Re: SQL View to PostgreSQL View

From: Rehan Saleem [mailto:pk_rehan(at)yahoo(dot)com]
Sent: Sunday, February 26, 2012 1:50 PM
To: pgsql-sql(at)postgresql(dot)org
Subject: SQL View to PostgreSQL View

Hi ,
I am trying to convert sql view to postgresql view but i am getting the following error i dont know how to handle dbo. in postgresql and when i remove dbo. from table name then view got created but it does not show any data, while this is working perfectly fine in sql, here is my code and error details 

CREATE OR REPLACE VIEW vwkbcomparesites as
select a.kbid kb_a, b.kbid kb_b, a.chr chr_a, a.start start_a, a."end" end_a, (a."end" - a.start)+1 tagsize_a, 
b.chr chr_b, b.start start_b, b."end" end_b, (b."end" - b.start)+1 tagsize_b,
    abs((a."end" + a.start)/2 - (b."end" + b.start)/2) centredistance,
case 
when a."end" <= b."end" and a.start >= b.start  
then (a."end" - a.start) 
when b."end" <= a."end" and b.start >= a.start   
then (b."end" - b.start) 
when a."end" <= b."end" and a.start <= b.start    
then (a."end" - b.start) 
when a."end" >= b."end" and a.start >= b.start
then (b."end" - a.start)  
end bpoverlap
from  dbo.kbsites a inner join dbo.kbsites b on a.chr=b.chr
inner join dbo.kbdetails kbd on a.kbid=kbd.kbid
where kbd.active='1' ;

i am getting this error , how can i fix this.

ERROR:  schema "dbo" does not exist
LINE 15:  from  dbo.kbsites a inner join dbo.kbsites b on a.chr=b.chr
                ^

********** Error **********

ERROR: schema "dbo" does not exist
SQL state: 3F000
Character: 761

>>

First, I assume you are converting your view from SQL Server, not from SQL.
SQL Server is RDBMS, while SQL is a language being used by multiple RDBMSs including PostgreSQL.

Second, there is no "standard" dbo ("database owner") role in Postgres.
Before converting from one RDBMS to another you need to do some basic (at least) documentation reading on "target" RDBMS (in this case - PostgreSQL).
Otherwise, you will stumble on every step.

Regards,
Igor Neyman