sql - Select query taking much time to execute - query optimisation -
i have table called cps_case_history
1 column named 'notes'
of data type varchar2 (1800 char)
i need fetch 10 15 records cps_case_history
table notes 'account tfr ufss'
.
i have used below 2 queries it's taking time execute, can 1 suggest way optimise below query can fetch 10 or 15 records quickly
first query :
select * cps_case_history (dbms_lob.instr(notes, 'account tfr ufss') > 1)
second query:
select * cps_case_history notes '%account tfr ufss%'
thanks in advance.
as name suggest history table cps_case_history. may case table contain huge amount of data. getting query result fast table should have partitioning or index .
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