Translate MSSQL query to MySQL 5.7.23 - mysql

Question

I have a complicated SQL query running on a MSSQL server. I need to change it to make it work also on a MySQL database, however I do not know how to do this. The query is the following and is used to build a complicated Sankey graph in a BI tool
SELECT Id, Delivery_Date, Queue, Step1, Step2, Step3, Step4, Step5, Step6, Step7,
CONVERT(DECIMAL(16,16),RAND((CHECKSUM(NEWID())))*(1 - 0.999999999)+0.999999999) as Counter
FROM
(SELECT t.ID as Id, t.DELIVERY_DATE as Delivery_Date, t.QUEUE as Queue, CONCAT(t.EVENT_NAME,' ', t.EVENT_STATUS, ' ',t .ENDING) as edsda,
'Step' + cast(row_number() over (partition by ID order by ID)
as varchar(10)) ColumnSeq
FROM (SELECT DISTINCT e.[ID] AS ID,
e.[DIALOG_DELIVERY_DATE] AS DELIVERY_DATE,
e.[QUEUE_ID] as QUEUE,
s2.[STEP_NUMBER] AS STEP_NUMBER,
s2.[CURRENT_EVENT] AS EVENT_NAME,
s2.[EVENT_STATUS] as EVENT_STATUS,
e.[DELIVERY_END] AS DELIVERY_END,
CASE WHEN s2.[STEP_NUMBER] = max(s2.[STEP_NUMBER]) over (partition by s2.[ID])
and s2.[EVENT_NUMBER] = min(s2.[EVENT_NUMBER]) over (partition by s2.[ID], s2.[STEP_NUMBER]) THEN e.[DELIVERY_END] ELSE NULL END as ENDING
FROM [dbo].[DELIVERY_STEP_EVENTS] s1,
[dbo].[DELIVERY_STEP_EVENTS] s2,
[dbo].[DELIVERY_EVENTS] e
WHERE s1.[ID] = s2.[ID]
AND e.[ID] = s2.[ID]
AND s1.[EVENT_NAME] = s2.[EVENT_NAME]
AND s1.[STEP_NUMBER] <= s2.[STEP_NUMBER] AS t) AS temp
pivot
(max(edsda)
for ColumnSeq in (Step1,Step2,Step3,Step4, Step5, Step6, Step7)
)
AS Piv
My biggest issue so far has been the RAND((CHECKSUM(NEWID()))) which I do not know how to change to MySQL.
Any help would be greatly appreciated.

Answer 1

My biggest issue so far has been the RAND((CHECKSUM(NEWID()))) which I
do not know how to change to MySQL.
RAND((CHECKSUM(NEWID()))) should behave identical to RAND() function in MySQL. So you could simply replace this:
CONVERT(DECIMAL(16,16),RAND((CHECKSUM(NEWID())))*(1 - 0.999999999)+0.999999999)
With this:
CAST(RAND() * (1 - 0.999999999) + 0.999999999 AS DECIMAL(16, 16))
SQL Server
MySQL