如何在BI Publisher中从一个数据集中的选择中设置值作为另一数据集中的参数

Question

So I have dataset1 that has something like SELECT userID from table1 where ... from DataBase1

And I have dataset2 that has some complicated SQL on DataBase2 that must have parameter ... where userID = :userID...

So how can I pass that userID that I get in SQL from DB1 to SQL that I'm running in DB2?

Answer 1

Here is a simple example. Two queries like you mentioned. I have an incoming parameter to select a set from the first table (parent records). And then I pass the userID to the second query (child records). I show how that works in the data structure too, how each parent record can have child records.

<?xml version="1.0" ?>
<dataTemplate name="DATA_DEFINITION_NAME" version="1.0" defaultPackage="DATA_DEFINITION_CODE">
<properties>
<property name="ENCODING" value="windows-1252"/>
<property name="debug_mode"    value="on" /> 
<property name="scalable_mode" value="on" />
</properties>
<parameters>
<parameter name="i_parameter"   dataType="NUMBER"   />
</parameters>
<dataQuery>
<sqlStatement name="Q_TABLE_1"><![CDATA[select userid, username from table1 where column1 = :i_parameter ]]></sqlStatement>
<sqlStatement name="Q_TABLE_2"><![CDATA[select ValueColumn from table2 where userid = :userid ]]></sqlStatement>
</dataQuery>
<dataStructure>
<group name="users" source="Q_TABLE_1">
<element name="username"          value="username"         /> 
<group name="userdata" source="Q_TABLE_2">
<element name="ValueColumn"                     value="ValueColumn"                />
</group> 
</group>
</dataStructure>
</dataTemplate>