for some reason i would be executing a raw query or at least a query with group by clause and having clause to the table calls from database contacts.db.Adding the group by clause and the having clause to the where clause will result in exception.Open the database(/data/ data/ com.android.providers.contacts/databases/contacts.db) with SQLiteDatabase. open Database()also throws an exeception.
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I get records from the system by quering a ContentResolver. I maintain the order of the items in the database. So I want to display the items in the order taken from my database.
How do I merge these two informations?
I am looking after an alternative way now. As what I ideally want is:
Get order of contacts by a custom order held in my database (this involves joining CR with my DB cursor, and doing an order by, later seams it's not possible with CursorJoiner) but there is more, if the join is not unique I want to sort by contact's name as last measure
Which is impossible using Cursor and Joiners, because of the missing feature of order bys, also I need to return a Cursor, as I will be using the in an ExpandableList
Also this translated to TSQL it would look like
select * from contactsdata
left join category on contactsdata.catid=category.id
order by category.pos asc, contact.display_name asc
So I am looking now after an alternative. I have in mind to load in a temporary DB table all data from CR, then do the query on the temporary table where I can join tables and do order bys? How does this sound to you?
I want to be able to query a ContentProvider from a Service, so my understanding is I will need to use a ContentResolver. What I can't seem to find is how do I get a Context that I can use to create the ContentResolver with?
View 3 Replies View RelatedCODE:....
Why the contactsCursor is null? The number is in the contacts. Is there any mistakks in the query?
I'm trying this code and it's getting stopped in the getContentResolver statement....
CODE:.........
The goal: refresh database from XML data
The process:
Start transaction
Delete all existing rows from the tables
Per each main element of parsed XML insert row into main table and get PK
Per each child of the main element insert record into 2nd table providing FK from the previous step
Commit transaction
Pretty standard stuff as far as db operations. The problem is that CRUD operations are not done within ContentProvider but rather using ContentResolver so the insert for example looks like resolver.insert(CONTENT_URI, contentValues). The ContentResolver API doesn't seem to have anything pertained to transaction and I cannot use bulkInsert since I'm inserting in 2 tables intermittently (plus I want to have delete inside the transaction as well).
I was thinking of registering my customized ContentProvider as listener by using registerContentObserver but since ContentResolver#acquireProvider methods are hidden how do I obtain the right reference?
What would be a sensible way to add DISTINCT and/or GROUPBY to ContentResolver- based queries. Right now I have to create custom URI for each special case. Is there a better way?
(I still program for 1.5 as lowest common denominator)
I am wondering if Android's ContentResolver supports using SQL functions over the columns when you query a ContentProvider. Such as SQLite3 date functions, to get a specific date format, or datediff?
View 1 Replies View RelatedYou can delete with content resolver by URI or by passing some parameters to the where parameter.
How do you make the parameters to be SQL Injection Safe?
Is it possible to use Prepared Statements with ContentResolver?
act.getContentResolver().delete(myuriwithid,null,null);
act.getContentResolver().delete(mybaseuri," name = '"+this.name"'",null);
I know that after downloading an mp3 from your app you need to add it to the ContentResolver to see it on the music player. I am doing it with the following code...
My issue is that I am willing to avoid setting DISPLAY_NAME, ARTIST, ALBUM, TITLE by hand.
Is there a way to tell Android to do it from the file? I've already used just values.put(Media.DATA, pathToFile); but it's not adding it to the player.
Is there a way to force the thread that scans the sd for music?
When i access the phone book,i change the peoleo of the book,or delete the peoploe of the book, or update the people of the book, very qukliy ,the phone tell me GREF has increased to 201,and it increased when i next acess the phone book. i have use the ContentResolver,not the activity query.
View 2 Replies View RelatedHow to add contacts in Android 2.2. Please help as I am not able to make it. I am adding contacts but it is not visible.
View 2 Replies View Relatedive been looking for a week now i need some help connecting to a remote database...i want my app to get data out of the database and update the database.ive tried this http://www.helloandroid.com/tutorials/connecting-mysql-database but i dont understand it.
View 1 Replies View RelatedI'm trying to deploy an application with an existing SQLite database.I've been reading though the examples that are posted but they are always missing some part of the class. I feel like I'm trying to bake muffins but no one told me to use baking powder.Can someone post a full database helper class for depoying an SQLite database on Android? Edit : Delete old code because it doesn't work.
View 2 Replies View RelatedI'm currently developing a Field-Service application that stores data in the local sqlite database on an android device. At some point, usually after completing the data collection rounds, the local sqlite db is to be synchronized to a remote sybase db on the server.Any suggestions as to how this could be achieved or engineered as a solution? Or even better, are there alternatives to synchronizing data in such an application?
