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About non-linkable queries

A non-linkable query is a detail query that contains column objects that prevent the query from being linked to with a column-to-column link (when you create a column-to-column link, Reports Builder adds a WHERE clause to your query). If you attempt to create such a link, a message dialog box displays, which prompts you to choose whether to create a group-to-group query (using the parent groups), or to cancel the operation. A non-linkable query displays the non-linkable query icon in its title bar.

Instead, you can create a group-to-group link (when you create a group-to-group link, Reports Builder does not add a WHERE clause to your query) between the two queries and add a WHERE clause to the child query’s SELECT statement, using a bind variable to reference the parent column.

For example, suppose you want to create a column-to-column link between the ADDRESS.STREET column in your child query and the LOC1 column in your parent query. You can create a group-to-group link, and then modify the child query SQL statement to say:

SELECT * FROM EMP E WHERE E.ADDRESS.STREET = :LOC1

See also

About data links

About bind references

About queries

Creating a query

Creating a data link