我有一个代码，可以按出发日期对从公共汽车出发的每条路线进行计数，但是我需要对从148号路线出发的前一天加上139号路线的任何一天进行计数。
我有一个带有变量的视图：DEP_DATE（DATE），DepartureDate（Datetime），路线（数字）
export default function Map(){
const [viewport, setViewport] = useState(mapConfig.viewport);
const [style, setStyle] = useState(mapConfig.mapStyle);
const [layers, setLayers] = useState(mapConfig.layers);
function updateLayers(layers){
setLayers(layers); //why won't LayerControl re-render?
}
return(
<MapGL
zoom={[viewport.zoom]}
containerStyle={{
height: "100%",
width: "100%"
}}
style={style}>
<LayerControl
onLayerChange={layers => updateLayers(layers)}
layers={layers}
/>
<ZoomControl/>
<ScaleControl/>
</MapGL>
);
}
让我编写的代码如下：
DEP_DATE DepartureDate Route= 139 Route= 148 Route=129 Route=61 Route=134 Route=60
08/02/2019 2019-02-08T15:00:00 0 0 0 0 0 0
08/02/2019 2019-02-08T10:45:00 0 0 0 0 0 0
08/02/2019 2019-02-08T08:30:00 0 0 0 0 0 0
08/02/2019 2019-02-08T08:15:00 0 0 0 0 0 0
08/02/2019 2019-02-08T21:00:00 0 0 0 0 0 0
08/02/2019 2019-02-08T13:00:00 0 0 0 0 0 0
08/02/2019 2019-02-08T06:30:00 0 0 0 11 0 0
08/02/2019 2019-02-08T19:00:00 0 0 21 0 0 0
08/02/2019 2019-02-08T06:00:00 0 0 0 0 10 13
08/02/2019 2019-02-08T17:30:00 0 0 2 0 0 0
08/02/2019 2019-02-08T05:30:00 1 0 0 0 0 0
08/02/2019 2019-02-08T14:45:00 0 0 0 0 0 0
08/02/2019 2019-02-08T07:00:00 0 0 0 0 0 0
09/02/2019 2019-02-09T20:15:00 0 0 0 0 0 0
09/02/2019 2019-02-09T22:00:00 0 2 0 0 0 0
09/02/2019 2019-02-09T20:30:00 0 0 8 0 0 0
09/02/2019 2019-02-09T08:30:00 0 0 0 0 0 0
09/02/2019 2019-02-09T07:00:00 0 0 0 12 0 0
09/02/2019 2019-02-09T19:00:00 0 0 12 0 0 0
09/02/2019 2019-02-09T06:00:00 0 0 0 0 20 7
09/02/2019 2019-02-09T15:00:00 0 0 0 0 0 0
09/02/2019 2019-02-09T06:30:00 0 0 0 0 0 0
09/02/2019 2019-02-09T08:15:00 0 0 0 0 0 0
09/02/2019 2019-02-09T18:15:00 0 0 0 0 0 0
09/02/2019 2019-02-09T14:45:00 0 0 0 0 0 0
09/02/2019 2019-02-09T13:00:00 0 0 0 0 0 0
10/02/2019 2019-02-10T21:00:00 0 0 0 0 0 0
10/02/2019 2019-02-10T10:45:00 0 0 0 0 0 0
10/02/2019 2019-02-10T06:00:00 0 0 0 0 11 11
10/02/2019 2019-02-10T13:00:00 0 0 0 0 0 0
10/02/2019 2019-02-10T08:30:00 0 0 0 0 0 0
10/02/2019 2019-02-10T08:15:00 0 0 0 22 0 0
10/02/2019 2019-02-10T19:00:00 0 0 21 0 0 0
10/02/2019 2019-02-10T07:00:00 0 0 0 0 0 0
10/02/2019 2019-02-10T20:15:00 0 0 0 0 0 0
10/02/2019 2019-02-10T15:00:00 0 0 0 0 0 0
10/02/2019 2019-02-10T20:30:00 0 1 2 0 0 0
10/02/2019 2019-02-10T06:30:00 0 0 0 0 0 0
10/02/2019 2019-02-10T18:15:00 0 0 0 10 0 0
11/02/2019 2019-02-11T19:00:00 0 0 32 0 0 0
11/02/2019 2019-02-11T08:30:00 0 0 0 0 0 0
11/02/2019 2019-02-11T06:00:00 0 0 0 0 14 12
11/02/2019 2019-02-11T00:45:00 0 0 0 0 0 0
11/02/2019 2019-02-11T15:00:00 0 0 0 0 0 0
11/02/2019 2019-02-11T08:15:00 0 0 0 0 0 0
11/02/2019 2019-02-11T13:00:00 0 0 0 0 0 0
11/02/2019 2019-02-11T06:30:00 0 0 0 0 0 0
11/02/2019 2019-02-11T07:00:00 0 0 0 0 0 0
11/02/2019 2019-02-11T10:45:00 0 0 0 0 0 0
