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POAndroid SQLiteOpenHelper cannot open database file
 

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  1. POAndroid SQLiteOpenHelper cannot open database file
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    <p>I know that subject was disscussed before. But i cant find solution to my problem so im going to ask it one more time. I have problem creating database. Ive copied implementation of SQLiteOpenHelper:</p> <pre><code>public class DBCreator extends SQLiteOpenHelper { private static final String DATABASE_NAME = "servision.db"; private static final int DATABASE_VERSION = 1; private static final String INFO_TABLE ="create table INFO(key text,value text);"; public static final String GATEWAYS_TABLE = "GATEWAYS"; // Table name public static final String TABLE = "events"; // Columns public static final String TIME = "time"; public static final String TITLE = "title"; public DBCreator(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { try { String gatewaytablescript ="create table" +GATEWAYS_TABLE+"(" + "id int primary key, " + "host text not null," + "port int not null," + "username text," + "password text,"+ "useproxy int," + "proxyHost text," + "proxyPort port," + "desc text," + "secondaryip text," + "secondaryport int," + "timezone int," + "encryption int," + "customkey text" + ");"; Log.d("DBCreator", "Creating " + GATEWAYS_TABLE + "table"); db.execSQL(gatewaytablescript); String infotablescript ="create table " + INFO_TABLE + "(key text,value text);"; Log.d("DBCreator", "Creating " + INFO_TABLE + "table"); db.execSQL(infotablescript); } catch(SQLException ex) { Log.d("DBCreator", "onCreate exception " +ex.getMessage()); } } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { Log.d("EventsData", "onUpgrade"); if (oldVersion &gt;= newVersion) return; } } </code></pre> <p>and i create it from main activity onCreate method like this.</p> <pre><code>DBCreator db =new DBCreator(this); db.getReadableDatabase(); </code></pre> <p>in logcat i receive following info:</p> <pre><code>06-01 17:31:15.523: INFO/global(2470): Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required. 06-01 17:31:15.652: INFO/Database(4160): sqlite returned: error code = 14, msg = cannot open file at source line 25467 06-01 17:31:15.652: ERROR/Database(4160): sqlite3_open_v2("/data/data/com.servision.svclient/databases/servision.db", &amp;handle, 6, NULL) failed 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): Couldn't open servision.db for writing (will try read-only): 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): android.database.sqlite.SQLiteException: unable to open database file 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteDatabase.dbopen(Native Method) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteDatabase.&lt;init&gt;(SQLiteDatabase.java:1921) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:883) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:960) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:953) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.ContextImpl.openOrCreateDatabase(ContextImpl.java:602) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:203) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:98) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:158) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at com.servision.svclient.Main.onCreate(Main.java:52) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.os.Handler.dispatchMessage(Handler.java:99) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.os.Looper.loop(Looper.java:123) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at android.app.ActivityThread.main(ActivityThread.java:4627) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at java.lang.reflect.Method.invokeNative(Native Method) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at java.lang.reflect.Method.invoke(Method.java:521) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 06-01 17:31:15.722: ERROR/SQLiteOpenHelper(4160): at dalvik.system.NativeStart.main(Native Method) 06-01 17:31:15.738: INFO/Database(4160): sqlite returned: error code = 14, msg = cannot open file at source line 25467 06-01 17:31:15.738: ERROR/Database(4160): sqlite3_open_v2("/data/data/com.servision.svclient/databases/servision.db", &amp;handle, 1, NULL) failed </code></pre> <p>onCreate of DBCreator is never called. Im running program on Galaxy S in debug mode from Eclipse. Am I missing some permissions? May be context is not good or something?</p>
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    1. COCan you try to remove the *.db file extension from your database name (change DATABASE_NAME from servision.db to servision)?
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      1. USDaniel Novak
    2. COHi Daniel , thanks for quick answer.No changing the name does not help.
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    3. COHave you manually checked your permissions to read / write the database? I had some weird market crashes which reported me that in some rare cases my App could not open database for writing. I protected it to handle that special case, but I don't know of any workaround. If you don't have permissions to read/write the file, I don't think there's anything you can do
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