VbzCart/queries

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VbzCart: data views

Overview

"Views" in MySQL are like SELECT "queries" in MS Access, 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).

Views

"Views" in MySQL are essentially identical to stored queries in MS Access.

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_.)

qryCat_Depts

<mysql>CREATE OR REPLACE VIEW qryCat_Depts AS

 SELECT
   d.ID,
   d.Name,
   d.Sort,
   d.CatKey,
   d.ID_Supplier,
   CONCAT_WS('-',s.CatKey,d.CatKey) AS CatNum
 FROM depts AS d LEFT JOIN suppliers AS s ON d.ID_Supplier=s.ID;</mysql>

Titles

These will later reference cat_titles instead of titles, when that table is fully migrated.

v_titles

<mysql>CREATE OR REPLACE VIEW v_titles AS

 SELECT
   t.*,
   tx.ID_Supp,
   tx.CatNum,
   tx.CatWeb,
   tx.cntForSale,
   tx.cntInPrint,
   tx.qtyInStock
     FROM titles AS t LEFT JOIN _titles AS tx on t.ID=tx.ID;</mysql>

qryCat_Titles

<mysql>CREATE OR REPLACE VIEW qryCat_Titles AS

 SELECT
   t.ID,
   t.Name,
   CONCAT_WS('-',d.CatNum,t.CatKey) AS CatNum,
   d.ID_Supplier,
   t.ID_Dept,
   t.DateAdded,
   t.RstkMin AS QtyMin_Rstk,
   t.Notes,
   t.Supplier_CatNum AS Supp_CatNum
 FROM titles AS t LEFT JOIN qryCat_Depts AS d ON t.ID_Dept=d.ID;</mysql>

Items

v_items

<mysql>CREATE OR REPLACE VIEW `v_items` AS

 SELECT
   i.ID,
   i.CatNum,
   i.isForSale,
   i.isMaster,
   i.qtyInStock,
   i.isInPrint,
   i.isCloseOut,
   i.isPulled,
   i.isDumped,
   i.ID_Title,
   i.ID_ItTyp,
   i.ID_ItOpt,
   i.ItOpt_Descr,
   i.ID_ShipCost,
   i.PriceBuy,
   i.PriceSell,
   i.PriceList,
   i.Supp_CatNum,
   io.Sort AS OptSort
 FROM (
   `cat_items` AS `i` LEFT JOIN 
   `cat_ioptns` AS `io` ON
     ((`i`.`ID_ItOpt` = `io`.`ID`)))</mysql>

Used by clsItemsExt

qryCat_Items

<mysql>CREATE OR REPLACE VIEW qryCat_Items AS SELECT

 i.ID,
 i.ID_Title,
 (t.ID IS NOT NULL) AS TitleExists,
 t.ID_Supplier,
 i.PriceSell,
 i.PriceList,
 i.PriceBuy,
 i.CatNum,
 t.CatNum AS Title_CatNum,
 t.Name AS Title_Name,
 i.ID_ItTyp,
 i.ID_ItOpt,
 i.ItOpt_Descr,
 i.ItOpt_Sort,
 CONCAT(t.Name, IF
     (i.ItOpt_Descr IS NULL,,CONCAT(
       ' (',i.ItOpt_Descr,')'
       )
     )
   ) AS Descr,
 i.Supp_CatNum,
 i.isForSale,
 i.isPulled,
 i.QtyMin_Stk,
 t.QtyMin_Rstk AS QtyMin_Rstk_Title

FROM cat_items AS i LEFT JOIN qryCat_Titles AS t on i.ID_Title=t.ID ORDER BY t.ID IS NOT NULL, i.CatNum, i.ItOpt_Sort;</mysql>

• MySQL note: Functions (or CONCAT, anyway) apparently do not like being separated from their opening parenthesis; it seems to resolve the function name as a field name, and (generally) will report that there is no such field.

qryCbx_Items

<mysql>CREATE OR REPLACE VIEW qryCbx_Items AS SELECT ID, Descr FROM qryCbx_Items_data;

CREATE OR REPLACE VIEW qryCbx_Items_active AS SELECT ID, Descr FROM qryCbx_Items_data WHERE NOT isPulled;

