VbzCart/docs/queries/qryCtg src: Difference between revisions
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imported>Woozle (extracted from catalog building page) |
imported>Woozle (2008-03-15) |
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* '''Used by''': [[VbzCart catalog building|catalog building process]] (details to be documented) | * '''Used by''': [[VbzCart catalog building|catalog building process]] (details to be documented) | ||
* '''History''': | * '''History''': | ||
** '''2008-03-15''' Building sequence completely rewritten, so presumably this query was created then | |||
** '''2008-04-02''' convert blanks to nulls in b.ItOpt_Descr_part | ** '''2008-04-02''' convert blanks to nulls in b.ItOpt_Descr_part | ||
* '''Fields''': | * '''Fields''': | ||
Revision as of 22:19, 3 May 2009
About
- Requires: Template:Vbzcart/query, Template:Vbzcart/query
- Used by: catalog building process (details to be documented)
- History:
- 2008-03-15 Building sequence completely rewritten, so presumably this query was created then
- 2008-04-02 convert blanks to nulls in b.ItOpt_Descr_part
- Fields:
- b.ItOpt_Descr_part apparently often comes up as "" rather than NULL, so we have to convert blanks to nulls before testing for null.
SQL
<section begin=sql /><mysql>CREATE OR REPLACE VIEW qryCtg_src AS SELECT
b.*,
CONCAT_WS('-',b.ID_Title,b.CatSfx) AS IDS_Item,
CONCAT_WS('-',t.CatNum,b.CatSfx) AS CatNum,
IFNULL(NULLIF(b.ItOpt_Descr_part,""),b.NameSng) AS ItOpt_Descr
FROM qryCtg_src_sub AS b LEFT JOIN qryCat_Titles AS t ON b.ID_Title=t.ID;</mysql> <section end=sql />