Question

如果我有一个列表和表格：

a:("12";"34";"56")

bb:([]c:("90";"12";"65"))

我这样做：

a except (select c from bb)

我收到以下错误：

length
[5]  (.q.except)

[4]  a except (select c from bb)

也许（从bb中选择c）仍然是表格？如何将列转换为列表，以便except语句起作用？

Answer 1

尝试使用“ exec”，它将返回该列作为列表。

if (followUpDataResponseList.get(fieldSize).getFieldType().equalsIgnoreCase("Textbox")) {
    View view = getLayoutInflater().inflate(R.layout.my_edittext, null);
    editCustom = view.findViewById(R.id.editCustom);
    editCustom.setHint(followUpDataResponseList.get(fieldSize).getValue());
    //Set Tag for EditText
    editCustom.setTag(fieldSize);

    textViewArrayList.add(editCustom);
    linearInterestData.addView(view);
} else if (followUpDataResponseList.get(fieldSize).getFieldType().equalsIgnoreCase("Dropdown")) {
    View view = getLayoutInflater().inflate(R.layout.my_spinner, null);
    spinner = view.findViewById(R.id.spinCustom);
    View spinnerView = view.findViewById(R.id.spinnerView);
    List < String > spinnerList = new ArrayList < > ();

}

String[] strArray = followUpDataResponseList.get(fieldSize).getPossibleValues().split(",");
List < String > list = Arrays.asList(strArray);
spinnerList.addAll(list);

ArrayAdapter < String > adapterSpinner = new ArrayAdapter < String > (mActivity, R.layout.spinner_text, spinnerList) {
    @Override
    public boolean isEnabled(int position) {
        return position != 0;
    }

    @Override
    public View getDropDownView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        View mView = super.getDropDownView(position, convertView, parent);
        TextView textView = (TextView) mView;
        if (position != 0) {
            textView.setTextColor(Color.BLACK);
        } else {
            textView.setTextColor(ContextCompat.getColor(getContext(), R.color.greyTextColor));
        }
        return mView;
    }
};

adapterSpinner.setDropDownViewResource(R.layout.simple_spinner_dropdown);
spinner.setAdapter(adapterSpinner);
//Set Tag for Spinner
spinner.setTag(fieldSize);
linearInterestData.addView(view);

或

a except exec c from bb

Answer 2

select确实确实输出了一个表。如果您希望输出为列表，请使用exec：

q)a except exec c from bb
"34"
"56"

Answer 3

两个答案都很好，但我个人更喜欢t [`col]

a:("12";"34";"56");
bb:([]c:("90";"12";"65"));
a except bb[`c]

如果动态调用，效果也会更好

Answer 4

一个选项：

WITH open AS 
(
SELECT COUNT(Work_Request_Code) AS OpenCount, Date_Requested AS Date
FROM Tickets_Open
WHERE Date_Requested >='2018-01-01 00:00:00'
GROUP BY(Date_Requested)
)
, close AS
(
SELECT COUNT(Ticket_Request_Code) AS ClosedCount, Date_Requested AS Date
FROM Tickets_Closed
WHERE Date_Requested >='2018-01-01 00:00:00'
GROUP BY(Date_Requested)
)
SELECT
COALESCE(c.Date, o.Date) AS Date
, IFNULL(o.OpenCount, 0) + IFNULL(c.ClosedCount, 0) AS TotalOpen
, IFNULL(c.CountClosed, 0) AS CountClosed
FROM open o
FULL OUTER JOIN closed c ON o.Date = c.Date

KDB：如何将表列转换为列表？

4 个答案: