Question

DECLARE @tableHTML  NVARCHAR(MAX) ;

SET @tableHTML =
    N'<H1>Report Heading</H1>' +
    N'<table border="1">' +
    N'<th>Check Number</th>' +
    N'<th>Last Operator Date</th>' +
    N'<th>Last Timestamp</th>' +
    N'<th>Run Date</th>' +
    N'<th>Issued Check Number</th>' +
    N'<th>Error Description</th>' +
    '<tr>' +
    CAST ( ( SELECT td = S.CHK_NUM,       '',
                    td = S.LAST_OPER_ID, '',
                    td = S.LAST_TIMESTMP, '',
                    td = S.RUN_DT, '',
                    td = ISNULL(S.RE_ISSUE_CHK_NUM,-1), '',
                    td = ISNULL(S.ERR_DESC,'<null>'), ''
              FROM STAGNG_CDDP_ERR_RCD S
              FOR XML PATH('tr'), TYPE 
    ) AS NVARCHAR(MAX) ) +
    N'</table>' ;

PRINT @tableHTML

If I attempt to substiture -1 with a varchar literal ‘(Null)’, I get the error

Msg 245, Level 16, State 1, Line 3
Conversion failed when converting the varchar value 'Null' to data type int.

I would prefer to display if the RE_ISSUE_CHK_NUM is null, but that field is an int and i believe the “TYPE” param is forcing teh returned value to match the original column’s type.

How do I modify the output so all of teh columns are text and hence formattable?

Edit

When I try this…

DECLARE @tableHTML  NVARCHAR(MAX) ;

SET @tableHTML =
    N'<H1>Report Heading</H1>' +
    N'<table border="1">' +
    N'<th>Check Number</th>' +
    N'<th>Last Operator Date</th>' +
    N'<th>Last Timestamp</th>' +
    N'<th>Run Date</th>' +
    N'<th>Issued Check Number</th>' +
    N'<th>Error Description</th>' +
    '<tr>' +
    CAST ( ( SELECT td = S.CHK_NUM,       '',
                    td = S.LAST_OPER_ID, '',
                    td = S.LAST_TIMESTMP, '',
                    td = S.RUN_DT, '',
                    --td = ISNULL(S.RE_ISSUE_CHK_NUM,-1), '',
                    td = CONVERT(NVARCHAR(16), ISNULL(S.RE_ISSUE_CHK_NUM,'(Null)')), '',
                    td = ISNULL(S.ERR_DESC,'<null>'), ''
              FROM STAGNG_CDDP_ERR_RCD S
              FOR XML PATH('tr'), TYPE 
    ) AS NVARCHAR(MAX) ) +
    N'</table>' ;

PRINT @tableHTML

I get this:

Msg 245, Level 16, State 1, Line 3
Conversion failed when converting the varchar value '(Null)' to data type int.

It’s tthe Check Number field that is Null that is numeric that i would like to display the string ‘Null’ in the HTML.

Is it the TYPE param that is the issue?

Answer 1

change this line

td = CONVERT(NVARCHAR(16), ISNULL(S.RE_ISSUE_CHK_NUM,'(Null)')), '',

to

td = CASE WHEN S.RE_ISSUE_CHK_NUM IS NULL THEN '<NULL>' ELSE  CONVERT(NVARCHAR(16), S.RE_ISSUE_CHK_NUM) END , '',