将 oracle 查询转换为 postgresql

Question

I need to convert oracle query to 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_, 

I got this issue when i executed:

ERROR: operator does not exist: date + numeric LINE 4: ..._, (to_date('19700101', 'YYYY-MM-DD HH24:MI:SS' ) + (( 1 / 2... ^ HINT: No operator matches the given name and argument types. You might need to add explicit type casts. SQL state: 42883 Character: 586

Answer 1

Instead of:

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

You can use TIMESTAMP and INTERVAL literals:

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

Which works in both Oracle fiddle and PostgreSQL fiddle .