I have a problem programming with android SDK 1.6. I'm doing the same things of the "notepad exaple" but the programm crash when i try some query. If i try to do a query directly in to the DatabaseHelper create() metod it goes, but out of this function it doesn't.
This is the source:
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I want to run this query in Android Application :
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My DB schema
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Here is the function -
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The app crash if enable text.
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I create a table like that
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I update it this way
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I do see the change in eclipse with DDMS questoid
But when i try to retrieve the value I get nothing ....
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I've tried some variant like
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With no success
Is this problem come from the type (integer) of my column ?
I use this query in my android database, but It return no data. Am I missing something?
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I successfully created the Database and inserted a row however I cannot Query it for some reason. My Droid crashes everytime.
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I get this exception
No such column: value: , while compiling: SELECT DISTINCT value FROM mainTable
I have a query that pulls everything from a database into a list view.
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I want only the records where the field KEY_HOMEID matches a variable called journalId which should be a numeric string.
I would also like to know how to bring the variable into my DatabaseAdapter... would ((resource)this.getApplication()).getjournalId()) work? resource is a class that extends application.
I am trying to write a select query from one single table in SQLite DB in my app where data exists.
This is the SQL.table has these columns - id(INTEGER), start_time(INTEGER), category(TEXT)
select category from tuuserid_pref where id = (select max(id) from tuuserid_pref
where start_time < '1242'); by the way I want to bind the value shown in 1242 which I have in an Integer variable.
I have written selects and inserts and updates without binding parameters and they work using db.execSQL and db.rawQuery functions but just cannot figure the binding parameters out.
I have a query that selects rows in a ListView without having a limit. But now that i have implemented a SharedPreferences that the user can select how much rows will be displayed in the ListView, my SQLite query doesnt work. Im passing the argument this way:
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I'm using the SQLite3 database system in the Android library. I need to execute a query during a transaction to see if there is a similar entry already there. If there is, I have to perform some other logic and adjustments before I add a new row. Can I execute a query within a transaction and get the result back immediately?
View 1 Replies View RelatedIs there any way out to achieve "SELECT * FROM tblname WHERE name LIKE '%[0-9]%' ". i know we can't do this with sqlite~ but how to deal with such query task with sqlite? i tried to use REGEXP ~but unluckily it is not pre-defined~ so i tried to define it by myself...but even i couldn't find a way in android to create a UserDefinedFunction...
View 2 Replies View RelatedIm trying to get an object form my SQLite database in my Android application. I know that the contact is in the database because when I add it and try finding by ID, it returns the object. When I try finding by first and last name, though, it throws an exception and Im left with a null reference.
Here is the query:
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Ive also tried to find just by first name and just by last name. Same result as above.
The exception is an SQLite exception
no such column: aurelius: , while compiling: SELECT _id, last_name, first_name,
email_address, organization_name, label, label_position FROM contacts WHERE
first_name=marcus AND last_name=aurelius
And also happens when trying to select just first or last name
no such column: marcus: , while compiling: SELECT _id, last_name, first_name,
email_address, organization_name, label, label_position FROM contacts WHERE
first_name=marcus
I know db.query was written like below in Android sample. I want to use other field instead of rowId witch is KEY_DATE, but it's not worked as well.
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Have been using a SQLite database, Theres a situation where i have a list which displays all the "name" field data of a table "table1". Now i have a button to insert data in "table1". The list is populated using a simple cursor adapter which is passed a cursor "cursor1" populated with the data. "cursor1" is prepared using the SQLite query - "SELECT * FROM table1". Now the moment i insert data, i need to update the list too.
My question is- will the Adapter sense the database change automatically (i guess not)?
using cursor1.requery() is correct or should i use cursor1 = db.query("table1", null, null, null, null, null, null);
I have this query which does work fine in MySQL
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Distance is in Kilometers, the input is lat=12.345 and lon=67.89
The SQLite is 3, and I can't run custom functions with it as it's on Android. I also don't have acos() etc... as that is not part of the standard SQLite.
