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How to perform count on a particular column value with multiple match condition with aggregation. How to count EmpId in DeptId 1 and TimeCode 22

  • Empid DeptId TimeCode

  • 1 1 22

  • 2 1 25

  • 3 1 22

  • 4 2 22

  • 5 1 21

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  • Can you please elaborate on your problem with an example? Commented Jul 9, 2020 at 16:43
  • @DeepakPatankar : Already elborated Commented Jul 9, 2020 at 16:52

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#Example in mongo to count number of employees in perticular department.

db.getCollection("Employee").aggregate(
    [
        {
            "$match" : {
                "DeptId " : 1
            }
        },
        {
            "$match" : {
                "TimeCode" : 22
            }
        },
        {
            "$count" : "EmployeeId"
        }
    ],
    {
        "allowDiskUse" : false
    }
);
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