sqlite db update

Question

Is there an easy way to update a table in sqlite in android? (like a single line in built method) ? I have a table with few columns and primary is one column. I want to sear

Answer 1

To use with predefined update method from android, use it as below:

ContentValues args = new ContentValues();
args.put("col_name", "new value");

db.update("table_name", args, String.format("%s = ?", "primary_column"),
           new String[]{"primary_id"});

Or to run as a single line, go with this (not recommended):

db.execSQL("UPDATE table_name SET col_name='new_value' WHERE
           primary_column='primary_id'");

Answer 2

Then you should already know what's your primary key.

dbHelper.getWritableDatabase();
ContentValues values = createContentValues(profileVo);
db.update(ProfileVO.TABLE_NAME, values, ProfileVO.COLUMN_ID + "=" + profile.getId(), null)

Here's a good tutorial for you http://www.vogella.com/articles/AndroidSQLite/article.html

Answer 3

Try this:

public void updateFunction(int id) {
            String updateStmnt  = "UPDATE  YOUR_TABLE SET YOUR_COLUMN = "
                    + id;
            database.execSQL(updateStmnt);
        }

Hope it will help.

Answer 4

I know this a bit old, but in case anyone needed another way:

public boolean updateNote(Note note) {
    SQLiteDatabase db = notesDbHelper.getWritableDatabase();

    ContentValues contentValues = new ContentValues();
    contentValues.put(NotesDbContract.NoteEntry._ID, note.getId());
    contentValues.put(NotesDbContract.NoteEntry.COLUMN_NAME_TITLE, note.getTitle());
    contentValues.put(NotesDbContract.NoteEntry.COLUMN_NAME_DSECRIPTION, note.getDescription());

    int result = db.update(NotesDbContract.NoteEntry.TABLE_NAME,
            contentValues,
            NotesDbContract.NoteEntry._ID + "=?", new String[]{String.valueOf(note.getId())}
    );
    db.close();

    return result > 0;
}

Answer 5

You can use rawQuery like this:

cur = mDb.rawQuery("update " + TABLE_NAME
+ " set column1=mango where id='" + _id + "'",null);

---

where

• cur is Cursor object
• TABLE_NAME is NAME OF THE TABLE
• _id is name of the column (only example)

Answer 6

Read the documentation for SQLiteDatabase.update

You should end up with something like this:

affected = db.update(TABLE_NAME, values, where, whereArgs);

UDPATE

Avoid raw queries using error-prone syntax at all costs. I see a lot of answers here that use a lot of '"' + SOMETHING + "'" ... this is extremely bad practice and you will spend all your time looking for errors on places that are hard to find or simply a complete waste of time.

If you must use raw queries, try forming them with String.format to avoid perilous debug sessions and migraines.