In this post, we will see how to resolve Fill nulls with values from another column in PySpark Question: I have a dataset I am trying to create a new column that is identical to col_id_b, except that the nulls ...

In this post, we will see how to resolve COALESCE in postgresql conditional displaying seemingly undocumented behavior? Question: I have looked at the COALESCE documentation and it mentions the typical case of using COALESCE to make default/situational parameters, e.g. which ...

Question: So i have two tables I was wondering if anyone could help. So in my main table I have strings that have different formats. Mac address are getting populated as the meter but it they are still linked in ...

Question: So i have two tables I was wondering if anyone could help. So in my main table I have strings that have different formats. Mac address are getting populated as the meter but it they are still linked in ...

Question: I am new to sql server and found a problem in using the FOR XML code. My report builder is using sql server 2014. I have the table like: Field Accessory 1.I AA 1.I BB 1.I CC 1.II AA ...

Question: I am trying to create a column that shows Yes or No based on a set of conditions. If the conditions are met, then ‘Yes’ would apply to every row in the group (even if the conditions are only ...