我在查询时遇到问题。执行需要10个小时。
WITH CONSUM AS (
SELECT C.ID_MEASURER,C.ID_MEASURING_POINT,C.CONSUM_TYPE
FROM GCGT_RE_CONSUM_H_E C
WHERE C.DAY BETWEEN 20130201 AND 20130228 AND ACTIVE = 1
),
CORE AS (SELECT
SS.NISS,
CO.ID_CONTRACT,
CO.FROM_DATE AS FECHA_INI_CONTRATO,
SS.ID_DISTRIBUTER,
SS.ID_SECTOR_SUPPLY,
MP.CUPS,
M.ID_COMBINATION_USAGE_TYPE,
MP.MP_FUNCTION,
NVL (MP.FLAG_TELEMETRY, 0) AS TELEMEDIDO,
NVL (CTYP.RELEVANCE, 0) AS RELEVANT_CONSUM_TYPE,
MP.ID_MEASURER,
CTYP.COD_USAGE_TYPE AS CONSUM_TYPE,
0 AS VALUE_1,
0 AS VALUE_2,
0 AS VALUE_3,
0 AS VALUE_4,
0 AS VALUE_5,
0 AS VALUE_6,
0 AS VALUE_7,
0 AS VALUE_8,
0 AS VALUE_9,
0 AS VALUE_10,
0 AS VALUE_11,
0 AS VALUE_12,
0 AS VALUE_13,
0 AS VALUE_14,
0 AS VALUE_15,
0 AS VALUE_16,
0 AS VALUE_17,
0 AS VALUE_18,
0 AS VALUE_19,
0 AS VALUE_20,
0 AS VALUE_21,
0 AS VALUE_22,
0 AS VALUE_23,
0 AS VALUE_24,
0 AS VALUE_25,
'' AS SOURCE_1,
'' AS SOURCE_2,
'' AS SOURCE_3,
'' AS SOURCE_4,
'' AS SOURCE_5,
'' AS SOURCE_6,
'' AS SOURCE_7,
'' AS SOURCE_8,
'' AS SOURCE_9,
'' AS SOURCE_10,
'' AS SOURCE_11,
'' AS SOURCE_12,
'' AS SOURCE_13,
'' AS SOURCE_14,
'' AS SOURCE_15,
'' AS SOURCE_16,
'' AS SOURCE_17,
'' AS SOURCE_18,
'' AS SOURCE_19,
'' AS SOURCE_20,
'' AS SOURCE_21,
'' AS SOURCE_22,
'' AS SOURCE_23,
'' AS SOURCE_24,
'' AS SOURCE_25,
0 AS QUALITY_1,
0 AS QUALITY_2,
0 AS QUALITY_3,
0 AS QUALITY_4,
0 AS QUALITY_5,
0 AS QUALITY_6,
0 AS QUALITY_7,
0 AS QUALITY_8,
0 AS QUALITY_9,
0 AS QUALITY_10,
0 AS QUALITY_11,
0 AS QUALITY_12,
0 AS QUALITY_13,
0 AS QUALITY_14,
0 AS QUALITY_15,
0 AS QUALITY_16,
0 AS QUALITY_17,
0 AS QUALITY_18,
0 AS QUALITY_19,
0 AS QUALITY_20,
0 AS QUALITY_21,
0 AS QUALITY_22,
0 AS QUALITY_23,
0 AS QUALITY_24,
0 AS QUALITY_25,
20130228 AS DAY,
TRUNC(20130228 ,-2) AS FIRST_DAY,
TRUNC(20130228 ,-2) + 31 AS LAST_DAY,
NVL (MTY.COD_USER, '') AS ORIGIN,
SC.ID_CONTRACTED_SERVICE,
0 AS BAJA,
NVL(SC.IND_GUARANTOR, 0) AS GESTION_ATR,
SC.NISC
FROM GCGT_RE_MEASUREMENT_POINT MP
INNER JOIN GCCOM_SECTOR_SUPPLY SS ON MP.ID_SECTOR_SUPPLY = SS.ID_SECTOR_SUPPLY
INNER JOIN GCGT_ME_MEASURER M ON M.ID_MEASURER = MP.ID_MEASURER
INNER JOIN GCCOM_CONTRACTED_SERVICE SC ON SC.ID_SECTOR_SUPPLY = SS.ID_SECTOR_SUPPLY
INNER JOIN GCCOM_CONTRACT CO ON CO.ID_CONTRACT = SC.ID_CONTRACT
INNER JOIN GCGT_RE_MP_NATURE NAT ON NAT.ID_MP_NATURE = MP.ID_MP_NATURE
INNER JOIN GCGT_ME_MEA_CTYPE_HIST CTYP ON MP.ID_MEASURER = CTYP.ID_MEASURER