CREATE OR REPLACE VIEW qryCbx_Items_data AS SELECT

 i.ID,
 CAST(
   CONCAT(
     if(i.isPulled,
       '*P* ',
       
     ),
     if(i.CatNum IS NULL,
       CONCAT('#',i.ID,' (no cat#)')
       ,i.CatNum),
     if(i.Supp_CatNum IS NULL,
       ,
       CONCAT(' [',i.Supp_CatNum,']')
     ),
     if(i.isForSale,,' *n/a*'),
     ' ',
     if(i.Descr IS NULL,'no description',i.Descr)
   ) AS CHAR
 ) AS Descr,
 i.isPulled,
 i.isForSale,
 i.ID_Title,
 i.CatNum,
 i.Supp_CatNum,
 i.PriceSell,
 i.QtyMin_Stk

FROM qryCat_Items AS i ORDER BY NOT i.isPulled, i.isForSale, i.CatNum;</mysql>

• Future refinement: no need to display CatNum, Supp_CatNum, i.Descr if i.isPulled
• Added more fields for forms which want to display Descr from this query but also need those fields (e.g. Restock Items form):
  • ID_Title, CatNum, PriceSell, QtyMin_Stk
• Added isPulled so qryCbx_Items_active can display only non-pulled items (less bandwidth = faster loading)

An abbreviated version for contexts where the Title is already known <mysql>CREATE OR REPLACE VIEW qryCbx_Items_opt AS SELECT

 i.ID,
 CAST(
   CONCAT(
     if(i.isPulled,
       '*P* ',
       
     ),
     if(i.ID_ItOpt IS NULL,
       CONCAT('#',i.ID,' (no opt)')
       ,io.CatKey),
     if(i.isForSale,,' *n/a*')
   ) AS CHAR
 ) AS Descr,

 i.CatNum

FROM cat_items AS i LEFT JOIN cat_ioptns AS io ON i.ID_ItOpt=io.ID;</mysql>

Orders

qryCbx_Orders

<mysql>CREATE OR REPLACE VIEW qryCbx_Orders AS SELECT

 ID,
 CONCAT_WS(' due ',CAST(Number AS CHAR),DATE_FORMAT(WhenNeeded,'%Y-%m-%d')) AS Descr,
 ID_Pull,
 WhenNeeded

FROM core_orders ORDER BY CONCAT(IFNULL(SortPfx,),Number) DESC;</mysql>

• ID_Pull and WhenNeeded are needed for #qryStock_forOpenOrders

qryOrderLines_notPkgd

Active order lines which have yet to be (completely) put into a package <mysql>CREATE OR REPLACE VIEW qryOrderLines_notPkgd AS SELECT

 oi.ID,
 oi.ID_Order,
 oi.ID_Item,
 oi.CatNum,
 oi.Descr,
 oi.QtyOrd,
 oi.Price,
 oi.QtyOrd
   -SUM(
     IFNULL(pi.QtyShipped,0)
     +IFNULL(pi.QtyNotAvail,0)
     +IFNULL(pi.QtyKilled,0)
   ) AS QtyOpen,
 SUM(IFNULL(pi.QtyShipped,0)) AS QtyShipped,
 SUM(IFNULL(pi.QtyShipped,0)
   +IFNULL(pi.QtyNotAvail,0)
   +IFNULL(pi.QtyKilled,0)) AS QtyHandled

FROM

 ord_lines AS oi
   LEFT JOIN ord_pkg_lines pi ON pi.ID_OrdLine=oi.ID

GROUP BY

 oi.ID,
 oi.ID_Order,
 oi.ID_Item,
 oi.CatNum,
 oi.Descr,
 oi.QtyOrd,
 oi.Price

HAVING oi.QtyOrd-QtyHandled >0;</mysql>

qryStock_forOpenOrders

Show all stock available to fill open orders, along with helpful information about the Bin, Order, and Item: <mysql>CREATE OR REPLACE VIEW qryStock_forOpenOrders AS SELECT

 s.ID_Bin,
 s.ID_Item,
 oi.ID_Order,
 oi.QtyOpen,
 s.QtyForSale,
 s.QtyForShip,
 o.WhenNeeded,
 o.Number AS OrdNum,
 CONCAT_WS(' ',s.CatNum,s.Descr) AS ItemText,

/* s.BinCode,

 s.BinDescr,  are these ever needed? */
 CONCAT_WS(' ',s.BinCode,s.BinDescr) AS BinText

FROM (v_stk_byItemAndBin_wInfo AS s LEFT JOIN qryOrderLines_notPkgd AS oi ON s.ID_Item=oi.ID_Item) LEFT JOIN core_orders AS o ON oi.ID_Order=o.ID WHERE (NOT s.isPulled) AND (o.ID_Pull IS NULL) AND (QtyOpen)</mysql>

• There's a possibility this query will return wrong information when there are multiple stock lines corresponding to the items needed; further testing would be a good idea.

