query refresh clarification

[thanksforhelp22]

Hi,

in power query editor when table is load and then below steps are applied

* Remove columns

* filter data based column values

In this case will the entire table will be loaded and then the steps will be applied.

Or it Is better to add the SQL in Source steps in advanced options itself. thanks

[vanessafvg]

from a performance perspective if you are pulling the data from sql, rather just write a sql statement that will pull the required columns in the advanced section yes,  this way you also know that it using the compute of the sql server (or whichever database you are using) rather than power query which can be slower.

[thanksforhelp22]

thanks  vanessafvg, so the entire table data will be loaded before applying the steps. 

[vanessafvg]

correct