INNER JOIN GCGT_RE_MODE_TYPE MTY ON MTY.COD_DEVELOP = NAT.COD_MODO
WHERE
1 = 1
AND 1 = 1
AND CTYP.FROM_DATE <= 20130228
AND (CTYP.TO_DATE IS NULL OR CTYP.TO_DATE >= 20130201 )
AND CTYP.COD_USAGE_TYPE NOT IN ('AEH', 'R1H', 'AEQ', 'R1Q')
AND MP.CUPS IS NOT NULL
AND SC.STATUS NOT IN ('ESTSC00004', 'ESTSC00005')
AND (SC.DROP_DATE is null or SC.DROP_DATE >= (TO_DATE(20130228 , 'YYYYMMDD')) )
/*and to_char(SC.FROM_DATE,'YYYYMM') <= SUBSTR (:P_INI_DATE, 1, 6) PMR */
AND SC.FROM_DATE <= LAST_DAY(TO_DATE(20130201 , 'YYYYMMDD'))
AND (CO.STATUS not in ('ESTCO00005','ESTCO00004') or (CO.END_DATE >= (TO_DATE (20130201 , 'YYYYMMDD')) and CO.STATUS = 'ESTCO00005' ) or (CO.DROP_DATE >= (TO_DATE (20130201 , 'YYYYMMDD')) and CO.STATUS = 'ESTCO00004'))
AND EXISTS
(SELECT UTM.ID_MEASURER
FROM GCGT_ME_USAGE_TYPE_METER UTM
WHERE UTM.ID_MEASURER = MP.ID_MEASURER
AND UTM.COD_USAGE_TYPE = CTYP.COD_USAGE_TYPE
)
AND NOT EXISTS(
SELECT 1
FROM CONSUM C
WHERE C.ID_MEASURER = MP.ID_MEASURER
AND C.ID_MEASURING_POINT = MP.ID_MEASURING_POINT
AND C.CONSUM_TYPE = CTYP.COD_USAGE_TYPE))
SELECT
CORE.NISS,
CORE.ID_CONTRACT,
'' AS MOT_BLOQ,
CORE.FECHA_INI_CONTRATO,
SUBSTR (CORE.DAY, 1, 6) AS PERIODO,
EATT.FOREIGN_CONTRACT_NUMBER AS ATR_POLICY,
COM.NAME_TYPE AS COD_DISTRIBUIDORA,
--NVL (ROC.IND_CALC_ORDER, 0) AS IND_CALC_ORDER,
(SELECT COUNT (1)
FROM gccom_delivery_note dn
WHERE dn.id_contracted_service = CORE.ID_CONTRACTED_SERVICE
AND dn.delivery_note_status in ('BIDOCST001', 'BIDOCST003' )
AND dn.ind_simulated = 0
AND TO_CHAR (dn.forecast_billing_date, 'YYYYMM') >= SUBSTR (CORE.DAY, 1, 6)
AND ROWNUM < 2)
AS IND_CALC_ORDER,
--NVL (ROC.IND_SENT_FACT, 0) AS IND_SENT_FACT,
(SELECT COUNT (1)
FROM gccom_delivery_note dn
WHERE dn.id_contracted_service = CORE.ID_CONTRACTED_SERVICE
AND dn.delivery_note_status = 'BIDOCST001'
AND dn.ind_simulated = 0
AND (dn.ind_not_billed = 0 or dn.ind_not_billed is null)
AND TO_CHAR (dn.forecast_billing_date, 'YYYYMM') >= SUBSTR (CORE.DAY, 1, 6)
AND ROWNUM < 2)
AS IND_SENT_FACT,
--NVL (ROC3.IND_SENT_FACT, 0) AS IND_SENT_FACT_ANT,
(SELECT COUNT (1)
FROM gccom_delivery_note dn
WHERE dn.id_contracted_service = CORE.ID_CONTRACTED_SERVICE
AND dn.delivery_note_status = 'BIDOCST001'
AND dn.ind_simulated = 0
AND (dn.ind_not_billed = 0 or dn.ind_not_billed is null)
AND TO_CHAR(dn.forecast_billing_date, 'YYYYMM') = (select TO_CHAR(max(dn.forecast_billing_date),'YYYYMM')
