Standard SQL ใน Google BigQuery: ข้อดีและตัวอย่างการใช้งานในการตลาด

ข้อดีของ Standard SQL เหนือ Legacy SQL คืออะไร?

ชนิดข้อมูลใหม่: อาร์เรย์และฟิลด์ที่ซ้อนกัน

    #standardSQL SELECT COUNT (DISTINCT hits.transaction.transactionId) -- count the number of unique order numbers; DISTINCT helps to avoid duplication FROM `project_name.dataset_name.owoxbi_sessions_*` -- refer to the table group (wildcard tables) WHERE ( _TABLE_SUFFIX BETWEEN FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 MONTHS)) -- if we don't know which dates we need, it's better to use the function FORMAT_DATE INTERVAL AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)) ) AND geoNetwork.city = 'New York' -- choose orders made in New York City
#standardSQL SELECT COUNT (DISTINCT hits.transaction.transactionId) -- count the number of unique order numbers; DISTINCT helps to avoid duplication FROM `project_name.dataset_name.owoxbi_sessions_*` -- refer to the table group (wildcard tables) WHERE ( _TABLE_SUFFIX BETWEEN FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 MONTHS)) -- if we don't know which dates we need, it's better to use the function FORMAT_DATE INTERVAL AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)) ) AND geoNetwork.city = 'New York' -- choose orders made in New York City

ตัวเลือกการค้นหาย่อยเพิ่มเติม

    SELECT column_name1, -- list the other columns you want to receive column_name2, (SELECT productBrand FROM UNNEST(hits.product)) AS hits_product_productBrand, (SELECT productRevenue FROM UNNEST(hits.product)) AS hits_product_productRevenue, -- list product features (SELECT localProductRevenue FROM UNNEST(hits.product)) AS hits_product_localProductRevenue, (SELECT productPrice FROM UNNEST(hits.product)) AS hits_product_productPrice, FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD`
SELECT column_name1, -- list the other columns you want to receive column_name2, (SELECT productBrand FROM UNNEST(hits.product)) AS hits_product_productBrand, (SELECT productRevenue FROM UNNEST(hits.product)) AS hits_product_productRevenue, -- list product features (SELECT localProductRevenue FROM UNNEST(hits.product)) AS hits_product_localProductRevenue, (SELECT productPrice FROM UNNEST(hits.product)) AS hits_product_productPrice, FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD`

    SELECT column_name1, column_name2, column_name3 FROM ( SELECT table_name.some_column AS column1… FROM table_name )
SELECT column_name1, column_name2, column_name3 FROM ( SELECT table_name.some_column AS column1… FROM table_name )

คำขอไปยังแหล่งภายนอก

ฟังก์ชั่นผู้ใช้เพิ่มเติม (UDF)

