VbzCart/docs/coding/integrity checks

Table-specific checks:

• Template:L/vc/table

Cross-table checks

Package lines and order lines which don't agree about what ID_Item they're tracking: <mysql>SELECT

   *

FROM

   ord_pkg_lines AS pl
       JOIN
   ord_lines AS ol ON pl.ID_OrdLine = ol.ID

WHERE

   ol.ID_Item != pl.ID_Item</mysql>