12/02/2019 2019-02-12T08:30:00 0 0 0 0 0 0
12/02/2019 2019-02-12T13:00:00 0 0 0 0 0 0
12/02/2019 2019-02-12T06:00:00 0 0 0 0 10 8
12/02/2019 2019-02-12T15:00:00 0 0 0 0 0 0
12/02/2019 2019-02-12T10:45:00 0 0 0 0 0 0
12/02/2019 2019-02-12T07:00:00 0 0 0 0 0 0
12/02/2019 2019-02-12T14:45:00 0 0 0 15 0 0
12/02/2019 2019-02-12T19:00:00 0 0 14 0 0 0
12/02/2019 2019-02-12T22:00:00 0 2 0 0 0 0
13/02/2019 2019-02-13T13:00:00 0 0 0 0 0 0
13/02/2019 2019-02-13T18:15:00 0 0 0 0 0 0
13/02/2019 2019-02-13T08:15:00 0 0 0 0 0 0
13/02/2019 2019-02-13T20:15:00 0 1 0 0 0 0
13/02/2019 2019-02-13T15:00:00 0 0 0 0 0 0
13/02/2019 2019-02-13T14:45:00 0 0 0 0 0 0
13/02/2019 2019-02-13T08:30:00 0 0 0 0 0 0
13/02/2019 2019-02-13T07:00:00 0 0 0 0 0 0
13/02/2019 2019-02-13T06:00:00 0 0 0 0 7 7
13/02/2019 2019-02-13T21:00:00 0 0 0 0 0 0
13/02/2019 2019-02-13T06:30:00 0 0 0 3 0 0
13/02/2019 2019-02-13T19:00:00 0 0 24 0 0 0
14/02/2019 2019-02-14T18:15:00 0 0 0 0 0 0
14/02/2019 2019-02-14T20:30:00 0 0 3 0 0 0
14/02/2019 2019-02-14T07:00:00 0 0 0 0 0 0
14/02/2019 2019-02-14T06:00:00 0 0 0 0 4 2
14/02/2019 2019-02-14T15:00:00 0 0 0 10 0 0
14/02/2019 2019-02-14T19:00:00 0 0 10 0 0 0
14/02/2019 2019-02-14T13:00:00 2 0 0 0 0 0
14/02/2019 2019-02-14T08:30:00 0 0 0 0 0 0
我的结果是这样的
SELECT
DEP_DATE,
COUNTIF( RouteId = 139) + COUNTIF( RouteId = 148 AND DepartureDate =
DATETIME_SUB(departureDate, INTERVAL 1 DAY)) AS BUS_1,
COUNTIF( RouteId = 134 ) + COUNTIF( RouteId = 60 ) AS BUS_2,
COUNTIF( RouteId = 134 AND EXTRACT(HOUR FROM DepartureDate) = 6) +
COUNTIF( RouteId = 60 AND EXTRACT(HOUR FROM DepartureDate) = 6) AS
BUS_3,
FROM
`project.dataset.view`
WHERE
DepartureDate >
DATETIME_TRUNC(DATETIME_SUB(CURRENT_DATETIME("America/Lima"), INTERVAL 3
DAY),DAY)
GROUP BY
DEP_DATE
但是我期望我对“ Bus_1”的计数是这样的：
DEP_DATE Bus_1 Bus_2 Bus_3 Explanation_Bus_1: Route_139 Route_148
08/02/2019 1 34 23 1 0
09/02/2019 2 32 27 0 2
10/02/2019 1 45 22 0 1
11/02/2019 0 42 26 0 0
12/02/2019 2 29 18 2 0
13/02/2019 0 27 14 0 1
14/02/2019 3 23 6 2 0
每条路线148的计数必须在公交1的第二天进行计数
答案 0 :(得分：0)
您需要检查日期是星期五，星期三还是星期六。如果是那一天中的某一天，则计算否则默认为0。
大查询条件表达式： https://cloud.google.com/bigquery/docs/reference/standard-sql/conditional_expressions
大查询日期功能： https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions
尝试一下：
SELECT
T1.DEP_DATE,
T2.BUS_1 AS BUS_1,
COUNTIF( RouteId = 134 ) + COUNTIF( RouteId = 60 ) AS BUS_2,
COUNTIF( RouteId = 134 AND EXTRACT(HOUR FROM DepartureDate) = 6) +
COUNTIF( RouteId = 60 AND EXTRACT(HOUR FROM DepartureDate) = 6) AS
BUS_3,
FROM
`project.dataset.view` T1
LEFT JOIN (
SELECT
DATEADD(DEP_DATE, 1, DAY) AS DEP_DATE,
COUNTIF(RouteId = 139) + COUNTIF(RouteId = 148) AS BUS_1
FROM project.dataset.view
GROUP BY DEP_DATE
) T2
ON T1.DEP_DATE = T2.DEP_DATE
WHERE
DepartureDate >
DATETIME_TRUNC(DATETIME_SUB(CURRENT_DATETIME("America/Lima"), INTERVAL 3
DAY),DAY)
GROUP BY
T1.DEP_DATE, T2.BUS_1