Slow running Query.
- From: "Kumar, Dharminder" <Dharminder.Kumar@xxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 21 Jun 2004 17:06:04 -0400
> Hi all,
> I have the following query which is running very slow as it takes few min=
utes to complete.
>=20
> SELECT sum(nvl(as_ofcsh,0)),sum(nvl(as_offxd,0)),
> sum(nvl(as_ofeqty,0)),sum(nvl(as_ofai,0))
> FROM perfclient, assets_view, client
> WHERE cl_decmkr=3D'64501013'
> AND cl_clcode=3Das_clcode
> AND as_date=3D '200312'
> AND cl_clcode=3Dpc_clcode
> AND pc_prfcomb in ('B', 'Y')
> AND pc_grpdte !=3D '0000-00-00'
> AND substr(pc_grpdte,1,4)||substr(pc_grpdte,6,2) <=3D '200312'
>=20
> But if I run the following queries the response time is less than a seco=
nd.
>=20
> SELECT sum(nvl(as_ofcsh,0)),sum(nvl(as_offxd,0)),
> sum(nvl(as_ofeqty,0)),sum(nvl(as_ofai,0))
> FROM assets_view
> WHERE as_clcode in '64501013'=20
> and as_date=3D'200312'
>=20
> select cl_clcode from=20
> perfclient,client
> WHERE cl_decmkr=3D'64501013'
> AND cl_clcode=3Dpc_clcode
> AND pc_prfcomb in ('B', 'Y')
> AND pc_grpdte !=3D '0000-00-00'
> AND substr(pc_grpdte,1,4)||substr(pc_grpdte,6,2) <=3D '200312'
>=20
> Following is the definiton of VIEW assets_view
>=20
> CREATE OR REPLACE VIEW retail.assets_view
> ( as_clcode
> , as_date
> , as_ofcsh
> , as_offxd
> , as_ofeqty
> , as_delcsh
> , as_delfxd
> , as_deleqty
> , as_uncsh
> , as_unfxd
> , as_uneqty
> , as_ofai
> , as_delai
> , as_unai
> )
> AS
> select ca_clcode as_clcode,
> substr(ca_date,1,4)||substr(ca_date,6,2) as_date,
> sum(decode(ca_status, 'O', decode(ca_class, 'C', nvl(ca_mktval, 0), 0), 0=
)) as_ofcsh,
> sum(decode(ca_status, 'O', decode(ca_class, 'F', nvl(ca_mktval, 0), 0), 0=
)) as_offxd,
> sum(decode(ca_status, 'O', decode(ca_class, 'E', nvl(ca_mktval, 0), 0), 0=
)) as_ofeqty,
> sum(decode(ca_status, 'D', decode(ca_class, 'C', nvl(ca_mktval, 0), 0), 0=
)) as_delcsh,
> sum(decode(ca_status, 'D', decode(ca_class, 'F', nvl(ca_mktval, 0), 0), 0=
)) as_delfxd,
> sum(decode(ca_status, 'D', decode(ca_class, 'E', nvl(ca_mktval, 0), 0), 0=
)) as_deleqty,
> sum(decode(ca_status, 'U', decode(ca_class, 'C', nvl(ca_mktval, 0), 0), 0=
)) as_uncsh,
> sum(decode(ca_status, 'U', decode(ca_class, 'F', nvl(ca_mktval, 0), 0), 0=
)) as_unfxd,
> sum(decode(ca_status, 'U', decode(ca_class, 'E', nvl(ca_mktval, 0), 0), 0=
)) as_uneqty,
> sum(decode(ca_status, 'O', nvl(ca_mktval_ai,0),0)) as_ofai,
> sum(decode(ca_status, 'D', nvl(ca_mktval_ai,0),0)) as_delai,
> sum(decode(ca_status, 'U', nvl(ca_mktval_ai,0),0)) as_unai
> from me_client_assets
> group by ca_clcode, ca_date
>=20
> (ME_CLIENT_ASSETS table has UNIQUE INDEX pk_me_client_assets
> ON me_client_assets
> ( ca_clcode,
> ca_date,
> ca_status,
> ca_class,
> ca_risk,
> ca_rspelig,
> ca_short,
> ca_foreign )
> CLIENT table has index on column "cl_clcode" and another index on "cl_dec=
mkr".
> PERFCLIENT table has index on column "pc_clcode"
>=20
> So can you suggest some ways to improve this query.
> Thanks in advance.=20
>=20
>=20
>=20
>=20
> Dharminder Kumar
>=20
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