FROM gccom_delivery_note dn
where dn.id_contracted_service = CORE.ID_CONTRACTED_SERVICE
and TO_CHAR(dn.forecast_billing_date, 'YYYYMM') < SUBSTR (CORE.DAY, 1, 6))
AND ROWNUM <2 )AS IND_SENT_FACT_ANT,
CORE.CUPS,
FAR.SHORT_NAME_TYPE AS TARIFA,
CT.DESCRIPTION AS TIPO_CLIENTE,
CORE.TELEMEDIDO,
CORE.RELEVANT_CONSUM_TYPE,
(
SELECT COUNT (1)
FROM GCGT_RE_READING_E RE
WHERE RE.ID_MEASURER = CORE.ID_MEASURER
AND RE.DAY BETWEEN CORE.FIRST_DAY AND CORE.LAST_DAY
) AS CLOSED,
(
SELECT COUNT (1)
FROM GCGT_RE_MEASUREMENT_POINT RRMP
WHERE RRMP.ID_SECTOR_SUPPLY = CORE.ID_SECTOR_SUPPLY
) AS MULTIPLEPM,
NVL(
(
SELECT CGMV.NAME_TYPE
FROM GCCOM_LOST_HISTORY_SS GLH
INNER JOIN GCCOM_MASTER_VALUES CGMV ON GLH.COD_VALUE = CGMV.COD_VALUE
WHERE GLH.ID_SECTOR_SUPPLY = CORE.ID_SECTOR_SUPPLY
AND TO_DATE(CORE.DAY, 'YYYYMMDD') BETWEEN GLH.INIT_DATE AND GLH.END_DATE AND ROWNUM < 2
), '') AS ITC,
CORE.CONSUM_TYPE,
CORE.VALUE_1,
CORE.VALUE_2,
CORE.VALUE_3,
CORE.VALUE_4,
CORE.VALUE_5,
CORE.VALUE_6,
CORE.VALUE_7,
CORE.VALUE_8,
CORE.VALUE_9,
CORE.VALUE_10,
CORE.VALUE_11,
CORE.VALUE_12,
CORE.VALUE_13,
CORE.VALUE_14,
CORE.VALUE_15,
CORE.VALUE_16,
CORE.VALUE_17,
CORE.VALUE_18,
CORE.VALUE_19,
CORE.VALUE_20,
CORE.VALUE_21,
CORE.VALUE_22,
CORE.VALUE_23,
CORE.VALUE_24,
CORE.VALUE_25,
CORE.SOURCE_1,
CORE.SOURCE_2,
CORE.SOURCE_3,
CORE.SOURCE_4,
CORE.SOURCE_5,
CORE.SOURCE_6,
CORE.SOURCE_7,
CORE.SOURCE_8,
CORE.SOURCE_9,
CORE.SOURCE_10,
CORE.SOURCE_11,
CORE.SOURCE_12,
CORE.SOURCE_13,
CORE.SOURCE_14,
CORE.SOURCE_15,
CORE.SOURCE_16,
CORE.SOURCE_17,
CORE.SOURCE_18,
CORE.SOURCE_19,
CORE.SOURCE_20,
CORE.SOURCE_21,
CORE.SOURCE_22,
CORE.SOURCE_23,
CORE.SOURCE_24,
CORE.SOURCE_25,
CORE.QUALITY_1,
CORE.QUALITY_2,
CORE.QUALITY_3,
CORE.QUALITY_4,
CORE.QUALITY_5,
CORE.QUALITY_6,
CORE.QUALITY_7,
CORE.QUALITY_8,
CORE.QUALITY_9,
CORE.QUALITY_10,
CORE.QUALITY_11,
CORE.QUALITY_12,
CORE.QUALITY_13,
CORE.QUALITY_14,
CORE.QUALITY_15,
CORE.QUALITY_16,
CORE.QUALITY_17,
CORE.QUALITY_18,
CORE.QUALITY_19,
CORE.QUALITY_20,
CORE.QUALITY_21,
CORE.QUALITY_22,
CORE.QUALITY_23,
CORE.QUALITY_24,
CORE.QUALITY_25,
CORE.DAY,
ORI.DESCRIPTION AS ORIGIN,
CORE.ID_CONTRACTED_SERVICE,
CORE.BAJA,
CORE.GESTION_ATR,
NVL ((SELECT IND_COGENERATION
FROM GCCOM_CONTSERV_SPECIALTYPES SP
WHERE CORE.ID_CONTRACTED_SERVICE = SP.ID_CONTRACTED_SERVICE
AND (SP.END_DATE IS NULL OR SP.END_DATE >= TO_DATE (20130228 , 'YYYYMMDD'))
