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Android Android Data Persistence CRUD Operations with SQLite Updating Existing Data

Posted by Dalton Coble
Dalton Coble
6,489 Points

I don't see the error of the code | updating existing data task 2

Once again, assume you have a variable named 'database'. Update the database using the 'values' and 'clause' variables and "PETS_TABLE" as the table name. Use the documentation for help on how to call the appropriate method to update this data.

I am not sure what is wrong.

CodeChallenge.java 
ContentValues values = new ContentValues();
values.put("name", "Rover");
values.put("type", "cat");
values.put("breed", "grumpy");

String clause = String.format("%s=%s", "name", "Rover");

public void update(String table,
                   ContentValues values,
                   String whereClause,
                   String[] whereArgs) { database.update(SQLiteHelper.PETS_TABLE, updateAnnotations, 
                                                         String.format("%s=%d", BaseColumns._ID, annotation.getId()), null); }

1 Answer

adamabdulghani
adamabdulghani
7,864 Points

Hi Jody,

First thing you don't need to put the logic inside a method. Secondly, the table name is "PETS_TABLE" and they did not state that SQLiteHelper.PETS_TABLE = "PETS_TABLE".

http://developer.android.com/reference/android/database/sqlite/SQLiteDatabase.html#update(java.lang.String, android.content.ContentValues, java.lang.String, java.lang.String[])

ContentValues values = new ContentValues();
values.put("name", "Rover");
values.put("type", "cat");
values.put("breed", "grumpy");

String clause = String.format("%s=%s", "name", "Rover");

/* Add your code here! 
 * Assume you already have a variable named 'database'.
 */

database.update("PETS_TABLE",values,clause,null);

if you don't feel confident about what you learned in the videos, I urge you to watch them again or read and understand the code.

Best of luck and happy coding ! :-) Adam