of all notes matching a particular id and then iterate through that to display them to the user. However, it seems a little inefficient to have a whole new database just for notes, and it makes syncing and deleting notes a little more difficult as well. What do you think? Is it worth it to have a separate notes database? Should I use a BLOB or go for the separate database? If a BLOB, are there any good tutorials out there for storing and retrieving objects as BLOBs?
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Dec 2, 2009
Am new to mobile development environment as well as android. I m trying to store data in the remote database and retrieve back.
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Aug 4, 2010
I need to store and retrieve data from database when the device is in offline.When i run my application when the device have internet it fetches data and shows it user,but i also need the same output when the device is in offline by saving previously obtained data in database,anyone help me to implement it in my application.
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Oct 6, 2010
I need to fill in edit boxes with first and last name.i want dabatabase which saves these once i fill the edit boxes and teh nxt tym i enter a single character it should retrieve that name.Plz provide code to me.
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Oct 27, 2010
I am new to android development.currently i am facing a problem while inserting/retrieving image to sqlite database using android Code...
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Feb 1, 2010
I am using ganymade eclipse 3.4 IDE and android sdk for development . I am trying to store static database file with some values on it in sqlite format. how can i add this file into the IDE and fetch the data from that file and store it . give me the guidance to do the development.
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Sep 17, 2011
how do i do it that for exmaple. we have a main.xml that have 1 text field for entering a name for example A and when we press a button lets say button 1. it will retreive A's data from database and display on main.xml's textview.
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Oct 2, 2012
I want to retrieve data from the existing sqllite and query it and show the values in listview. my sqllite db has four columns naming emp id, emp name, salary, designation. i want to show the list of employees in a listview and on list item click query from db and by sending that particular emp id and show the name, salary and designation in the textviews in another screen.
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Nov 16, 2010
How do I store and retrieve a byte array (image data) to and from a SQLite database in Android?
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Dec 16, 2009
I want to know how to store the images in SQLite database in android.and also how to retrieve it. anyone give the samplecode or any URL give me to develop my application.
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Jun 25, 2012
My GNex took a baseball to the screen; the screen is shattered and unresponsive, but the phone will power on and I can see the file structure if I connect via USB to my PC. I've retrieved all the files and photos that I want to save from the phone by copying to the PC, but not the text messages. I had a backup for the text messages, but it's gone (different story for another time). So I've been searching for a way to retrieve these text messages that can be executed entirely from the PC side, since I have no way of installing an app on the phone. I'd either like to be able to copy the SMS database to a new phone via PC, or dump it into some sort of manageable text format.
From the searches I've done, it seems like I might be able to do this using some sort of developer's code; (i.e., Install this program, plug in the phone, enter these lines of code, etc.)
The phone is stock (not rooted), and was just recently updated to ICS 4.0.4 (?)
Samsung says they can "fix" the phone for $160+, but that they won't be able to save any of the data since the phone isn't navigable (I assume they'll just send a replacement).
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Feb 12, 2009
In arrays.xml I have code...
From code I would like to get an Integer array.
I have tried int[] array = c.getResources().getIntArray(id);
but I am getting array with empty items instead of the ids of my drawables. Any pointers?
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Aug 20, 2010
In Java I would do something like:
CODE:.....
Is there an android equivalent?
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Apr 26, 2010
I am trying to retrieve a list of images and text from a web service. I have first coded to get the images to a list using Simple Adapter.
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