show the outcome code in the Table Name: Project Outcomes
select distinct outcome_code from project_outcomes
Show the outcome description of the Table Name: Research Outcomes
select outcome_description from research_outcomes
Show the project details of the Table Name: Projects
select project_details from projects
Show the	outcome details of the Table Name: Project Outcomes
select outcome_details from project_outcomes
List the project details of the projects with the research outcome described with substring 'published'.
select t1.project_details from projects as t1 join project_outcomes as t2 on t1.project_id = t2.project_id join research_outcomes as t3 on t2.outcome_code = t3.outcome_code where t3.outcome_description like '%published%'