เงื่อนไข JOIN เพิ่มเติม

    #standardSQL SELECT * FROM ( SELECT traff.clientId AS clientId, traff.page_path AS pagePath, traff.traffic_source AS startSource, traff.traffic_medium AS startMedium, traff.time AS startTime, aff.evAction AS evAction, aff.evSource AS finishSource, aff.evMedium AS finishMedium, aff.evCampaign AS finishCampaign, aff.time AS finishTime, aff.isTransaction AS isTransaction, aff.pagePath AS link, traff.time-aff.time AS diff FROM ( SELECT fullVisitorID AS clientId, h.page.pagePath AS page_path, trafficSource.source AS traffic_source, trafficSource.medium AS traffic_medium, trafficSource.campaign AS traffic_campaign, date, SAFE_CAST(visitStartTime+h.time/1000 AS INT64) AS time FROM `demoproject.google_analytics_sample.ga_sessions_20190301`, UNNEST (hits) AS h WHERE trafficSource.medium != 'cpa' ) AS traff JOIN ( SELECT total.date date, total.time time, total.clientId AS clientId, total.eventAction AS evAction, total.source AS evSource, total.medium AS evMedium, total.campaign AS evCampaign, tr.eventAction AS isTransaction, total.page_path AS pagePath FROM ( SELECT fullVisitorID AS clientId, h.page.pagePath AS page_path, h.eventInfo.eventAction AS eventAction, trafficSource.source AS source, trafficSource.medium AS medium, trafficSource.campaign AS campaign, date, SAFE_CAST(visitStartTime+h.time/1000 AS INT64) AS time FROM `demoproject.google_analytics_sample.ga_sessions_20190301`, UNNEST(hits) AS h WHERE trafficSource.medium ='cpa' ) AS total LEFT JOIN ( SELECT fullVisitorID AS clientId, date, h.eventInfo.eventAction AS eventAction, h.page.pagePath pagePath, SAFE_CAST(visitStartTime+h.time/1000 AS INT64) AS time FROM `demoproject.google_analytics_sample.ga_sessions_20190301`, UNNEST(hits) AS h WHERE h.eventInfo.eventAction = 'typ_page' AND h.type = 'EVENT' GROUP BY 1, 2, 3, 4, 5 ) AS tr ON total.clientId=tr.clientId AND total.date=tr.date AND tr.time>total.time -- JOIN tables by inequality. Pass the additional WHERE clause that was needed in Legacy SQL WHERE tr.eventAction = 'typ_page' ) AS aff ON traff.clientId = aff.clientId ) WHERE diff> -60 AND diff<0 GROUP BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ORDER BY clientId, finishTime
#standardSQL SELECT * FROM ( SELECT traff.clientId AS clientId, traff.page_path AS pagePath, traff.traffic_source AS startSource, traff.traffic_medium AS startMedium, traff.time AS startTime, aff.evAction AS evAction, aff.evSource AS finishSource, aff.evMedium AS finishMedium, aff.evCampaign AS finishCampaign, aff.time AS finishTime, aff.isTransaction AS isTransaction, aff.pagePath AS link, traff.time-aff.time AS diff FROM ( SELECT fullVisitorID AS clientId, h.page.pagePath AS page_path, trafficSource.source AS traffic_source, trafficSource.medium AS traffic_medium, trafficSource.campaign AS traffic_campaign, date, SAFE_CAST(visitStartTime+h.time/1000 AS INT64) AS time FROM `demoproject.google_analytics_sample.ga_sessions_20190301`, UNNEST (hits) AS h WHERE trafficSource.medium != 'cpa' ) AS traff JOIN ( SELECT total.date date, total.time time, total.clientId AS clientId, total.eventAction AS evAction, total.source AS evSource, total.medium AS evMedium, total.campaign AS evCampaign, tr.eventAction AS isTransaction, total.page_path AS pagePath FROM ( SELECT fullVisitorID AS clientId, h.page.pagePath AS page_path, h.eventInfo.eventAction AS eventAction, trafficSource.source AS source, trafficSource.medium AS medium, trafficSource.campaign AS campaign, date, SAFE_CAST(visitStartTime+h.time/1000 AS INT64) AS time FROM `demoproject.google_analytics_sample.ga_sessions_20190301`, UNNEST(hits) AS h WHERE trafficSource.medium ='cpa' ) AS total LEFT JOIN ( SELECT fullVisitorID AS clientId, date, h.eventInfo.eventAction AS eventAction, h.page.pagePath pagePath, SAFE_CAST(visitStartTime+h.time/1000 AS INT64) AS time FROM `demoproject.google_analytics_sample.ga_sessions_20190301`, UNNEST(hits) AS h WHERE h.eventInfo.eventAction = 'typ_page' AND h.type = 'EVENT' GROUP BY 1, 2, 3, 4, 5 ) AS tr ON total.clientId=tr.clientId AND total.date=tr.date AND tr.time>total.time -- JOIN tables by inequality. Pass the additional WHERE clause that was needed in Legacy SQL WHERE tr.eventAction = 'typ_page' ) AS aff ON traff.clientId = aff.clientId ) WHERE diff> -60 AND diff<0 GROUP BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ORDER BY clientId, finishTime

    #legacySQL SELECT mother_age, COUNT(mother_age) total FROM [bigquery-public-data:samples.natality] WHERE -- such a construction cannot be used in Standard SQL state IN (SELECT state FROM (SELECT state, COUNT(state) total FROM [bigquery-public-data:samples.natality] GROUP BY state ORDER BY total DESC LIMIT 10)) AND mother_age > 50 GROUP BY mother_age ORDER BY mother_age DESC
#legacySQL SELECT mother_age, COUNT(mother_age) total FROM [bigquery-public-data:samples.natality] WHERE -- such a construction cannot be used in Standard SQL state IN (SELECT state FROM (SELECT state, COUNT(state) total FROM [bigquery-public-data:samples.natality] GROUP BY state ORDER BY total DESC LIMIT 10)) AND mother_age > 50 GROUP BY mother_age ORDER BY mother_age DESC