AND SP.INI_DATE <= TO_DATE (20130228 , 'YYYYMMDD')), 0) AS COGENERADOR,
CORE.NISC
FROM CORE,
GCGT_ELECTRIC_ATTRIBUTES EATT,
GCCOM_COMPANY COM,
GCGT_ME_RATE_METER RM,
GCGT_ME_COMBINATION_USAGE_TYPE CUT,
GCCOM_FARE FAR,
GCGT_RE_MP_CUSTOMER_TYPE CT,
GCGT_RE_ORIGIN ORI
WHERE EATT.ID_SECTOR_SUPPLY = CORE.ID_SECTOR_SUPPLY
AND COM.ID_COMPANY = CORE.ID_DISTRIBUTER
AND CUT.ID_COMBINATION_USAGE_TYPE (+) = CORE.ID_COMBINATION_USAGE_TYPE
AND CUT.ID_RATE_METER = RM.ID_RATE_METER (+)
AND FAR.ID_FARE (+) = RM.ID_FARE
AND (CT.COD_DEVELOP = CORE.MP_FUNCTION or CORE.MP_FUNCTION is null)
AND ORI.COD_DEVELOP = CORE.ORIGIN;
解释计划如下所示：
PLAN_TABLE_OUTPUT
-------------------------------------------------------------------------------------------------------------------------------------------------------------
Plan hash value: 398847285
-------------------------------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | Pstart| Pstop |
-------------------------------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 186K| 63M| | 1352K (1)| 04:30:26 | | |
| 1 | SORT AGGREGATE | | 1 | 28 | | | | | |
|* 2 | COUNT STOPKEY | | | | | | | | |
| 3 | PARTITION RANGE ALL | | 2 | 56 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 4 | TABLE ACCESS BY LOCAL INDEX ROWID | GCCOM_DELIVERY_NOTE | 2 | 56 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 5 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_28 | 33 | | | 65 (0)| 00:00:01 | 1 | 108 |
| 6 | SORT AGGREGATE | | 1 | 30 | | | | | |
|* 7 | COUNT STOPKEY | | | | | | | | |
| 8 | PARTITION RANGE ALL | | 2 | 60 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 9 | TABLE ACCESS BY LOCAL INDEX ROWID | GCCOM_DELIVERY_NOTE | 2 | 60 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 10 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_28 | 33 | | | 65 (0)| 00:00:01 | 1 | 108 |
| 11 | SORT AGGREGATE | | 1 | 30 | | | | | |
|* 12 | COUNT STOPKEY | | | | | | | | |
|* 13 | FILTER | | | | | | | | |
| 14 | PARTITION RANGE ALL | | 32 | 960 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 15 | TABLE ACCESS BY LOCAL INDEX ROWID | GCCOM_DELIVERY_NOTE | 32 | 960 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 16 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_28 | 33 | | | 65 (0)| 00:00:01 | 1 | 108 |
| 17 | SORT AGGREGATE | | 1 | 14 | | | | | |
