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[英]How can i insert value in timestamp datatype column in SQL using java or JSP
[英]How can we change the datatype of a column using standard SQL in bigquery?
我知道這可能很愚蠢,但沒有一個舊案例適合我。 也不適用於“CAST”方法。
我正在嘗試運行以下查詢,但出現以下錯誤:
SELECT
P.date,
P.campaign_id,
P.ad_name,
P.impressions,
P.clicks,
P.spend,
P.NOM_ENSEMBLE,
P.CODE_ENSEMBLE_IMMO,
F.FREQUENTATION_CENTRE
FROM
`project.digital.fb_data` AS P
JOIN
`project.digital.freq_data` AS F
ON
(P.date = F.JOUR AND P.CODE_ENSEMBLE_IMMO=F.CODE_ENSEMBLE_IMMO)
錯誤:
Error: No matching signature for operator = for argument types: DATE, STRING. Supported signatures: ANY = ANY at [16:4]
下面是 BigQuery 標准 SQL
第一個查詢是重現/演示您的問題的簡化查詢
#standardSQL
WITH `project.digital.fb_data` AS (
SELECT DATE '2019-02-15' `date`, 1 CODE_ENSEMBLE_IMMO
), `project.digital.freq_data` AS (
SELECT '02-15-2019' JOUR, 1 CODE_ENSEMBLE_IMMO, 'zzz' FREQUENTATION_CENTRE
)
SELECT
P.date,
P.CODE_ENSEMBLE_IMMO,
F.FREQUENTATION_CENTRE
FROM `project.digital.fb_data` AS P
JOIN `project.digital.freq_data` AS F
ON P.date = F.JOUR
AND P.CODE_ENSEMBLE_IMMO=F.CODE_ENSEMBLE_IMMO
結果
Error: No matching signature for operator = for argument types: DATE, STRING. Supported signatures: ANY = ANY at [13:4]
下面的查詢演示了如何解決上述問題
#standardSQL
WITH `project.digital.fb_data` AS (
SELECT DATE '2019-02-15' `date`, 1 CODE_ENSEMBLE_IMMO
), `project.digital.freq_data` AS (
SELECT '02-15-2019' JOUR, 1 CODE_ENSEMBLE_IMMO, 'zzz' FREQUENTATION_CENTRE
)
SELECT
P.date,
P.CODE_ENSEMBLE_IMMO,
F.FREQUENTATION_CENTRE
FROM `project.digital.fb_data` AS P
JOIN `project.digital.freq_data` AS F
ON P.date = PARSE_DATE('%m-%d-%Y', F.JOUR)
AND P.CODE_ENSEMBLE_IMMO=F.CODE_ENSEMBLE_IMMO
結果
Row date CODE_ENSEMBLE_IMMO FREQUENTATION_CENTRE
1 2019-02-15 1 zzz
注意:你可以讓你的F.JOUR
格式與上面的例子不同 - 所以檢查PARSE_DATE函數以了解如何處理其他支持的格式
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