โอกาสผิดพลาดน้อย

คำขอทำงานเร็วขึ้น

แก้ไขตารางได้: แทรกและลบแถว, อัปเดต

    #standardSQL MERGE dataset.Inventory AS T USING dataset.NewArrivals AS S ON T.ProductID = S.ProductID WHEN MATCHED THEN UPDATE SET quantity = T.quantity + S.quantity WHEN NOT MATCHED THEN INSERT (ProductID, quantity) VALUES (ProductID, quantity)
#standardSQL MERGE dataset.Inventory AS T USING dataset.NewArrivals AS S ON T.ProductID = S.ProductID WHEN MATCHED THEN UPDATE SET quantity = T.quantity + S.quantity WHEN NOT MATCHED THEN INSERT (ProductID, quantity) VALUES (ProductID, quantity)

รหัสง่ายต่อการอ่านและแก้ไข

    #standardSQL WITH total_1 AS ( -- the first subquery in which the intermediate indicator will be calculated SELECT id, metric1, SUM(metric2) AS total_sum1 FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD` GROUP BY id, metric ), total_2 AS ( -- the second subquery SELECT id, metric1, SUM(metric2) AS total_sum2 FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD` GROUP BY id, metric1 ), total_3 AS ( -- the third subquery SELECT id, metric, SUM(metric2) AS total_sum3 FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD` GROUP BY id, metric ) SELECT *, ROUND(100*( total_2.total_sum2 - total_3.total_sum3) / total_3.total_sum3, 3) AS difference -- get the difference index: subtract the value of the second subquery from the value of the third; divide by the value of the third FROM total_1 ORDER BY 1, 2
#standardSQL WITH total_1 AS ( -- the first subquery in which the intermediate indicator will be calculated SELECT id, metric1, SUM(metric2) AS total_sum1 FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD` GROUP BY id, metric ), total_2 AS ( -- the second subquery SELECT id, metric1, SUM(metric2) AS total_sum2 FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD` GROUP BY id, metric1 ), total_3 AS ( -- the third subquery SELECT id, metric, SUM(metric2) AS total_sum3 FROM `project_name.dataset_name.owoxbi_sessions_YYYYMMDD` GROUP BY id, metric ) SELECT *, ROUND(100*( total_2.total_sum2 - total_3.total_sum3) / total_3.total_sum3, 3) AS difference -- get the difference index: subtract the value of the second subquery from the value of the third; divide by the value of the third FROM total_1 ORDER BY 1, 2

ความสามารถของ Standard SQL และตัวอย่างกรณีการใช้งาน

1. เลือกข้อมูลสำหรับช่วงเวลา

    #standardSQL SELECT sessionId, FROM `project_name.dataset_name.owoxbi_sessions_*` WHERE _TABLE_SUFFIX BETWEEN �' AND �'
#standardSQL SELECT sessionId, FROM `project_name.dataset_name.owoxbi_sessions_*` WHERE _TABLE_SUFFIX BETWEEN �' AND �'

    #standardSQL SELECT <enumerate field names> FROM `project_name.dataset_name.owoxbi_sessions_*` WHERE _TABLE_SUFFIX BETWEEN FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 3 MONTHS)) AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY))
#standardSQL SELECT <enumerate field names> FROM `project_name.dataset_name.owoxbi_sessions_*` WHERE _TABLE_SUFFIX BETWEEN FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 3 MONTHS)) AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY))

2. ดึงพารามิเตอร์ผู้ใช้และตัวบ่งชี้

    -- Custom Dimensions (in the line below index - the number of the user variable, which is set in the Google Analytics interface; dimension1 is the name of the custom parameter, which you can change as you like. For each subsequent parameter, you need to write the same line: (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customDimensions)) AS dimension1, -- Custom Metrics: the index below is the number of the user metric specified in the Google Analytics interface; metric1 is the name of the metric, which you can change as you like. For each of the following metrics, you need to write the same line: (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customMetrics)) AS metric1
-- Custom Dimensions (in the line below index - the number of the user variable, which is set in the Google Analytics interface; dimension1 is the name of the custom parameter, which you can change as you like. For each subsequent parameter, you need to write the same line: (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customDimensions)) AS dimension1, -- Custom Metrics: the index below is the number of the user metric specified in the Google Analytics interface; metric1 is the name of the metric, which you can change as you like. For each of the following metrics, you need to write the same line: (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customMetrics)) AS metric1