How would be the above query in SQLite?
Am I going wrong anywhere here ? because this is giving runtime error. application stopped unexpectedly.
I may b wrong in syntax.
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i want to run a delete query with limitation . I've tried to many queries but they didn't work . For know , I just want to remove all the rows and I write this code "
DELETE FROM tbl1 where _id IN(select _id from tbl1 WHERE cat=21)
The emulator runs perfectly without any error . right now , I have 32 rows with cat = 21 . solve this problem ?
How to programmatically stop a long-running query?
The long-running step is, for example, the first call to Cursor.moveToFirst(). This can sometimes take up to 30 seconds so I would like the user to be able to cancel.
However, how should this be done? I've tried closing the Cursor (in another thread) but all that happens is that the close() call takes as long as moveToFirst() and then terminates with the exception:
java.lang.IllegalStateException: attempt to acquire a reference on a close SQLiteClosable
I've got a query, (I'm using rawQuery())
SELECT * FROM <table>
I'm then storing what it returns using a cursor. From their what I want to do is, start at the first row so.. cursor.moveToFirst() then take each column , column by column and store its particular value in a variable. I then want to move onto the next row and do the same. So I guess my question is How would I get cursor to deal with multiple columns?
In my Android application user can fill database with imported data, then perform predefined, complex SQL query. With some data pattern, query will take very long (minutes and more on HTC Hero), while common usage will not exceed 10-15 seconds.
Is there any way to cancel pending SQLite query on Android? Timeout would be as good as well, partial results are not required. I'm performing query within AsyncTask.doInBackground()
I know best way is optimize query or change app logic, but in this case results depends on user knowledge anyway, so I'd like to help those who enter troublesome pattern.
I have made a program that reads in a txt file of the users choice from the sd-card into and edittext window. I am reading in the file using a strings and a vector. This seems to work fine on most phones except on moto droid and g1.
View 2 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);
can we use truncate query in android database? otherwise can we performing truncate operation using our java code?
View 1 Replies View RelatedI have an Android SQLite/ContentProvider problem that I have been beating my head against the wall for over the past 3 hours.
View 1 Replies View RelatedI'm writing a small program, it can show and manager all files and folder in the android mobile. Now I get a problem need to help, when I click to a file icon, example a audio, i want the audio player can run and play it.
View 2 Replies View RelatedIn my app I need to query both the SMS and the MMS log to get the history of all incoming and outgoing messages.
This code has worked wonderfully for SMS:
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But when I try the following I get completely different results:
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The SMS query returns data that includes the message address (phone number), contact name, message subject, message body, etc... The same query for MMS returns a bunch of nulls or numeric value fields that I can't make any sense of. I really need a list of all MMS messages currently on the phone with the phone number or contact ID associated with it, and if the message was an incoming or outgoing message. In the SMS query results I can get the phone number from the address field, and the incoming/outgoing type from the type field but neither of these exist when I query for MMS.
Is there a different content Uri that I need to query for this sort of MMS data?
Is there a way to access and query the android SMS/MMS log? To clarify, the SMS/MMS Log is all the SMS/MMS messages sent by the host phone. It can be aquired by reading a cursor to the message inbox.
View 2 Replies View RelatedIs it possible to query a website's api from an android app? If so, how to do you handle the return if it's in xml?
View 1 Replies View RelatedI am seeing the exception in 'adb logcat'.But I don't know if it is caused by my application or android platform.Can you please give me any idea how to troubleshoot this exception?
View 3 Replies View RelatedI have a sql query like this
String loadFav = "SELECT _id, title, name, favorite FROM table1 where favorite= 1 "
+ "UNION ALL"
+ "SELECT _id, title, name, favorite FROM table2 where favorite= 1"
Cursor mCursor = mSQLiteDatabase.rawQuery(loadFav, null);
I got an error when run this query. Is it right structure?