[英]Failed to read row 0 , Column -1 From a cursor window in Sqlite database
Failed to read row 0 , Column -1 From a cursor window in Sqlite database 无法从Sqlite数据库中的光标窗口读取第0行,第1列
I used this code . 我用过这段代码。
public Misc fetchmiscdetails(Context aContext,
String acityName, String aLangName) {
Misc miscobj = null;
Cursor cursor = null;
String where;
try {
String sqlTables = "misc";
where ="Select * from misc ";
cursor = db.rawQuery(where, null);
// if (aLangName.equals("English"))
// where = "city_name = ?";
// else
// where = "city_name_ger = ?";
qb.setTables(sqlTables);
// cursor = qb.query(db, null, where, new String[] { acityName}, null, null, null);
if (cursor.getCount() > 0) {
cursor.moveToFirst();
do {
miscobj = new Misc(
cursor.getString(cursor.getColumnIndex("_id")),
cursor.getString(cursor.getColumnIndex("city_id")),
cursor.getString(cursor.getColumnIndex("countyr_id")),
cursor.getString(cursor.getColumnIndex("city_name")),
cursor.getString(cursor.getColumnIndex("city_name_ger")),
cursor.getString(cursor.getColumnIndex("city_lat")),
cursor.getString(cursor.getColumnIndex("city_long")),
cursor.getString(cursor.getColumnIndex("city_population")),
cursor.getString(cursor.getColumnIndex("city_timezone")),
cursor.getString(cursor.getColumnIndex("city_gmt")),
cursor.getString(cursor.getColumnIndex("city_dst")),
cursor.getString(cursor.getColumnIndex("city_lat_long")),
cursor.getString(cursor.getColumnIndex("city_category")),
cursor.getString(cursor.getColumnIndex("city_text")),
cursor.getString(cursor.getColumnIndex("city_rowoffset")),
cursor.getString(cursor.getColumnIndex("city_value"))
);
} while (cursor.moveToNext());
}
return miscobj;
} catch (Exception e) {
return miscobj;
} finally {
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
}
}
This happens when you try to get value from the Cursor
for a column which either does not exist or was not included in the Select
query. 当您尝试从
Cursor
获取不存在或未包含在Select
查询中的列时,会发生这种情况。
Since you are selecting all the columns it is most likely that you made a spelling mistake in one of the column names. 由于您选择了所有列,因此很可能您在其中一个列名中出现了拼写错误。
Most likely 最有可能的
cursor.getString(cursor.getColumnIndex("countyr_id"))
Compare all the column names in the method to the names that you use in your Create
statement for misc
table. 将方法中的所有列名称与您在
misc
表的Create
语句中使用的名称进行比较。
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