通過Cloud Datalab加入Google BigQuery

我試圖在Google BigQuery中對來自兩個不同表格（其中一個是視圖）的兩列進行聯接。我曾嘗試多種方式，但最一貫收到此錯誤：通過Cloud Datalab加入Google BigQuery

invalidQuery: 2.1 - 0.0: JOIN cannot be applied directly to a table union or to a table wildcard function. Consider wrapping the table union or table wildcard function in a subquery (e.g., SELECT *).

這裏是我的SQL（傳統）查詢：

SELECT 
    blp_today.beta_key, 
    blp_today.px_last, 
    blp_today.eqy_weighted_avg_px, 
    blp_today.created_date, 
    blp_today.security_ticker, 
    ciq_company_stg.ticker, 
    ciq_company_stg.ciq 
FROM 
    [fcm-dw:acquisition_bloomberg.blp_today], 
    [fcm-dw:acquisition_ciq] 
JOIN 
    blp_today.security_ticker AS ticker 
ON 
    blp_today.security_ticker = ciq_company_stg.ticker 
LIMIT 1000

任何幫助將非常感激。

來源

2017-02-19 Dave Chappelle

我認爲你要麼想是這樣的：

SELECT * FROM(SELECT 
    beta_key, 
    px_last, 
    eqy_weighted_avg_px, 
    created_date, 
    security_ticker, 
FROM 
    [fcm-dw:acquisition_bloomberg.blp_today], 
    [fcm-dw:acquisition_ciq]) as a 
JOIN 
    blp_today.security_ticker AS ticker 
ON 
    a.security_ticker = ciq_company_stg.ticker 
LIMIT 1000

//編輯：我剛纔那種錯過了，你是（後您的加入語句）加入表實際上並不似乎是一個表。你是否想加入或結合這兩個表：[fcm-dw：acquisition_bloomberg.blp_today]和[fcm-dw：acquisition_ciq]？後者甚至是一張桌子？您的代碼似乎表明存在另一個名爲：[fcm-dw：acquisition_ciq.ciq_company_stg]的表？

來源

2017-02-20 02:28:37

後者實際上是在同一個表的視圖，這有助於雖然，謝謝。 –

首套你的工會成子選擇再加入結果

select ... 
FROM 
(select * from 
    [fcm-dw:acquisition_bloomberg.blp_today], 
    [fcm-dw:acquisition_ciq]) t 
JOIN 
    blp_today.security_ticker AS ticker

來源

2017-02-20 10:04:31 Pentium10

通過Cloud Datalab加入Google BigQuery

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