sql - How can I see where data in a column comes from? -

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i don't know if can me. in job, inherited undocumented database (oracle 11). far, i've managed map of tables , determine what's going on where. however, there few columns haven't been able decipher.

is there way of finding out how data in column built? not manual input. seems point data being result of entry in different column in different table.

it might impossible task, , suggestions more welcome.

thanks!

c

perhaps data being inserted in mystery columns via trigger? try looking in pl/sql source table in dictionary:

select owner, name, type, line   dba_source  upper(text) '%mystery_column_name%'    , type = 'trigger';  -- use or omit desired.

this pointed in possible places look.

good luck!


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