Restocks

qryCbx_Restocks

I don't know WTF is going on here. MySQL wouldn't let me create this as one big query (no error message, just "query cancelled"), so I tried to split it into two parts and union them -- but I get the same error message. For now, I'm just defining the subqueries in MySQL and the UNION in Access. :-P <mysql>CREATE OR REPLACE VIEW qryCbx_Restocks_byStatus AS SELECT

 r.ID,
 CAST(
   CONCAT(
     CAST(COALESCE(
       CONCAT('X ',DATE_FORMAT(r.WhenKilled,'%Y-%m-%d')),
       CONCAT('R ',DATE_FORMAT(r.WhenReceived,'%Y-%m-%d')),
       CONCAT('O ',DATE_FORMAT(r.WhenOrdered,'%Y-%m-%d')),
       CONCAT('D ',DATE_FORMAT(r.WhenDebited,'%Y-%m-%d')),
       CONCAT('C ',DATE_FORMAT(r.WhenCreated,'%Y-%m-%d'))
     ) AS BINARY),
     ' ',
     s.CatKey,
     IFNULL(CONCAT(' [',r.PurchOrdNum,']'),)
   ) AS CHAR
 ) AS Descr,
 NOT IsLocked AS IsOpen,
 r.WhenOrdered,
 r.WhenReceived,
 r.WhenConfirmed,
 r.ID_Supplier

FROM core_restocks AS r LEFT JOIN cat_supp AS s ON r.ID_Supplier=s.ID ORDER BY COALESCE(r.WhenKilled,r.WhenReceived,r.WhenOrdered,r.WhenDebited,r.WhenCreated);

CREATE OR REPLACE VIEW qryCbx_Restocks_byPurchOrd AS SELECT

 r.ID,
 CAST(r.PurchOrdNum AS CHAR) AS Descr,
 NOT IsLocked AS IsOpen,
 r.WhenOrdered,
 r.WhenReceived,
 r.WhenConfirmed,
 r.ID_Supplier

FROM core_restocks AS r WHERE r.PurchOrdNum IS NOT NULL ORDER BY r.PurchOrdNum;

CREATE OR REPLACE VIEW qryCbx_Restocks AS

 SELECT * FROM qryCbx_Restocks_byStatus

UNION

 SELECT * FROM qryCbx_Restocks_byPurchOrd;</mysql>

qryFrm_RestockLines

<mysql>CREATE OR REPLACE VIEW qryFrm_RestockLines AS SELECT

 ri.ID,
 ri.ID_Restock,
 ri.ID_Item,
 ci.CatNum,
 ci.Supp_CatNum,
 ci.PriceSell,
 ci.QtyMin_Stk,
 o.Number AS OrderName,
 ci.Descr AS ItemDescr,
 o.WhenNeeded,
 If(t.RstkMin = 1, , t.RstkMin) AS RstkMinStr,
 ri.QtyOrd,
 ri.QtyNeed,
 ri.QtyExp,
 ri.InvcLineNo,
 ri.InvcQtyOrd,
 ri.InvcQtySent,
 ri.isGone,
 ri.QtyRecd,
 ri.QtyFiled,
 ri.CostExpPer,
 ri.CostInvPer,
 ri.CostInvTot,
 ri.CostActTot,
 ri.CostActBal,
 ri.Notes

FROM (

 (rstk_lines AS ri
   LEFT JOIN core_orders AS o ON ri.ID_Order=o.ID)
 LEFT JOIN qryCbx_Items_data AS ci ON ri.ID_Item=ci.ID)

LEFT JOIN cat_titles AS t ON ci.ID_Title=t.ID;</mysql>

• A lot of these fields were added back when this query was still the data source for qryFrm_RestockLines_byItem; this is no longer the case. Probably the only customer for this query is the Restock Items entry form, so any fields not needed there can probably be done away with.

qryFrm_RestockLines_byItem

Basically the same as qryFrm_RestockLines, but grouped by ID_Item and with more Item-related fields <mysql>CREATE OR REPLACE VIEW qryFrm_RestockLines_byItem AS SELECT

