Question

我收到此错误

android.database.sqlite.SQLiteException: near "SELECT": syntax error: , while compiling: SELECT _id, c_type, s_name, s_numb, user_name, password FROM accounts WHERE SELECT * FROM TableName LIMIT 1 OFFSET 1

以下是创建问题的代码。我的目的是从表中获取ith记录的ROWID，然后使用该ROWID从表中删除一个条目。

public void deleteEntry(long i) {
    String[] columns = new String[]{KEY_ROWID, KEY_CTYPE, KEY_SNAME, KEY_SNUMB, KEY_USRN, KEY_PASS};
    Cursor cursor = ourDatabase.query(DATABASE_TABLE,columns,"SELECT * FROM " +DATABASE_TABLE+" LIMIT 1 OFFSET "+i, null, null, null, null, null);
    if (cursor != null && cursor.moveToFirst())
    {
        cursor.moveToFirst();
        long rowIds = cursor.getLong(0);
        ourDatabase.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowIds, null);
    }
  //  ourDatabase.delete(DATABASE_TABLE, KEY_SNUMB + "=" + siteNum, null);
    //return ourDatabase.insert(DATABASE_TABLE,null,cv);
}

Answer 1

我通过改变方法实现了结果，但是当我学习android并且是初学者时，我想知道如何修复我在问题中提到的代码

String[] columns = new String[]{KEY_ROWID, KEY_CTYPE, KEY_SNAME, KEY_SNUMB, KEY_USRN, KEY_PASS};
    Cursor cursor = ourDatabase.query(DATABASE_TABLE, null, null, null, null, null, null);
    if (cursor != null && cursor.moveToFirst()) {
        cursor.moveToFirst();
        for(int x=0;x<i;x++)
        {
            cursor.moveToNext();
        }
        long rowIds = cursor.getLong(0);
        ourDatabase.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowIds, null);
    }

SQLiteException：接近“SELECT”：语法错误：

1 个答案: