dbid or dbname
syntax: dbcc usedextents(dbid | dbname, type. displayopt [, fragment, prt] )
type: 0=entire db, 1=log devices only
displayopt: 0=display extent details or 1=display count
fragment: 1=display per device fragment, 0=not
prt: 1=display extent details on 1 line
fragment / prt are optional. I use: usedextents( dbname, 1, 1)