I had hoped something as simple as:
  Jobdtl.jobdtl_cmd
                          .replace("\t", "")
                          .replace("\n", "")
                          .replace("\r", "")
                          .label('command'), 
Can you cast InstrumentedAttribute to a string and back?
As it stands you get:
AttributeError: Neither 'InstrumentedAttribute' object nor 'Comparator' 
object associated with Jobdtl.jobdtl_cmd has an attribute 'replace'

On Friday, 9 February 2018 19:18:55 UTC, Jeremy Flowers wrote:
>
> I'm aware with Oracle I could probably do something like this:
> REPLACE(REPLACE(REPLACE(o.jobdtl_cmd, CHR(9), ''), CHR(10), ''), CHR(13), 
> '') as COMMAND
>
> Is there a database agnostic way of doing this in SQLAlchemy?
>
> Would  it be possible to provide a list of numbers, like 9,10,13, that 
> would get iterated through to strip out the character and replace with an 
> empty string?
>
> I was looking under func, thinking it maybe something you could do there...
>
> Perhaps via Register function?
>
> http://docs.sqlalchemy.org/en/latest/core/functions.html#sqlalchemy.sql.functions.register_function
>
> Does anyone have an example of a register function?
>
> Many thanks again.
>

-- 
SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper

http://www.sqlalchemy.org/

To post example code, please provide an MCVE: Minimal, Complete, and Verifiable 
Example.  See  http://stackoverflow.com/help/mcve for a full description.
--- 
You received this message because you are subscribed to the Google Groups 
"sqlalchemy" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to sqlalchemy+unsubscr...@googlegroups.com.
To post to this group, send email to sqlalchemy@googlegroups.com.
Visit this group at https://groups.google.com/group/sqlalchemy.
For more options, visit https://groups.google.com/d/optout.

Reply via email to