Stuck in 'Invalid column index' error - sql

Question

I use ibatis. And below is my query.
<select id="mnote" parameterClass="Map" resultMap="ContentStatismnote">
SELECT
NVL(DAY, 'TOTAL') DAY
, SUM(A), SUM(B), SUM(C)
FROM
(
SELECT Z.*
FROM TABLE Z
where b.day between to_char(to_date('#startDt#'), 'yyyy.mm.dd') and to_char(to_date('#endDt#'), 'yyyy.mm.dd')
)
GROUP BY ROLLUP(DAY);
And JSP page is this:
<colgroup>
<col style="width:25%;"/>
<col style="width:25%;"/>
<col style="width:25%;"/>
<col style="width:25%;"/>
</colgroup>
<thead>
<tr>
<th>DAY</th>
<th>A</th>
<th>B</th>
<th>C </th>
</tr>
</thead>
<tbody>
<br><c:forEach var="contentStatis" items="${resultCount}" >
<tr>
<td align="center"><c:out value="${contentStatis.day}" /></td>
<td align="center"><c:out value="${contentStatis.studentPkg}" /></td>
<td align="center"><c:out value="${contentStatis.shared}" /></td>
<td align="center"><c:out value="${contentStatis.nonShared}" /></td>
<tr>
</c:forEach>
</tbody>
When I run the query alone in TOAD, it runs fine and display data.
But when I want to show the data in JSP, it shows me
--- Check the parameter mapping for the 'startDt' property.
--- Cause: java.sql.SQLException: 'Invalid column index
Can anyone help me?

Answer 1

Try to alias fields and tables:
SELECT
NVL(DAY, 'TOTAL') DAY
, SUM(A) SUMA, SUM(B) SUMB, SUM(C) SUMC --fields
FROM
(
) T --table