將 oracle 查詢轉換為 postgresql

Question

我需要將 oracle 查詢轉換為 postgresql

(select PK_, 
        'Statement of Holdings' as NOTIFICATIONNAME_ , 
        CASE NOTIFICATIONSSTATUS_ 
             WHEN 'Processed'              THEN 'Succeeded' 
             WHEN 'Processed With Failure' THEN 'Failed' 
             WHEN 'Impacted'               THEN 'Succeeded'  
             WHEN 'Impact Failed'          THEN 'Failed' 
             WHEN 'Archived'               THEN 'Succeeded' 
             WHEN 'Prepared'               THEN 'Running' 
                                           ELSE 'Planned' 
        END as STATUS , 
        DIRECTION_, 
        UPDATEDATE_ as updatedate_, 
        (to_date('19700101', 'YYYY-MM-DD HH24:MI:SS' ) + (( 1 / 24 / 60 / 60 / 1000) * UPDATEDATE_)) as MODIFICATIONDATE  
from atementOfHoldingsNotification_ 
where (DIRECTION_ is not null) and (updatedate_ > 1609462800000) ) 

union all 

(select PK_, 
        'Statement of Transactions' as NOTIFICATIONNAME_ , 
        CASE NOTIFICATIONSSTATUS_  
             WHEN 'Processed'              THEN 'Succeeded' 
             WHEN 'Processed With Failure' THEN 'Failed' 
             WHEN 'Impacted'               THEN 'Succeeded'  
             WHEN 'Impact Failed'          THEN 'Failed' 
             WHEN 'Archived'               THEN 'Succeeded' 
             WHEN 'Prepared'               THEN 'Running' 
                                           ELSE 'Planned' 
        END as STATUS , 
        DIRECTION_, 
        UPDATEDATE_ as updatedate_, 
        (to_date('19700101', 'YYYY-MM-DD HH24:MI:SS' ) + (( 1 / 24 / 60 / 60 / 1000) * UPDATEDATE_)) as MODIFICATIONDATE  
from entOfTransactionsNofitication_ 
where (DIRECTION_ is not null) and (updatedate_ > 1609462800000)) 

union all 

(select PK_, 
        'Statement of Pending Transactions' as NOTIFICATIONNAME_ , 
        CASE NOTIFICATIONSSTATUS_ 
             WHEN 'Processed'              THEN 'Succeeded' 
             WHEN 'Processed With Failure' THEN 'Failed' 
             WHEN 'Impacted'               THEN 'Succeeded'  
             WHEN 'Impact Failed'          THEN 'Failed' 
             WHEN 'Archived'               THEN 'Succeeded' 
             WHEN 'Prepared'               THEN 'Running'
                                           ELSE 'Planned' 
        END as STATUS , 
        DIRECTION_, 
        UPDATEDATE_ as updatedate_, 

我在執行時遇到了這個問題：

錯誤：運算符不存在：日期 + 數字第 4 行：..._, (to_date('19700101', 'YYYY-MM-DD HH24:MI:SS' ) + (( 1 / 2... ^ 提示：沒有運算符匹配給定的名稱和參數類型。您可能需要添加顯式類型轉換。SQL state：42883 字符：586

Answer 1

代替：

to_date('19700101', 'YYYY-MM-DD HH24:MI:SS' ) + (( 1 / 24 / 60 / 60 / 1000) * UPDATEDATE_

您可以使用TIMESTAMP和INTERVAL文字：

TIMESTAMP '1970-01-01 00:00:00.000 UTC' + UPDATEDATE_ * INTERVAL '0.001' SECOND

這適用於 Oracle fiddle和 PostgreSQL fiddle 。