How to write query in power BI Desktop?

Hello,

I am new in powe BI desktop and i want to create a report which would be show data from sql server databas.

I am getting data from SQL database using  below sample Query.

Select * from <TableName> Where <ColName> = <Condition>

So I need to know to how can i write query as above query example in Power BI desktop as MSSQL Server query editor.

Please suggest me by step by step tutorial or link.

Thanks

Rakesh Singh