PowerSQL By Prashanth Jayaram

Blog Post

MongoDB – Insert,Update,Upsert and Delete Examples – CRUD

In MongoDB we have to use either insert() or save() method to add the document to a collection

Insert Single document
> db.employee.insert( 
    {"employee_id":1101, 
    "name":"Prashanth", 
    "sal":90000, 
    "dob": newDate(1983,2,3,5,20), 
    "department": 
        [ 
            'DB Amdin','DB Developer' 
        ], 
    "Location":"New York"});
Insert Multiple...

2016-04-20

739 reads

Blog Post

MongoDB -Get Total datasize of all DB’s

var sum = 0; db.getMongo().getDBs()[“databases”].forEach(function(x) { sum += db.getMongo().getDB(x.name).stats().dataSize }); print(sum );

OR
db = db.getSiblingDB(“admin”);
dbs = db.runCommand({ “listDatabases”: 1 }).databases;
var sum1=0;dbs.forEach(function(database) { sum1+=db.getMongo().getDB(database.name).stats().dataSize }); print(sum1);

2016-04-11

445 reads

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Question of the Day

Getting the Average

I have this data in the dbo.Commission table in a SQL Server 2022 database.

salesperson commission
Brian       12
Brian       16
Andy        7
Andy        14
Andy        21
Steve       20
Steve       NULL
All the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
     , AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
 FROM commission
 GROUP BY SalesPerson
GO
What average commission is calculated for Steve?

See possible answers