View 1 Replies View RelatedI want to build my own cloned databases of all or some of the Android native databases like Contacts, Calllogs, Mediastore, Settings, etc. I want to know wheher it is possible and How I can know the database schemas of these databases? Is there any documentation on this?
View 4 Replies View RelatedI am developing an App in which I need to authenticate password, store user personal information and setting details / preferences. All these are user-mobile specific or rather App specific and are unique for each user,the password and settings info should not be lost once phone is switched off or user exits the App, which data storage rocedure is recommended for such App?
View 3 Replies View RelatedI frequently encounter this message when I try to update a table (to enter a proxy) in the database using adb shell. $ adb shell #sqlite3 / data/ data/ com. android.providers. settings/databases/ settings.db sqlite> SELECT * FROM secure; SQL error: not an error sqlite>
View 3 Replies View RelatedSorry if this is the wrong forum (i'm sure the thread will be moved if it is!)I am seriously considering getting the htc hero (g2 touch), but everything hinges on the availability of a mobile database app, such as Visual CE (which I currently use on my WM phone) or Handbase. Basically a customisable form-based data collection app which can be sync'ed with a desktop database. Does anyone know of such an app?PS one of the shortfalls of Android from a marketing perspective is that there is no definitive way to view all available applications - Android Market is limited when accessed via the web.
View 26 Replies View RelatedI would like to ask you smart people if anyone has seen any documentation regarding web access to a database from within an Android application. I would like to create a (FREE) application where the users can share information (rants/complains) around the globe. Each user will be able to see a little globe in his phone with locations of other users and some specific information about them.
Architecturally, I am thinking "database in my GoDaddy host, exposing a web service", and the web service accessed from the Android application. But I see no documentation about accessing web services. I can also go XML, maybe, but I am not seeing what mechanisms exist in the Android for over-the-web XML access.
I have a feeling I am mis-understanding something big in the picture. Can someone point me to docs, or knows something about this topic? (the iPhone has a Lighter app where you can see people lighting around the globe. Mine is similar, but people would not be lighting, instead they will be "complaining/ranting").
I am working on a Android app and I have a dilemma. I have a list of Objects. I have to update each of these objects with a database. I have 2 methods:
Method 1:I can loop through the Objects. For each object I can connect to the server, update it, and then move on to the next Object, and so forth.
Method 2:I can store the Objects in a list, send the whole list to the server, update it on the server side, then return a list of updated objects.
My questions are:
Which method is faster?
Which method is easier on the phone's battery?
I understand that to access a SQL database from Android I need to create a web service that will run on the SQL server and will process requests from the Android application, what I need to know is how to create this web service and how to access it from Android.
View 1 Replies View RelatedI'm using an sqlite database in my app.
I have this dbhelper class in a services class like so.
CODE:............
In my activity classes I access and keep this application as a local variable like so:
CODE:..............
And my service call looks like this:
CODE:.............
I've added these overrides in to try to get rid of my memory leaks.
CODE:.............
But I can't get my memory leaks to stop.
How to rid myself of these memory leaks? These leaks are of the type:
CODE:..................
What does database setPageSize method do?Will it improve sql insertion time?
View 2 Replies View RelatedI'm new to Android, I just finished the Notepad Tutorials, where we can create SQLite Databases to save notes. So I wanted to know if it was possible to "import" my own SQLite database (not created with my App but with a 3rd-party software) to my project, and if the answer is yes, where should I save my SQLite databse and how can I have access to it.
View 9 Replies View Relatedi hook up my G1 to my laptop and open a 'adb shell'. But as I execute the command 'cd /data/data', I get an error 'opendir failed, Permission denied' adb devices List of devices attached HT853GZ21556 device .I tried to cd the the right directory and then do 'sqlite3 <mydatabase>.db'.How can i dump the content of the database on a real device?
View 2 Replies View RelatedI am new to android platform. I am testing one android phone application. I want to see the database entries for that.
View 2 Replies View RelatedI created an application which stores values into the database and retrieves the stored data. While running an application in run mode everything seems to work fine (the values are stored and retrieved successfully) but when I run in the debug mode the process throws IllegalStateException and so far haven't found a cause. Code...
View 1 Replies View RelatedI'm doing a application that will use a database with serialized object. The objects will be already serialized and the user will just display things. On a PC I would just make an XML but with android I'm not sure. Can I make an XML and "unpack" it when the user launch the application for the first time or should I do something else?
View 3 Replies View RelatedI put my database field in "assets" folder. And use the code from this blog to copy the database to "/data/data/my_packname/databases/", (This copy code i run it in the onCreate() method when i run this app) then use select * from ... to get data. But it gives me the exception: no such table. Someone told me that if i am attempting to copy the file in SQLiteOpenHelper's onCreate(), it's too late. So the copy file code can not copy the complete file. So i need to use adb or ddms to pull the database first? So, Anyone can teach me how to use my own databse?
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