Difference between revisions of "VbzCart/queries"

Revision as of 16:19, 27 December 2008

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Overview

What MS Access calls "queries" are called "views" in MySQL, i.e. they pull data from existing tables and are themselves usable as data sources in much the same way that tables are (and in which result sets from functions are not).

Some common prefixes:

qryCbx_: queries used for filling comboboxes. The unique ID will always be the first field, and the text to display will always be the second field; additional fields may be provided for use in further qryCbx_ queries which show a subset of the results.
qryCat_: queries which build catalog numbers or information by joining multiple tables. (In Access, the convention was qryCatNum_.)

Inactive

/deprecated: queries we're trying to get rid of, once we're sure nothing uses them
/discarded: queries apparently no longer in use

Catalog

Catalog Items

/qryCat_Items
/qryCbx_Items_data
- /qryCbx_Items
- /qryCbx_Items_active
- /qryCbx_Items_for_sale
- /qryCbx_Items_opt: abbreviated version for contexts where Title is already known
/qryItems_prices: what uses this?

Catalog Sources

Orders

Customers

/qryCustAddrs

Packages

Restocks

all restock requests:
active restocks:
- /qryRstks_active: not terminated = !(closed, orphaned or killed)
- /qryRstkItms_active
- /qryRstks_unsent: created but not ordered yet
- /qryRstkItms_unsent
- /qryRstkItms_unsent_for_order
- /qryRstkItms_expected

terminology

Active = not "terminated", i.e. not "closed", "killed", or "orphaned" (may or may not be "expected" yet)
Closed = received from supplier, nothing remaining on backorder
Expected = placed with supplier, but not yet received
Killed = canceled with supplier after having been placed
Orphaned = we don't have records that anything was received, but nothing further is expected (usually old data)
Terminated = closed, orphaned, or killed
Unsent = created but not yet placed with supplier, i.e. not "expected"

Phases:

Time →
Created	(Unsent)	Ordered	(Expected)	Closed, Killed, or Orphaned
--(Active)--				--(Terminated)--

Stock

new queries

/qryStk_lines_remaining_forSale
/qryStkItms_for_sale
/qryStkItms_for_sale_wItem_data
/qryStk_lines_Title_info
/qryStock_forOpenOrders
/qryStock_byOpt_andType
/qryStock_by_Opt_Type
/qryStock_by_Supp_Type_Opt - unused (and should be Supp_Opt_Type)
/qryStock_Titles_most_recent
/qryStock_containers - generates codes for

REDIRECT Template:l/vc/table

old queries

This was the first batch of queries I created, before I had decided to go with the qry prefix as in Access.

Caching

Caching should only be used for catalog display.

v_data_flow

<mysql> CREATE OR REPLACE VIEW v_data_flow AS

   SELECT
     df.ID_Srce,
     df.ID_Dest,
     df.ID_Proc,
     dfx.doesClear
   FROM data_flow AS df LEFT JOIN data_procs AS dfx ON df.ID_Proc=dfx.ID
   ORDER BY dfx.doesClear;</mysql>

@@ Line 108: / Line 108: @@
 * [[/qryStock_by_Supp_Type_Opt]] - unused (and should be Supp_Opt_Type)
 * [[/qryStock_Titles_most_recent]]
+* [[/qryStock_containers]] - generates codes for {{vbzcart/table|stk_history}}
 ====old queries====
 This was the first batch of queries I created, before I had decided to go with the qry prefix as in Access.