Get Field Slot From Row 0 Col 0 Failed

  1. Get Field Slot From Row 0 Col 1 Failed
  2. Get Field Slot From Row 0 Col 2 Failed
Get field slot from row 0 col 2 failed

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用游标迭代数据时，出现此异常： java.lang.IllegalStateException: get field slot from row 0 col -1 failed 原因有可能如下： 1，检查查询的字段名是否写错 2, 检查游标是否查询出你所需要的字段 3.cursor的使用 public Cursor getChildCursor(int groupId). Sqlsrvgetfield.; 2 minutes to read; In this article. Download PHP Driver. Retrieves data from the specified field of the current row. Field data must be accessed in order. For example, data from the first field cannot be accessed after data from the second field has been accessed. Oct 15, 2019  The Worksheet, a fantasy football overview by Rich Hribar, breaking down everything you need to know for the Week 7 Jacksonville Jaguars vs Cincinnati Bengals Sunday afternoon game on October 20, 2019 at 1 pm ET.

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Get Field Slot From Row 0 Col 1 Failed

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Comments

commented Jul 10, 2017

你好 不知道怎么就出现这个错误
情况出现很奇怪
DataSupport.where('uid=?', uid + ').find(TB_UserInfo.class);
只有uid为条件才出现 一直报错 换个字段就好了 以前没出现 突然出现的 已经整懵了

commented Jul 10, 2017

Couldn't read row 0, col 0 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it.

抓的异常

Get Field Slot From Row 0 Col 2 Failed

commented Jul 11, 2017

我也并没有遇到过这个问题，不过我在stackoverflow上找到了一个和你一样的问题，看看对你有没有帮助吧 https://stackoverflow.com/questions/26755590/failed-to-read-row-0-column-0-from-a-cursorwindow-which-has-0-rows-64-columns

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closed this Jul 14, 2017
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  1. 'Couldn't read row 0, col 0 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it.' (id=830026207728)
  2. class DatabaseHandler extends SQLiteOpenHelper {
  3. // All Static variables
  4. private static final int DATABASE_VERSION = 2;
  5. // Contacts Table Columns names
  6. private static final String KEY_VAL = 'value';
  7. public DatabaseHandler(Context context) {
  8. super(context, Defines.DATA_PREFIX, null, DATABASE_VERSION);
  9. return 'storage';
  10. @Override
  11. String q = 'CREATE TABLE ' + this.getTableName() + '(' + KEY_KEY + ' TEXT PRIMARY KEY,' + KEY_VAL + ' BLOB' + ')';
  12. }
  13. // Upgrading database
  14. public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
  15. db.execSQL('DROP TABLE IF EXISTS ' + this.getTableName());
  16. // Create tables again
  17. }
  18. boolean add(String key, String value) {
  19. values.put(KEY_KEY, key); // Contact Name
  20. long res = db.insertOrThrow(this.getTableName(), null, values);
  21. return res >= 0;
  22. SQLiteDatabase db = this.getReadableDatabase();
  23. Cursor cursor = db.query(this.getTableName(), new String[] { KEY_VAL }, KEY_KEY + '=?', new String[] { key }, null, null, null, null);
  24. cursor.moveToFirst();
  25. if(cursor null)
  26. try {
  27. } catch(CursorIndexOutOfBoundsException e) {
  28. } catch(IllegalStateException e) {
  29. }
  30. return ret;
  31. String countQuery = 'SELECT * FROM ' + this.getTableName()+' WHERE '+KEY_KEY+' = ?';
  32. Cursor cursor = db.rawQuery(countQuery, new String[] { key });
  33. cursor.close();
  34. // return count
  35. }
  36. void delete(String key) {
  37. db.delete(this.getTableName(), KEY_KEY + ' = ?', new String[] { key });
  38. }
  39. int update(String key, String value)
  40. SQLiteDatabase db = this.getWritableDatabase();
  41. ContentValues values = new ContentValues();
  42. values.put(KEY_VAL, value);
  43. // updating row
  44. return db.update(this.getTableName(), values, KEY_KEY + ' = ?', new String[] { key });
  45. }