Rishit Mishra

Rishit Mishra is a Manager in the PwC - Digital Risk Solutions practice.

For over 9+ years Rishit has been leading, delivering and managing a diverse range of multinational SAP security and GRC Access Control projects for Fortune 100 clients across various industries. Rishit’s project experiences include: SAP Security Design/Redesign, SAP GRC-AC implementations, SAP Security/GRC Assessments & SAP Security Remediation. Rishit’s experience includes catering to a wide array of clients in the Energy, Industrial Products and Consumer Products industries. He has consistent results of delivering critical project deliverables within a stipulated time span. He gives special attention to client management with focus on customer service and client values.

Rishit has worked on multiple SAP platforms which include SAP R/3 4.6C, v4.7, SAP ERP Central Component Release 6.0, SAP BI 7.0, Virsa Compliance Calibrator v4.0, Virsa Firefighter tool v4.0, Governance Risk Compliance v5.3 , Governance Risk Compliance v10 catering to a wide array of clients in the Oil & Gas, Pharmaceuticals and Manufacturing industry.

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Question of the Day

Using Outer Joins

I have this data in a SQL Server 2019 database: 

Customer table
CustomerID CustomerName
1          Steve
2          Andy
3          Brian
4          Allen
5          Devin
6          Sally

OrderHeader table
OrderID CustomerID OrderDate
1       1          2024-02-01
2       1          2024-03-01
3       3          2024-04-01
4       4          2024-05-01
6       4          2024-05-01
7       3          2024-06-07
8       2          2024-04-07
I want a list of all customers and their order counts for a period of time, including zero orders. If I run this query, how many rows are returned? 
SELECT 
  c.CustomerName, COUNT(oh.OrderID)
 FROM dbo.Customer AS c
LEFT JOIN dbo.OrderHeader AS oh ON oh.CustomerID = c.CustomerID
WHERE oh.Orderdate > '2024/04/01'
GROUP BY c.CustomerName

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