VbzCart/docs/queries/qryCtg src

About

• Requires: Template:Vbzcart/query, Template:Vbzcart/query
• Used by: catalog building process (details to be documented)
• History:
  • 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 />