| 18 | PARTITION RANGE ALL | | 2 | 28 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 19 | TABLE ACCESS BY LOCAL INDEX ROWID| GCCOM_DELIVERY_NOTE | 2 | 28 | | 75 (0)| 00:00:01 | 1 | 108 |
|* 20 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_28 | 33 | | | 65 (0)| 00:00:01 | 1 | 108 |
| 21 | SORT AGGREGATE | | 1 | 12 | | | | | |
|* 22 | INDEX RANGE SCAN | IDX_GCGT_RE_READING_E_16 | 1 | 12 | | 1 (0)| 00:00:01 | | |
| 23 | SORT AGGREGATE | | 1 | 6 | | | | | |
|* 24 | INDEX RANGE SCAN | IDX_GCGT_REMEASPOINT_SSMP_01 | 1 | 6 | | 1 (0)| 00:00:01 | | |
|* 25 | COUNT STOPKEY | | | | | | | | |
| 26 | NESTED LOOPS | | | | | | | | |
| 27 | NESTED LOOPS | | 1 | 61 | | 2 (0)| 00:00:01 | | |
|* 28 | TABLE ACCESS BY INDEX ROWID | GCCOM_LOST_HISTORY_SS | 1 | 30 | | 1 (0)| 00:00:01 | | |
|* 29 | INDEX RANGE SCAN | IDX_GCCOMLOSTHISTORYSS_01 | 1 | | | 1 (0)| 00:00:01 | | |
|* 30 | INDEX UNIQUE SCAN | PK_GCCOM_MASTER_VALUES | 1 | | | 1 (0)| 00:00:01 | | |
| 31 | TABLE ACCESS BY INDEX ROWID | GCCOM_MASTER_VALUES | 1 | 31 | | 1 (0)| 00:00:01 | | |
|* 32 | TABLE ACCESS BY INDEX ROWID | GCCOM_CONTSERV_SPECIALTYPES | 1 | 24 | | 1 (0)| 00:00:01 | | |
|* 33 | INDEX RANGE SCAN | IDX_GCCOMCONTSERVSPETYP_01 | 1 | | | 1 (0)| 00:00:01 | | |
|* 34 | FILTER | | | | | | | | |
|* 35 | HASH JOIN | | 186K| 63M| | 146K (1)| 00:29:16 | | |
| 36 | TABLE ACCESS FULL | GCCOM_COMPANY | 1116 | 34596 | | 9 (0)| 00:00:01 | | |
|* 37 | HASH JOIN | | 194K| 60M| 22M| 146K (1)| 00:29:16 | | |
| 38 | PART JOIN FILTER CREATE | :BF0000 | 722K| 13M| | 5316 (1)| 00:01:04 | | |
| 39 | PARTITION REFERENCE ALL | | 722K| 13M| | 5316 (1)| 00:01:04 | 1 | 10 |
| 40 | TABLE ACCESS FULL | GCGT_ELECTRIC_ATTRIBUTES | 722K| 13M| | 5316 (1)| 00:01:04 | 1 | 10 |
|* 41 | HASH JOIN | | 207K| 61M| | 136K (1)| 00:27:21 | | |
| 42 | TABLE ACCESS FULL | GCGT_RE_ORIGIN | 3 | 42 | | 3 (0)| 00:00:01 | | |
|* 43 | HASH JOIN | | 207K| 58M| 22M| 136K (1)| 00:27:21 | | |
| 44 | PARTITION REFERENCE ALL | | 486K| 17M| | 4618 (1)| 00:00:56 | 1 | 10 |
|* 45 | TABLE ACCESS FULL | GCCOM_CONTRACT | 486K| 17M| | 4618 (1)| 00:00:56 | 1 | 10 |
|* 46 | HASH JOIN | | 207K| 50M| 19M| 128K (1)| 00:25:41 | | |
| 47 | PART JOIN FILTER CREATE | :BF0001 | 286K| 16M| | 7118 (1)| 00:01:26 | | |
| 48 | PARTITION HASH ALL | | 286K| 16M| | 7118 (1)| 00:01:26 | 1 | 16 |
|* 49 | TABLE ACCESS FULL | GCCOM_CONTRACTED_SERVICE | 286K| 16M| | 7118 (1)| 00:01:26 | 1 | 16 |
