oracle performance tuning
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-- out 5,6
t1.join_key = t2.join_key AND
(
( INSTR(t1.SERVICE_NUMBER, t2.SERVICE_DIGIT) > 0 AND INSTR(t1.SERVICE_PLATFORM, t2.SERVICE_PLATFORM) > 0)
-- ( t1.SERVICE_NUMBER like '%' || t2.SERVICE_DIGIT || '%' and t1.SERVICE_PLATFORM like '%' || t2.SERVICE_PLATFORM || '%')
OR
( t1.SERVICE_VARIANT_ID= TO_CHAR(t2.SERVICE_VARIANT_ID ) AND t1.SDPA_FLAG != 0 AND t1.ABONELIK_FLAG = 'N' )
) AND
T1.DCALL_DATE BETWEEN t2.START_DATE(+) AND t2.END_DATE(+) AND
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