[erlang-questions] Issue in searching element in mnesia table

shiva gattushivakrishna@REDACTED
Fri Apr 6 14:47:08 CEST 2018


Hi all,

     I have requirement of storing list of tuple of elements in record 
fields of a table in mnesia.

This is the record defined for the table,

     record( test_info, { test_id:: integer(), username::atom(), 
test_details::list(), dut_card_details::list(), 
ats_card_details::list(), test_result::list()}).

example:

    This is the 'test_info' table with data,

     {test_info,3,kavi123,
            ["#102","09:45","11:55",pass],
            [ommp82_plus,12775,'1_4_3','0.1','0.0.1',123458889],
            [ats_card,12790,'1_7_5','1.1','0.1.1',123775777],
            
[{port1,{sfp,185,wqc,*wxt193*,1905,80,no,pass,pass,pass,pass,pass,
                         pass,pass,pass,pass}},
{port2,{sfp,174,was,zte142,1960,80,no,pass,pass,pass,pass,pass,
                         pass,pass,pass,pass}},
{port3,{sfp,189,wsc,svz77,2306,80,no,pass,pass,pass,pass,pass,
                         pass,pass,pass,pass}},
{port4,{xfp,134,was,xtg142,2560,80,no,fail,pass,pass,pass,fail,
                         pass,pass,pass,pass}}]}

i have an issue, how to search a record, which contains specific element 
from the list of tuple from mnesia table?

example:

     i need list of all the records containing 'wxt193' element in it.

Can you please suggest if any solution to resolve my issue,


Regards,

Gattu ShivaKrishna


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