    #standardSQL SELECT <column name1>, <column_name2>, -- list column names (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customDimensions)) AS page_type, (SELECT MAX(IF(index=2, value, NULL)) FROM UNNEST(hits.customDimensions)) AS visitor_type, -- produce the necessary custom dimensions (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customMetrics)) AS metric1 -- produce the necessary custom metrics <column_name3> -- if you need more columns, continue to list FROM `project_name.dataset_name.owoxbi_sessions_20190201`
#standardSQL SELECT <column name1>, <column_name2>, -- list column names (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customDimensions)) AS page_type, (SELECT MAX(IF(index=2, value, NULL)) FROM UNNEST(hits.customDimensions)) AS visitor_type, -- produce the necessary custom dimensions (SELECT MAX(IF(index=1, value, NULL)) FROM UNNEST(hits.customMetrics)) AS metric1 -- produce the necessary custom metrics <column_name3> -- if you need more columns, continue to list FROM `project_name.dataset_name.owoxbi_sessions_20190201`

ในภาพหน้าจอด้านล่าง เราได้เลือกพารามิเตอร์ 1 และ 2 จากข้อมูลสาธิต Google Analytics 360 ใน Google BigQuery และเรียกพารามิเตอร์ดังกล่าวว่า page_type และ client_id พารามิเตอร์แต่ละตัวจะถูกบันทึกในคอลัมน์แยก:

3. คำนวณจำนวนเซสชันตามแหล่งที่มาของการเข้าชม ช่องทาง แคมเปญ เมือง และหมวดหมู่อุปกรณ์

    #standardSQL SELECT <column_name 1>, -- choose any columns COUNT (DISTINCT sessionId) AS total_sessions, -- summarize the session IDs to find the total number of sessions COUNT(DISTINCT sessionId) OVER(PARTITION BY date, geoNetwork.city, session.device.deviceCategory, trafficSource.source, trafficSource.medium, trafficSource.campaign) AS part_sessions -- summarize the number of sessions by campaign, channel, traffic source, city, and device category FROM `project_name.dataset_name.owoxbi_sessions_20190201`
#standardSQL SELECT <column_name 1>, -- choose any columns COUNT (DISTINCT sessionId) AS total_sessions, -- summarize the session IDs to find the total number of sessions COUNT(DISTINCT sessionId) OVER(PARTITION BY date, geoNetwork.city, session.device.deviceCategory, trafficSource.source, trafficSource.medium, trafficSource.campaign) AS part_sessions -- summarize the number of sessions by campaign, channel, traffic source, city, and device category FROM `project_name.dataset_name.owoxbi_sessions_20190201`

4. รวมข้อมูลเดียวกันจากหลายตาราง

    #standardSQL SELECT cid AS client_id, order_time AS transaction_created, order_status AS is_approved, order_number AS transaction_id FROM `project_name.dataset_name.table1_*` WHERE ( _TABLE_SUFFIX BETWEEN �' AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)) ) UNION ALL SELECT userId AS client_id, created_timestamp AS transaction_created, operator_mark AS is_approved, transactionId AS transaction_id FROM `project_name.dataset_name.table1_*` WHERE ( _TABLE_SUFFIX BETWEEN �' AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)) ) ORDER BY transaction_created DESC
#standardSQL SELECT cid AS client_id, order_time AS transaction_created, order_status AS is_approved, order_number AS transaction_id FROM `project_name.dataset_name.table1_*` WHERE ( _TABLE_SUFFIX BETWEEN �' AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)) ) UNION ALL SELECT userId AS client_id, created_timestamp AS transaction_created, operator_mark AS is_approved, transactionId AS transaction_id FROM `project_name.dataset_name.table1_*` WHERE ( _TABLE_SUFFIX BETWEEN �' AND FORMAT_DATE('%Y%m%d',DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)) ) ORDER BY transaction_created DESC