|* 50 | HASH JOIN RIGHT OUTER | | 559K| 104M| | 114K (1)| 00:22:57 | | |
| 51 | TABLE ACCESS FULL | GCCOM_FARE | 374 | 3366 | | 6 (0)| 00:00:01 | | |
|* 52 | HASH JOIN RIGHT OUTER | | 559K| 99M| | 114K (1)| 00:22:57 | | |
| 53 | TABLE ACCESS FULL | GCGT_ME_RATE_METER | 59 | 590 | | 3 (0)| 00:00:01 | | |
| 54 | NESTED LOOPS SEMI | | 559K| 94M| | 114K (1)| 00:22:57 | | |
|* 55 | HASH JOIN | | 559K| 89M| 74M| 114K (1)| 00:22:57 | | |
|* 56 | TABLE ACCESS FULL | GCGT_ME_MEA_CTYPE_HIST | 2115K| 50M| | 50950 (1)| 00:10:12 | | |
|* 57 | HASH JOIN RIGHT OUTER | | 521K| 70M| | 56226 (1)| 00:11:15 | | |
| 58 | TABLE ACCESS FULL | GCGT_ME_COMBINATION_USAGE_TYPE | 378 | 3024 | | 4 (0)| 00:00:01 | | |
|* 59 | HASH JOIN | | 521K| 66M| 67M| 56219 (1)| 00:11:15 | | |
|* 60 | HASH JOIN | | 521K| 61M| 25M| 18543 (1)| 00:03:43 | | |
| 61 | PARTITION HASH AND | | 771K| 16M| | 8246 (1)| 00:01:39 |KEY(AP)|KEY(AP)|
| 62 | TABLE ACCESS FULL | GCCOM_SECTOR_SUPPLY | 771K| 16M| | 8246 (1)| 00:01:39 |KEY(AP)|KEY(AP)|
|* 63 | HASH JOIN | | 521K| 50M| | 6235 (1)| 00:01:15 | | |
|* 64 | HASH JOIN | | 260 | 11440 | | 15 (7)| 00:00:01 | | |
| 65 | MERGE JOIN CARTESIAN | | 15 | 435 | | 12 (0)| 00:00:01 | | |
| 66 | TABLE ACCESS FULL | GCGT_RE_MP_CUSTOMER_TYPE | 5 | 70 | | 3 (0)| 00:00:01 | | |
| 67 | BUFFER SORT | | 3 | 45 | | 9 (0)| 00:00:01 | | |
| 68 | TABLE ACCESS FULL | GCGT_RE_MODE_TYPE | 3 | 45 | | 2 (0)| 00:00:01 | | |
| 69 | VIEW | index$_join$_011 | 52 | 780 | | 3 (34)| 00:00:01 | | |
|* 70 | HASH JOIN | | | | | | | | |
| 71 | INDEX FAST FULL SCAN | FK_RE_MP_NATUR_RE_MODE_TYPE_01 | 52 | 780 | | 1 (0)| 00:00:01 | | |
| 72 | INDEX FAST FULL SCAN | PK_GCGT_RE_MP_NATURE | 52 | 780 | | 1 (0)| 00:00:01 | | |
|* 73 | TABLE ACCESS FULL | GCGT_RE_MEASUREMENT_POINT | 454K| 25M| | 6210 (1)| 00:01:15 | | |
| 74 | TABLE ACCESS FULL | GCGT_ME_MEASURER | 7195K| 68M| | 26770 (1)| 00:05:22 | | |
|* 75 | INDEX UNIQUE SCAN | IDX_GCGTMEUSAGETYPEMETER_08 | 10M| 96M| | 1 (0)| 00:00:01 | | |
|* 76 | TABLE ACCESS BY GLOBAL INDEX ROWID | GCGT_RE_CONSUM_H_E | 1 | 25 | | 7 (0)| 00:00:01 | 87 | 87 |
|* 77 | INDEX RANGE SCAN | IDX_GCGTRECONSUMHE02 | 1 | | | 1 (0)| 00:00:01 | | |
-------------------------------------------------------------------------------------------------------------------------------------------------
147 filas seleccionadas.
