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找出哪些table没有primary key


  可以依照SCHEMA展出没有设PK的TABLE
  
  def schema_name = &&owner_name
  
  col sname format a30 heading 'Schema'
  col tname format a30 heading 'Table Name'
  
  select
  dt.owner sname,
  dt.table_name tname
  from
  sys.dba_tables dt
  where
  dt.owner like upper('&schema_name') escape '\'
  and
  not exists
  (select 'x' from sys.dba_constraints dc
  where dc.owner = dt.owner
  and dc.table_name = dt.table_name
  and dc.constraint_type = 'P')
  order by 1,2
  /
  
  执行结果
  
  Schema Table Name
  ------------------------------ ------------------------------
  APPLE TEST_TB
  APPLE KKK
  APPLE P1
  APPLE PLAN_TABLE
  APPLE QQ
  APPLE T1
  APPLE T2
  APPLE T3
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