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SQL returning two rows matching different criteria into separate columns

Time:09-30

I'm having trouble adjusting an SQL query where I need to take two rows that match similar criteria and give them each a column. Here is an example of the table I am querying:

SEQNO PICKSLIPNO EVENT_TYPE DATETIME SUBJECT
20000 10045 H 2021-09-30 8:21 Picking Slip Created
20001 10045 P 2021-09-30 8:22
20002 10045 I 2021-09-30 8:25
20003 10045 H 2021-09-30 11:22 Order delivered

And the result I would like:

PICKSLIPNO PickingDate DeliveryDate
10045 2021-09-30 8:21 2021-09-30 11:22
10052 2021-09-30 8:25 2021-09-30 10:32
10122 2021-09-30 7:32 2021-09-30 13:54

I am trying query and return both the datetimes of picking slip creation and order delivery in two separate columns on the same row for each pickingslipno between a certain date range. I've tried the following code which worked perfectly when I only query one PickslipNo. However, as soon as I try querying a wider range I get an error that my subqueries are returning multiple results.

SELECT (
    SELECT DATETIME
    FROM SALESORDHIST
    WHERE SUBJECT LIKE 'Picking Slip Created'
    AND DATETIME >= GETDATE()-5
    AND DATETIME <= GETDATE()
) AS PickingDate,
(
    SELECT DATETIME
    FROM SALESORDHIST
    WHERE SUBJECT LIKE 'Order delivered'
    AND DATETIME >= GETDATE()-5
    AND DATETIME <= GETDATE()
) AS DeliveryDate
FROM SALESORDHIST 

Apologies if this doesn't make sense and I appreciate you taking the time to read this/help out.

CodePudding user response:

First select the data for the order slip create and then left join to the delivery -- like this:

SELECT SLIP.PICKSLIPNO , SLIP.DATETIME AS PickingDate, DEL.DATETIME as DeliveryDate
FROM SALESORDHIST SLIP
LEFT JOIN SALESORDHIST DEL ON SLIP.PICKSLIPNO = DEL.PICKSLIPNO 
                           AND DEL.SUBJECT LIKE 'Order delivered'
WHERE SLIP.SUBJECT LIKE 'Picking Slip Created'
 
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