I'm trying to insert values on Android SQLite Database. The question is, Iḿ trying to insert a word, the table has 3 columns, ID, WORD, COUNT. When I insert a word in the database, some method will verify if this word exists on the database. If yes, it will increment the value of COUNT for this word.
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I have array list of geopoints
List<GeoPoint> geoPointsArray = new ArrayList<GeoPoint>();
I want to put geoPointsArray array in to SQLite database and then fetch the data back as an array.
Now I use ContentValues for insert into array as:
ContentValues initialValues = new ContentValues();
initialValues.put(KEY_TIME, time);
db.insert(tableName, null, initialValues);
I have a table called "images":
CODE:.........
On inserting a row, I'd like the URL column to be unique. At the same time, I'd like to find out the id of the row with that URL.
INSERT OR IGNORE images (url, caption) VALUES ("http://stackoverflow.com", "A logo"); SELECT last_insert_rowid(); -- returns the id iff there was an insert.
Of course, I'd like to do it as quickly as possible, though my first thought was along the the lines of the following pseudo code:
CODE:...........
But this seems hopelessly inefficient.
What is the most performant way of getting the Auto incremented row id from an INSERT OR IGNORE statement.
I'm trying to insert text into my SQLite database, but for some reason it doesn't work. It never executes..
Code below (this is my function that I'm calling):
public void setInfo(final String tableName, final int id, final String title, final String time, final String content) code...
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.
View 1 Replies View RelatedHow can I quickly access the screen resolution (width, height) as integer values? I've tried this one, but it always shows zero on my emulator:
DisplayMetrics dm = new DisplayMetrics();
int width = dm.widthPixels / 2;
In my case I want to dynamically create a table with tableRows, each containing two cols. This cols all shall fill half of the screen in width.
Say, we have a table created as:
create table notes (_id integer primary key autoincrement, created_date date)
To insert a record, I'd use
ContentValues initialValues = new ContentValues();
initialValues.put("date_created", "");
long rowId = mDb.insert(DATABASE_TABLE, null, initialValues);
But how to set the date_created column to "now"? To make it clear, the
initialValues.put("date_created", "datetime('now')");
Is not the right solution. It just sets the column to "datetime('now')" text.
How do i do an edit form functionality in android. I am a new bee to android. How do i pass on database values to XML and then submit it back..
View 1 Replies View RelatedI want to insert a String value call temp but I don't seems to get it working for the INSERT INTO statement. Anything wrong with the code? This is the initialization to create table and insert some default values into the table if the database doesn't exist. Code...
View 4 Replies View RelatedI have a database (stored on a Class 6 SD card) with a single empty table (5 columns). There is an index on each column. Performing a single INSERT statement (whether using an SQLiteStatement or calling SQLiteDatabase.insert()) takes about 800ms on my N1 (2.2.1). The INSERT statement does NOT do anything fancy (like subselects). Is there any way to speed this up?
View 4 Replies View RelatedI need to insert 1000 rows into SQLite DB. Each row has 12 columns, text and numbers, none is big. It takes literraly minutes to insert all 1000 items. I use SQLiteDatabase.insert to insert each row.
What can I do to improve this performance?
So far we have developed apps in android that create database on runtime. We like to know how can we access a pre-built or existing database/sqlite file in our android app?
View 1 Replies View RelatedIn Android is it possible to insert a sqlite timestamp into a database using ContentValues?
When I try to add it using something like
ContentValues args = new ContentValues();
args.put(MY_DATE,my_date);
I get an error telling me that my_date needs to be a string
I 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 am trying to populate a ListView in a separate class with data taken from a SQLite database held in another class. What would be the easiest way to do so?
View 1 Replies View RelatedI have a xml file with info inside. I want to convert the xml file to sqlite database without using a SD card in android platform(Java Language). Does anyone have any idea how to do it?
View 1 Replies View RelatedI wanna set a textview as the values from SQLite when I click the ListView Here is my way...
View 1 Replies View RelatedI want to know when a close method of a sqlite database should be called in a life cycle, since the NotePad sample in the sdk (http://developer.android.com/resources/tutorials/notepad/index.html) doesn't call NotesDbAdapter.close(), it implements that method though.
My application accesses the db not so frequently, but some, it depends on user requests. I think I should open the db at the onCreate, and close it at the onDestroy. Is that a good practice?
How can I obtain the value of a boolean field in a sqlite database in android?
I usually use getString() getInt() etc to get the values of my fields, but there does not seem to be a getBoolean() method. Any takers?
How large can be the database of my Android app? Is there a limit?
For performance reasons, I don't want to store the database on the SD card.
We have an android app that currently sends data to a php script which writes to a mysql DB on the same server. We are thinking of using a scalable remote DB e.g. amazon RDS.The question is how does our android app write to these remote DBs? Do they have some kind of rest API, or do we have to send the data to the same php script on our server but use that to post to the remote mysql DB?
View 2 Replies View RelatedI currently facing problem where user have the choice to enter several working experience, where every working experience include several details (company name, duration, roles etc) I don't know how should I store it since users have the freedom to add as many working experience as they have.I have a table as below
private static final String DATABASE_CREATE_WORKEXP =
"create table workexp (work_id integer primary key, _id integer not null," +
"workcompany text, workduration text, workrole text, workskills text" +
"workproject text, worksalary integer, workreason text," +
"foreign key(_id) references user(_id));";
I have a problem while trying to insert / update and delete entries as company name can be duplicated. Any advice or suggestion? I'm glad to provide more info for you to help me.
I have parsed xml data but I don't know how to insert it into a SQL Lite database and I don't know where I have to place the xml database file in Eclipse IDE folders.
View 1 Replies View RelatedI am trying to find the path for the android database files on Ubuntu 10.4, because I want to access with SQLite Browser. Someone can tell?
View 2 Replies View RelatedI 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.
View 3 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 RelatedOne of the Preferences in my PreferenceActivity needs to get its values from a database. How do I add these values?
View 1 Replies View Relatedi have to develop the app is insert the database from spinner in mysql database via soap webserices in android application...
i have use below webservice code:
Code:
package com.xcart;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
[Code]...
this is my android source code for spinner:
Code:
public class InsertionExample extends Activity{
private final String NAMESPACE = "[URL]...";
private final String URL =
[Code]....
my logcat window says following error:
Quote:
08-23 02:48:40.030: D/AndroidRuntime(4055): Shutting down VM
08-23 02:48:40.030: W/dalvikvm(4055): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
08-23 02:48:40.060: E/AndroidRuntime(4055): FATAL EXCEPTION: main
[Code]...
what error is occurred here.give me solution...
i have a problem with double values i need to store in an android homed sqlite database. since these double values represent gps values (lat & lng), i really NEED an absolute precision down to the 9th number after the comma.when reading lng from this table into some (java) double variable, i get a value like "0.999956837" - this renders the values pretty useless to me.is there a way to enforce the precision i need other than storing the values as "text" fields (what would make expensive casts neccessary) or storing them as integers (meaning i need to multiply/divide at each write/read-op)?
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