如何在 $X{IN} 表达式中使用 sql 子字符串函数？

Question

我在报告中有一个查询，在 $X{} 表达式中添加 substring 后无法正常工作。

SELECT t1.grn
FROM qc_master t1
WHERE $X{IN, t1.i_rep_no.substring(0,1), type}

我在 iReport/JSS 预览期间收到错误 Parameter 1 does not exist。如何解决这个问题？

Answer 1

复制Jaspersoft Community的答案：

You cannot use an SQL function inside a JasperReports $X clause function as per: http://jasperreports.sourceforge.net/sample.reference/query/index.html#clause_functions

Instead, you could have something like this in your SQL:

and substr(t1.i_rep_no,1,1) IN ($P!{type})

with parameter type as a java.lang.String with comma separated values, or as anything that resolves to that.

如何在 $X{IN} 表达式中使用 sql 子字符串函数？

How to use sql substring function in a $X{IN} expression?

sql

jasper-reports