[android help] SQLite excpetion unable to convert BLOB to string

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In my android project I fetch one problem during retrieving data from data base. In this I try to get String value from DB like URL but when this code execute then I get this error android.database.sqlite.SQLiteException: unknown error: Unable to convert BLOB to string And only URL colomn give me this error not any other string colomn. I didn't get where I am wrong. So friend please give me suggestion how I can resolve this problem. Here I also print my LogCat. Thank You. 08-22 20:08:12.290: WARN/System.err(10844): android.database.sqlite.SQLiteException: unknown error: Unable to convert BLOB to string 08-22 20:08:12.300: WARN/System.err(10844): at android.database.CursorWindow.getString_native(Native Method) 08-22 20:08:12.300: WARN/System.err(10844): at android.database.CursorWindow.getString(CursorWindow.java:329) 08-22 20:08:12.300: WARN/System.err(10844): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:49) 08-22 20:08:12.300: WARN/System.err(10844): at com.catLog.ProductsDetailsHomeTab.getProductDeatilsFromDB(ProductsDetailsHomeTab.java:337) 08-22 20:08:12.300: WARN/System.err(10844): at com.catLog.ProductsDetailsHomeTab.setFlipperChild1(ProductsDetailsHomeTab.java:201) 08-22 20:08:12.300: WARN/System.err(10844): at com.catLog.Widget.ViewFlipper_ProductDetails.onRightToLeftSwipe(ViewFlipper_ProductDetails.java:68) 08-22 20:08:12.300: WARN/System.err(10844): at com.catLog.Widget.ViewFlipper_ProductDetails.onTouchEvent(ViewFlipper_ProductDetails.java:131) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.View.dispatchTouchEvent(View.java:3766) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:897) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1676) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1112) 08-22 20:08:12.300: WARN/System.err(10844): at android.app.Activity.dispatchTouchEvent(Activity.java:2086) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1660) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1676) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1112) 08-22 20:08:12.300: WARN/System.err(10844): at android.app.Activity.dispatchTouchEvent(Activity.java:2086) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1660) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1676) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1112) 08-22 20:08:12.300: WARN/System.err(10844): at android.app.Activity.dispatchTouchEvent(Activity.java:2086) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1660) 08-22 20:08:12.300: WARN/System.err(10844): at android.view.ViewRoot.handleMessage(ViewRoot.java:1785) 08-22 20:08:12.300: WARN/System.err(10844): at android.os.Handler.dispatchMessage(Handler.java:99) 08-22 20:08:12.300: WARN/System.err(10844): at android.os.Looper.loop(Looper.java:123) 08-22 20:08:12.300: WARN/System.err(10844): at android.app.ActivityThread.main(ActivityThread.java:4627) 08-22 20:08:12.300: WARN/System.err(10844): at java.lang.reflect.Method.invokeNative(Native Method) 08-22 20:08:12.300: WARN/System.err(10844): at java.lang.reflect.Method.invoke(Method.java:521) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 08-22 20:08:12.300: WARN/System.err(10844): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 08-22 20:08:12.300: WARN/System.err(10844): at dalvik.system.NativeStart.main(Native Method) edited Aug 22 '11 at 15:33 Quintin Robinson 33.3k75883 asked Aug 22 '11 at 14:39

	How to convert BLOB to string? Direct conversion is not possible without using some UDF, but you can extract text using SUBSTRING function: What is the datatype of the column you are getting the error on (from what you say I think this is the URL column)? Sounds like it is of type BLOB which is a representation of an image but not a string answered Aug 22 '11 at 15:52

	answered 4 mins ago

lang-sql

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