2018-12-18 23:13:54.487 12540-12540/me.mhmdbhsk.sekolahku E/SQLiteLog: (1) near "null": syntax error
2018-12-18 23:13:54.489 12540-12540/me.mhmdbhsk.sekolahku D/AndroidRuntime: Shutting down VM
2018-12-18 23:13:54.492 12540-12540/me.mhmdbhsk.sekolahku E/AndroidRuntime: FATAL EXCEPTION: main
    Process: me.mhmdbhsk.sekolahku, PID: 12540
    java.lang.RuntimeException: Unable to start activity ComponentInfo{me.mhmdbhsk.sekolahku/me.mhmdbhsk.sekolahku.LihatDataActivity}: android.database.sqlite.SQLiteException: near "null": syntax error (code 1 SQLITE_ERROR): , while compiling: create table biodata(no integer primary key, null, nama text null, tgl text null, jk text null, alamat text null);
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2914)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3049)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1809)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6680)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:495)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
     Caused by: android.database.sqlite.SQLiteException: near "null": syntax error (code 1 SQLITE_ERROR): , while compiling: create table biodata(no integer primary key, null, nama text null, tgl text null, jk text null, alamat text null);
        at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
        at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:903)
        at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:514)
        at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
        at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
        at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
        at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1770)
        at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1698)
        at me.mhmdbhsk.sekolahku.DataHelper.onCreate(DataHelper.java:21)
        at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:393)
        at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:322)
        at me.mhmdbhsk.sekolahku.LihatDataActivity.RefreshList(LihatDataActivity.java:49)
        at me.mhmdbhsk.sekolahku.LihatDataActivity.onCreate(LihatDataActivity.java:45)
        at android.app.Activity.performCreate(Activity.java:7144)
        at android.app.Activity.performCreate(Activity.java:7135)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2894)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3049)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1809)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6680)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:495)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
2018-12-18 23:13:54.497 1494-2176/? W/ActivityManager:   Force finishing activity me.mhmdbhsk.sekolahku/.LihatDataActivity
2018-12-18 23:13:54.500 1494-2176/? W/ActivityManager:   Force finishing activity me.mhmdbhsk.sekolahku/.MainActivity