5. สร้างพจนานุกรมของกลุ่มช่องทางจราจร

    #standardSQL SELECT CASE WHEN (REGEXP_CONTAINS (source, 'yandex') AND medium = 'referral' THEN 'Organic Search' WHEN (REGEXP_CONTAINS (source, 'yandex.market')) AND medium = 'referral' THEN 'Referral' WHEN (REGEXP_CONTAINS (source, '^(go.mail.ru|google.com)$') AND medium = 'referral') THEN 'Organic Search' WHEN medium = 'organic' THEN 'Organic Search' WHEN (medium = 'cpc') THEN 'Paid Search' WHEN REGEXP_CONTAINS (medium, '^(sending|email|mail)$') THEN 'Email' WHEN REGEXP_CONTAINS (source, '(mail|email|Mail)') THEN 'Email' WHEN REGEXP_CONTAINS (medium, '^(cpa)$') THEN 'Affiliate' WHEN medium = 'social' THEN 'Social' WHEN source = '(direct)' THEN 'Direct' WHEN REGEXP_CONTAINS (medium, 'banner|cpm') THEN 'Display' ELSE 'Other' END channel_group -- the name of the column in which the channel groups are written FROM `project_name.dataset_name.owoxbi_sessions_20190201`
#standardSQL SELECT CASE WHEN (REGEXP_CONTAINS (source, 'yandex') AND medium = 'referral' THEN 'Organic Search' WHEN (REGEXP_CONTAINS (source, 'yandex.market')) AND medium = 'referral' THEN 'Referral' WHEN (REGEXP_CONTAINS (source, '^(go.mail.ru|google.com)$') AND medium = 'referral') THEN 'Organic Search' WHEN medium = 'organic' THEN 'Organic Search' WHEN (medium = 'cpc') THEN 'Paid Search' WHEN REGEXP_CONTAINS (medium, '^(sending|email|mail)$') THEN 'Email' WHEN REGEXP_CONTAINS (source, '(mail|email|Mail)') THEN 'Email' WHEN REGEXP_CONTAINS (medium, '^(cpa)$') THEN 'Affiliate' WHEN medium = 'social' THEN 'Social' WHEN source = '(direct)' THEN 'Direct' WHEN REGEXP_CONTAINS (medium, 'banner|cpm') THEN 'Display' ELSE 'Other' END channel_group -- the name of the column in which the channel groups are written FROM `project_name.dataset_name.owoxbi_sessions_20190201` 

วิธีเปลี่ยนเป็น Standard SQL

ตัวเลือกที่ 1 สลับในอินเทอร์เฟซ Google BigQuery

ตัวเลือกที่ 2 เขียนคำนำหน้าที่จุดเริ่มต้นของคำขอ

    #standardSQL SELECT weight_pounds, state, year, gestation_weeks FROM `bigquery-public-data.samples.natality` ORDER BY weight_pounds DESC LIMIT 10;
#standardSQL SELECT weight_pounds, state, year, gestation_weeks FROM `bigquery-public-data.samples.natality` ORDER BY weight_pounds DESC LIMIT 10;

    var job = { configuration: { query: { query: 'INSERT INTO MyDataSet.MyFooBarTable (Id, Foo, Date) VALUES (1, \'bar\', current_Date);', useLegacySql: false }
var job = { configuration: { query: { query: 'INSERT INTO MyDataSet.MyFooBarTable (Id, Foo, Date) VALUES (1, \'bar\', current_Date);', useLegacySql: false }

ตัวเลือก 3 การเปลี่ยนไปใช้ Standard SQL สำหรับมุมมอง

ความเข้ากันได้ คุณสมบัติทางไวยากรณ์ ตัวดำเนินการ ฟังก์ชัน

ความเข้ากันได้

ไวยากรณ์ข้อความค้นหา

ผู้ประกอบการ

ฟังก์ชั่น

    #standardSQL SELECT COUNT (DISTINCT sessionId) AS sessions FROM `project_name.dataset_name.owoxbi_sessions_20190301` WHERE device.deviceCategory = 'mobile'
#standardSQL SELECT COUNT (DISTINCT sessionId) AS sessions FROM `project_name.dataset_name.owoxbi_sessions_20190301` WHERE device.deviceCategory = 'mobile'