 CONCAT(ri.ID_Item,'-',ri.ID_Restock) AS Key_RstkItem,
 ri.ID_Item,
 ri.ID_Restock,
 i.Descr AS ItemDescr,
 i.CatNum,
 i.Supp_CatNum,
 SUM(IFNULL(ri.QtyOrd,0)) AS QtyOrd,
 SUM(IFNULL(ri.QtyExp,0)) AS QtyExp,
 ri.CostExpPer,
 i.PriceSell,
 i.QtyMin_Stk

FROM rstk_lines AS ri LEFT JOIN qryCbx_Items_data AS i ON ri.ID_Item=i.ID GROUP BY ri.ID_Restock, ri.ID_Item, i.CatNum, i.Supp_CatNum, ri.CostExpPer, i.PriceSell, i.QtyMin_Stk ORDER BY i.CatNum;</mysql>

v_rstk_lines_wItemInfo

<mysql>CREATE OR REPLACE VIEW v_rstk_lines_wItemInfo AS SELECT

 ri.*,
 i.ID_Title,
 IFNULL(r.WhenOrdered,r.WhenCreated) AS WhenDone

FROM

 (rstk_lines AS ri
 LEFT JOIN cat_items AS i ON ri.ID_Item=i.ID)
 LEFT JOIN core_restocks AS r ON ri.ID_Restock=r.ID;</mysql>

Stock

v_stk_lines_remaining

View listing stk_items actually in stock, which is actually different things:

• "forSale": items which are visible as "in stock" to customers
• "forShip": items which are available for shipping
• items neither for shipping nor for sale (probably some kind of recordkeeping purpose)

<mysql>CREATE OR REPLACE VIEW v_stk_lines_remaining AS

 SELECT
   st.ID,
   st.ID_Bin,
   st.ID_Item,
   IF(sb.isForSale,st.Qty,0) AS QtyForSale,
   IF(sb.isForShip,st.Qty,0) AS QtyForShip,
   st.Qty AS QtyExisting,
   st.CatNum,
   st.WhenAdded,
   st.WhenChanged,
   st.WhenCounted,
   st.Notes,
   sb.ID_Place,
   sp.Name AS WhName
   FROM
     (
       stk_items AS st
       LEFT JOIN stk_bins AS sb
         ON sb.ID=st.ID_Bin
      )
      LEFT JOIN stk_places AS sp
        ON sb.ID_Place=sp.ID
   WHERE (st.WhenRemoved IS NULL) AND (sb.WhenVoided IS NULL) AND (st.Qty <> 0);</mysql>

v_stk_items_remaining

<mysql>CREATE OR REPLACE VIEW v_stk_items_remaining AS

 SELECT
   ID_Item,
   SUM(QtyForSale) AS QtyForSale,
   SUM(QtyForShip) AS QtyForShip,
   SUM(QtyExisting) AS QtyExisting
 FROM v_stk_lines_remaining
 GROUP BY ID_Item;</mysql>

v_stk_byItemAndBin

<mysql>CREATE OR REPLACE VIEW v_stk_byItemAndBin AS

 SELECT
   ID_Item,
   ID_Bin,
   SUM(QtyForSale) AS QtyForSale,
   SUM(QtyForShip) AS QtyForShip,
   SUM(QtyExisting) AS QtyExisting
 FROM v_stk_lines_remaining
 GROUP BY ID_Item, ID_Bin
 HAVING SUM(QtyExisting)>0;</mysql>

v_stk_byItemAndBin_wItemInfo

Is anything actually using this? Document! (I've tentatively removed the link in Access.) <mysql>CREATE OR REPLACE VIEW v_stk_byItemAndBin_wItemInfo AS

 SELECT * FROM v_stk_byItemAndBin AS s LEFT JOIN qryCat_Items AS i ON s.ID_Item=i.ID;</mysql>

v_stk_byItemAndBin_wInfo

<mysql>CREATE OR REPLACE VIEW v_stk_byItemAndBin_wInfo AS

 SELECT
   s.*,
   i.*,
   b.ID_Place,
   b.Code AS BinCode,
   b.Descr AS BinDescr
 FROM
 (
   v_stk_byItemAndBin AS s LEFT JOIN qryCat_Items AS i ON s.ID_Item=i.ID
 ) LEFT JOIN stk_bins AS b ON s.ID_Bin=b.ID;</mysql>

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>