SQL-query order by multiple columns having null values -


I found a table like this (note: there are more columns in the real table):

 < Code> alley | Zip ----------- 'b' | 0 'A' 0 'c' | Null 'f' | 1 null | 0 null | Null   

I would like to do a query like this:

  SELECT * from place ORDER by road, zip   

The result of this query is:

  road | ZIP ----------- 'a' | 0 'b' | 0 'c' | Null 'f' | 1 null | 0 Now the question is how should this output be produced (this is possible?):  
  alley | ZIP - ---------- 'a' | 0 'b' | 0 'c' | Null null | 0 'f' | 1 null | Null   

If the value is zero of one column, it should be ignored / interpreted as a wildcard. I am using PostgreSQL 9.2.

Thank you for your help.

No, it does not seem possible that you can not create a copyable rule for that.

Your first example will also be valid if you behave as a wild card in futile behavior.

  Road | ZIP --- -------- 'A' | 0 'b' | 0 'C' | Empty tap 0 tap Tap 'F' 1   

will also be there.

Comments

Popular posts from this blog

ios - Adding an SKSpriteNode to SKScene from a child SKSpriteNode -

Matlab transpose a table vector -

c# - Textbox not clickable but editable -