如何使用Cursor检索表的名称？

Question

我使用Cursor检索数据库中特定值的表名。问题是我不知道如何使用它。

通常，我会这样做：

Cursor c = myDbHelper.getSelectedData(value);
int id = c.getColumnIndex("ENGLISH_NAME");

但是，此代码会遍历列调用“ENGLISH_NAME”的记录

如何使用它来检索表的名称？

以下是Cursor

public Cursor selectTablesFromSearch(String value){

String selectQuery = " SELECT TableName" +
                         " ,       ENGLISH_NAME " +
                         " FROM    (" +
                         "         SELECT \'BABY_FOODS\' AS TableName" +
                                 " ,      ENGLISH_NAME " +
                                 " FROM BABY_FOODS " +
                                 " UNION ALL " +
                                 " SELECT \'BAKED_PRODUCTS_AND_CORN_TORTILLAS\'" +
                                 " ,      ENGLISH_NAME " +
                                 " FROM BAKED_PRODUCTS_AND_CORN_TORTILLAS" +
                                 " UNION ALL " +
                                 " SELECT \'BEEF_PRODUCTS\'" +
                                 " ,      ENGLISH_NAME " +
                                 " FROM BEEF_PRODUCTS" +
                                 " ) AS SubQueryAlias " +
                                 " WHERE ENGLISH_NAME IN (\'" + value + "\')";

return myDataBase.rawQuery(selectQuery, null);
}

Answer 1

试试这个

if (c.moveFirst()) {
    do {
        String value = c.getString(0);
    } while (c.moveNext());
}