Finding sequences and triggers associated with an Oracle table

Question

I have used this query to fetch the list of sequences belonging to an Oracle database user:

SELECT * FROM all_sequences x,all_tables B
WHERE x.sequence_owner         


        

Answer 1

i want the query which fetch list of table of my database user with the sequence and triggers used in the table

You can get the triggers associated with your tables from the user_triggers view. You can then look for any dependencies recorded for those triggers in user_dependencies, which may include objects other than sequences (packages etc.), so joining those dependencies to the user_sequences view will only show you the ones you are interested in.

Something like this, assuming you are looking at your own schema, and you're only interesting in triggers that references sequences (which aren't necessarily doing 'auto increment', but are likely to be):

select tabs.table_name,
  trigs.trigger_name,
  seqs.sequence_name
from user_tables tabs
join user_triggers trigs
  on trigs.table_name = tabs.table_name
join user_dependencies deps
  on deps.name = trigs.trigger_name
join user_sequences seqs
  on seqs.sequence_name = deps.referenced_name;

SQL Fiddle demo.

If you're actually looking at a different schema then you'll need to use all_tables etc. and filter and join on the owner column for the user you're looking for. And if you want to include tables which don't have triggers, or triggers which don't refer to sequences, you can use outer joins.

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Version looking for a different schema, though this assumes you have the privs necessary to access the data dictionary information - that the tables etc. are visible to you, which they may not be:

select tabs.table_name,
  trigs.trigger_name,
  seqs.sequence_name
from all_tables tabs
join all_triggers trigs
  on trigs.table_owner = tabs.owner
  and trigs.table_name = tabs.table_name
join all_dependencies deps
  on deps.owner = trigs.owner
  and deps.name = trigs.trigger_name
join all_sequences seqs
  on seqs.sequence_owner = deps.referenced_owner
  and seqs.sequence_name = deps.referenced_name
where tabs.owner = '';

If that can't see them then you might need to look at the DBA views, again if you have sufficient privs:

select tabs.table_name,
  trigs.trigger_name,
  seqs.sequence_name
from dba_tables tabs
join dba_triggers trigs
  on trigs.table_owner = tabs.owner
  and trigs.table_name = tabs.table_name
join dba_dependencies deps
  on deps.owner = trigs.owner
  and deps.name = trigs.trigger_name
join dba_sequences seqs
  on seqs.sequence_owner = deps.referenced_owner
  and seqs.sequence_name = deps.referenced_name
where tabs.owner = '';