我尝试了索引：
索引IDX_GCCOM_DELIVERY_NOTE_30 在GCCOM_DELIVERY_NOTE（“ID_CONTRACTED_SERVICE”，TO_CHAR（“FORECAST_BILLING_DATE”，“YYYYMM”））
索引IDX_GCCOM_DELIVERY_NOTE_31 在GCCOM_DELIVERY_NOTE（“ID_CONTRACTED_SERVICE”，“DELIVERY_NOTE_STATUS”，“IND_SIMULATED”，TO_CHAR（“FORECAST_BILLING_DATE”，“YYYYMM”））;
索引IDX_GCCOMLOSTHISTORYSS_02 在GCCOM_LOST_HISTORY_SS上（“ID_SECTOR_SUPPLY”，“END_DATE”，“COD_VALUE”）;
但是解释计划没有显示出很大的改进：
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Plan hash value: 2244861761
--------------------------------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | Pstart| Pstop |
--------------------------------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 186K| 63M| | 1352K (1)| 04:30:26 | | |
| 1 | SORT AGGREGATE | | 1 | 25 | | | | | |
|* 2 | COUNT STOPKEY | | | | | | | | |
| 3 | INLIST ITERATOR | | | | | | | | |
|* 4 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_31 | 2 | 50 | | 1 (0)| 00:00:01 | | |
| 5 | SORT AGGREGATE | | 1 | 27 | | | | | |
|* 6 | COUNT STOPKEY | | | | | | | | |
|* 7 | TABLE ACCESS BY GLOBAL INDEX ROWID | GCCOM_DELIVERY_NOTE | 2 | 54 | | 1 (0)| 00:00:01 | ROWID | ROWID |
|* 8 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_30 | 1 | | | 1 (0)| 00:00:01 | | |
| 9 | SORT AGGREGATE | | 1 | 27 | | | | | |
|* 10 | COUNT STOPKEY | | | | | | | | |
|* 11 | TABLE ACCESS BY GLOBAL INDEX ROWID | GCCOM_DELIVERY_NOTE | 1 | 27 | | 1 (0)| 00:00:01 | ROWID | ROWID |
|* 12 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_30 | 1 | | | 1 (0)| 00:00:01 | | |
| 13 | SORT AGGREGATE | | 1 | 19 | | | | | |
| 14 | TABLE ACCESS BY GLOBAL INDEX ROWID| GCCOM_DELIVERY_NOTE | 2 | 38 | | 1 (0)| 00:00:01 | ROWID | ROWID |
|* 15 | INDEX RANGE SCAN | IDX_GCCOM_DELIVERY_NOTE_30 | 1 | | | 1 (0)| 00:00:01 | | |
| 16 | SORT AGGREGATE | | 1 | 12 | | | | | |
|* 17 | INDEX RANGE SCAN | IDX_GCGT_RE_READING_E_16 | 1 | 12 | | 1 (0)| 00:00:01 | | |
| 18 | SORT AGGREGATE | | 1 | 6 | | | | | |
|* 19 | INDEX RANGE SCAN | IDX_GCGT_REMEASPOINT_SSMP_01 | 1 | 6 | | 1 (0)| 00:00:01 | | |
|* 20 | COUNT STOPKEY | | | | | | | | |
| 21 | NESTED LOOPS | | | | | | | | |