    #standardSQL SELECT SUM (hits.transaction.transactionRevenue) AS revenue FROM `project_name.dataset_name.owoxbi_sessions_20190301`, UNNEST (hits) AS hits -- unpacking the nested field hits WHERE device.deviceCategory = 'mobile'
#standardSQL SELECT SUM (hits.transaction.transactionRevenue) AS revenue FROM `project_name.dataset_name.owoxbi_sessions_20190301`, UNNEST (hits) AS hits -- unpacking the nested field hits WHERE device.deviceCategory = 'mobile'

    SELECT date, geoNetwork.city, t.device.deviceCategory, trafficSource.source, trafficSource.medium, trafficSource.campaign, COUNT(DISTINCT sessionId) OVER(PARTITION BY date, geoNetwork.city, session.device.deviceCategory, trafficSource.source, trafficSource.medium, trafficSource.campaign) AS segmented_sessions FROM `project_name.dataset_name.owoxbi_sessions_20190301` t
SELECT date, geoNetwork.city, t.device.deviceCategory, trafficSource.source, trafficSource.medium, trafficSource.campaign, COUNT(DISTINCT sessionId) OVER(PARTITION BY date, geoNetwork.city, session.device.deviceCategory, trafficSource.source, trafficSource.medium, trafficSource.campaign) AS segmented_sessions FROM `project_name.dataset_name.owoxbi_sessions_20190301` t

    #standardSQL SELECT SUBSTR(date,0,4) AS year FROM `project_name.dataset_name.owoxbi_sessions_20190301`
#standardSQL SELECT SUBSTR(date,0,4) AS year FROM `project_name.dataset_name.owoxbi_sessions_20190301`

    #standardSQL SELECT CONCAT(SUBSTR(date,0,4),"-",SUBSTR(date,5,2),"-",SUBSTR(date,7,2)) AS date FROM `project_name.dataset_name.owoxbi_sessions_20190301`
#standardSQL SELECT CONCAT(SUBSTR(date,0,4),"-",SUBSTR(date,5,2),"-",SUBSTR(date,7,2)) AS date FROM `project_name.dataset_name.owoxbi_sessions_20190301`

    #standardSQL SELECT CASE WHEN REGEXP_CONTAINS (medium, '^(sending|email|mail)$') THEN 'Email' WHEN REGEXP_CONTAINS (source, '(mail|email|Mail)') THEN 'Email' WHEN REGEXP_CONTAINS (medium, '^(cpa)$') THEN 'Affiliate' ELSE 'Other' END Channel_groups FROM `project_name.dataset_name.owoxbi_sessions_20190301`
#standardSQL SELECT CASE WHEN REGEXP_CONTAINS (medium, '^(sending|email|mail)$') THEN 'Email' WHEN REGEXP_CONTAINS (source, '(mail|email|Mail)') THEN 'Email' WHEN REGEXP_CONTAINS (medium, '^(cpa)$') THEN 'Affiliate' ELSE 'Other' END Channel_groups FROM `project_name.dataset_name.owoxbi_sessions_20190301`

    WHERE REGEXP_CONTAINS(hits.page.pagePath, 'land[123]/|/product-order')
WHERE REGEXP_CONTAINS(hits.page.pagePath, 'land[123]/|/product-order')

    #standardSQL SELECT PARSE_DATE('%Y-%m-%d', date) AS date_new FROM `project_name.dataset_name.owoxbi_sessions_20190301`
#standardSQL SELECT PARSE_DATE('%Y-%m-%d', date) AS date_new FROM `project_name.dataset_name.owoxbi_sessions_20190301`

    #standardSQL SELECT DATE_DIFF( PARSE_DATE('%Y%m%d', date1), PARSE_DATE('%Y%m%d', date2), DAY ) days -- convert the date1 and date2 lines to the DATE format; choose units to show the difference (DAY, WEEK, MONTH, etc.) FROM `project_name.dataset_name.owoxbi_sessions_20190301`
#standardSQL SELECT DATE_DIFF( PARSE_DATE('%Y%m%d', date1), PARSE_DATE('%Y%m%d', date2), DAY ) days -- convert the date1 and date2 lines to the DATE format; choose units to show the difference (DAY, WEEK, MONTH, etc.) FROM `project_name.dataset_name.owoxbi_sessions_20190301`

แบบสอบถาม SQL สำหรับรายงานการตลาด