All Missing tables and procedures extensions are similar. They take as input SQL queries embedded in client code and generate as output Missing Schemas, Missing Tables, Missing Procedures or Missing SQL Tables, Missing SQL Procedures.
From a technical standpoint, SQL queries embedded in client code object types inherit from the metamodel category CAST_SQL_MetricableQuery, generally having icons that look like 
.
You can also retrieve the full list of SQL queries embedded in client code from the local KB with the following SQL statement :
select o.KeyNam QueryName, od.InfVal SQLQuery
from ObjDsc od join Keys o on od.IdObj = o.IdKey
join TypCat tc on tc.IdTyp = o.ObjTyp
where tc.IdCatParent = 139018 -- CAST_SQL_MetricableQuery
and od.InfTyp = 150 -- sqlQuery property InfTyp = 150, InfSubTyp = 15
and od.InfSubTyp = 15