| 22 | NESTED LOOPS | | 1 | 61 | | 2 (0)| 00:00:01 | | |
|* 23 | TABLE ACCESS BY INDEX ROWID | GCCOM_LOST_HISTORY_SS | 1 | 30 | | 1 (0)| 00:00:01 | | |
|* 24 | INDEX RANGE SCAN | IDX_GCCOMLOSTHISTORYSS_02 | 1 | | | 1 (0)| 00:00:01 | | |
|* 25 | INDEX UNIQUE SCAN | PK_GCCOM_MASTER_VALUES | 1 | | | 1 (0)| 00:00:01 | | |
| 26 | TABLE ACCESS BY INDEX ROWID | GCCOM_MASTER_VALUES | 1 | 31 | | 1 (0)| 00:00:01 | | |
|* 27 | TABLE ACCESS BY INDEX ROWID | GCCOM_CONTSERV_SPECIALTYPES | 1 | 24 | | 1 (0)| 00:00:01 | | |
|* 28 | INDEX RANGE SCAN | IDX_GCCOMCONTSERVSPETYP_01 | 1 | | | 1 (0)| 00:00:01 | | |
|* 29 | FILTER |
我正在比较应用索引之前和之后的解释计划。
我看到Access路径有一些变化，但整体结果是一样的。
查询有任何改进吗？
这些是表访问已满，我是否必须在它们上面编写索引？
Line 43: | 36 | TABLE ACCESS FULL | GCCOM_COMPANY | 1116 | 34596 | | 9 (0)| 00:00:01 | | |
Line 47: | 40 | TABLE ACCESS FULL | GCGT_ELECTRIC_ATTRIBUTES | 722K| 13M| | 5316 (1)| 00:01:04 | 1 | 10 |
Line 49: | 42 | TABLE ACCESS FULL | GCGT_RE_ORIGIN | 3 | 42 | | 3 (0)| 00:00:01 | | |
Line 52: |* 45 | TABLE ACCESS FULL | GCCOM_CONTRACT | 486K| 17M| | 4618 (1)| 00:00:56 | 1 | 10 |
Line 56: |* 49 | TABLE ACCESS FULL | GCCOM_CONTRACTED_SERVICE | 286K| 16M| | 7118 (1)| 00:01:26 | 1 | 16 |
Line 58: | 51 | TABLE ACCESS FULL | GCCOM_FARE | 374 | 3366 | | 6 (0)| 00:00:01 | | |
Line 60: | 53 | TABLE ACCESS FULL | GCGT_ME_RATE_METER | 59 | 590 | | 3 (0)| 00:00:01 | | |
Line 63: |* 56 | TABLE ACCESS FULL | GCGT_ME_MEA_CTYPE_HIST | 2115K| 50M| | 50950 (1)| 00:10:12 | | |
Line 65: | 58 | TABLE ACCESS FULL | GCGT_ME_COMBINATION_USAGE_TYPE | 378 | 3024 | | 4 (0)| 00:00:01 | | |
Line 69: | 62 | TABLE ACCESS FULL | GCCOM_SECTOR_SUPPLY | 771K| 16M| | 8246 (1)| 00:01:39 |KEY(AP)|KEY(AP)|
Line 73: | 66 | TABLE ACCESS FULL | GCGT_RE_MP_CUSTOMER_TYPE | 5 | 70 | | 3 (0)| 00:00:01 | | |
Line 75: | 68 | TABLE ACCESS FULL | GCGT_RE_MODE_TYPE | 3 | 45 | | 2 (0)| 00:00:01 | | |
Line 80: |* 73 | TABLE ACCESS FULL | GCGT_RE_MEASUREMENT_POINT | 454K| 25M| | 6210 (1)| 00:01:15 | | |
Line 81: | 74 | TABLE ACCESS FULL | GCGT_ME_MEASURER | 7195K| 68M| | 26770 (1)| 00:05:22 | | |
我没有考虑用GATHER_TABLE_STATS的提示执行查询，让我试试!!
我回来了结果!!