help with oracle sql case statement using count criteria -

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so far, query works using exists:

select case when exists                    ( select *                      test1                      timestamp = to_char(sysdate-1, 'yyyymmdd') || '0000'                    )             0             else 1        end flg dual

now, need add criteria. since data has these consistent count values of 100 example:

sql> select count(*), timestamp test1 group timestamp order 2 desc;    count(*)  timestamp ---------- ----------       100 2.0111e+11       100 2.0111e+11

i need alter query have count(*) of 100 , if set flag = 0 , if not set flag =1.

i'm not sure add count criteria value of 100. can still use case this?

you try looking having-statement:

select count(*), timestamp test1 group timestamp having count(*) = 100

basically it's same where, aggregates.


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