Question : Oracle query

I want to join these two tables and this should be inserted into the third table if the row is not present. Kind let me know if the query is correct.

select distinct b.C_CODE1,
a.CLM_COV_TYPE_CD,
a.LEG_CLM_COV_TYPE_CD
from
KGT_SDM_CLAIM_COV_NG a,
CODE_RELATIONS b
where a.CCN_NG_CLAIM_COV_CD = b.C_CODE2
and b.C_CATEGORY1 = 881
and b.C_CATEGORY2 = 20;

The third table is EWT_CLM_COV_TYPE_DIM.

Will this query work?

Insert into EWT_CLM_COV_TYPE_DIM as
select distinct b.C_CODE1,
a.CLM_COV_TYPE_CD,
a.LEG_CLM_COV_TYPE_CD
from
KGT_SDM_CLAIM_COV_NG a,
CODE_RELATIONS b,
EWT_CLM_COV_TYPE_DIM c
where a.CCN_NG_CLAIM_COV_CD = b.C_CODE2
and b.C_CATEGORY1 = 881
and b.C_CATEGORY2 = 20
and b.C_CODE1 <> c. C_CODE1
and a.CLM_COV_TYPE_CD <> c.CLM_COV_TYPE_CD
and a.LEG_CLM_COV_TYPE_CD <> c.LEG_CLM_COV_TYPE_CD

Kindly let me know

Answer : Oracle query

THe folowing will work as long as there are 3 columns in the target table with matching data types of the returned values.

1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14:

Insert into EWT_CLM_COV_TYPE_DIM select distinct b.C_CODE1, a.CLM_COV_TYPE_CD, a.LEG_CLM_COV_TYPE_CD from KGT_SDM_CLAIM_COV_NG a, CODE_RELATIONS b, EWT_CLM_COV_TYPE_DIM c where a.CCN_NG_CLAIM_COV_CD = b.C_CODE2 and b.C_CATEGORY1 = 881 and b.C_CATEGORY2 = 20 and b.C_CODE1 <> c. C_CODE1 and a.CLM_COV_TYPE_CD <> c.CLM_COV_TYPE_CD and a.LEG_CLM_COV_TYPE_CD <> c.LEG_CLM_COV_TYPE_CD

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