#+TITLE: Tangling process ignores LOB?
#+DATE: 2010-12-07
#+LANGUAGE: en_US
#+BABEL: :cmdline -S server -U user -P password -d database -n -w 700 :results
output :exports both
* Abstract
References to named code blocks located in a LOB file seem to be ignored by
the tangling process.
* Example
** Common code
These 2 SQL code blocks are, and will be, reused all over the place:
#+srcname: set-count-off
#+begin_src sql :eval never
-- no longer display the count message
SET NOCOUNT ON
#+end_src
#+srcname: defvar-now
#+begin_src sql :eval never
DECLARE @now smalldatetime
SET @now = CONVERT(smalldatetime,
CAST(YEAR(GETDATE()) AS char(4)) + '-' +
CAST(MONTH(GETDATE()) AS char(2)) + '-' +
CAST(DAY(GETDATE()) AS char(2)) + ' ' +
CAST(DATEPART(hh, GETDATE()) AS char(2)) + ':' +
CAST(DATEPART(mi, GETDATE()) AS char(2)) + ':' +
'00',
120) -- ODBC canonical
#+end_src
** Specific code
For example, I use them here:
#+begin_src sql :engine msosql :noweb yes
<<set-count-off>>
<<defvar-now>>
SELECT TOP 5 @now AS now
FROM table
#+end_src
#+results:
| now |
| ------------------- |
| 2010-12-07 15:14:00 |
| 2010-12-07 15:14:00 |
| 2010-12-07 15:14:00 |
| 2010-12-07 15:14:00 |
| 2010-12-07 15:14:00 |
| |
And it works (see the /results/ table). But...
* Problem
If I put the *common code blocks* into some LOB file (i.e., I move them out of
this file) and ingest it, then the specific code does not properly run
anymore.
In other words, it seems that the tangle process does not take into account
the code blocks located in the LOB.
Best regards,
Seb
--
Sébastien Vauban
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