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POComplex mySQL Query (again)
 

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    <p>My apologies that the question title is not more specific.</p> <p>I am working on a system that involves stock control and membership records. The current problem relates to the 'membership packs' that are given to new members on joining; there are a variety of membership types and each one gets a pack with several items in, no two packs are exactly the same but there is some overlap with some products being used in more than one pack. I need to calculate the number of each product that is used in a given batch of new members.</p> <p>I can create a query that gives me the total of different membership types in a batch.</p> <p>I can create a query that give me the total of each product required to make one of each of those packs.</p> <p>I need to create a query that is a combination of both.</p> <p>The query that gives the total of each type in a batch: <code><pre> SELECT COUNT(*) AS theCount, membershipPackType FROM inputBatches LEFT JOIN inputActions ON inputActionID = inputBatchAction LEFT JOIN members ON memberID = inputBatchMemberID LEFT JOIN membershipPacks ON membershipPackType = memberMembershipType LEFT JOIN memPack ON memPackInputBatch = inputBatchID WHERE memPackBookedOut = 'U' AND inputActionAbbr &lt;> 'E' GROUP BY membershipPackType ORDER BY membershipPackType; </pre></code></p> <p>This query produces the output at the top of the linked image:</p> <p>The query that gives the total of each product to make one of each of the types from the result of the above query: <code><pre> SELECT COUNT(*) AS theCount, stockItem FROM membershipPackItems LEFT JOIN membershipPacks ON membershipPackNumber = membershipPackType LEFT JOIN stock ON stockNumber = membershipPackItemNo WHERE membershipPackNumber = 11 OR membershipPackNumber = 12 OR membershipPackNumber = 13 OR membershipPackNumber = 14 OR membershipPackNumber = 23 OR membershipPackNumber = 24 OR membershipPackNumber = 25 GROUP BY stockItem ORDER BY stockNumber; </pre></code></p> <p>This query produces the output at the bottom of this image:</p> <p><a href="http://www.kidderminsterharriers.com/images/query4.png" rel="nofollow noreferrer">http://www.kidderminsterharriers.com/images/query4.png</a></p> <p>If I could combine the two queries then I wouldn't have the WHERE clause in the second query that is hard-coded like that. Also, what this second query doesn't allow for is that the membershipPackItems table includes a field for quantity; it assumes that the quantity of each item per pack is 1.</p> <p>The ultimate aim is to have query that outputs in a similar fashion to the second query but that the column that is currently 'theCount' is a total allows for the number of each item in the pack (ie more than 1 if needed) and then multiplied up by the number of packs in the batch; in this case those items that currently have a count of 7 (there's 7 different types in this batch and those items appear in all of them) would be 62 (there's 62 members total in this batch).</p> <p>This is the structure of the data tables used: <code><pre> CREATE TABLE <code>membershipPackItems</code> ( <code>membershipPackItemID</code> int(10) NOT NULL auto_increment, <code>membershipPackNumber</code> int(7) NOT NULL, <code>membershipPackItemNo</code> varchar(6) NOT NULL, <code>membershipPackItemQty</code> int(7) NOT NULL, PRIMARY KEY (<code>membershipPackItemID</code>) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=71 ;</p> <p>CREATE TABLE <code>membershipPacks</code> ( <code>membershipPackID</code> int(5) NOT NULL auto_increment, <code>membershipPackTitle</code> varchar(50) default NULL, <code>membershipPackType</code> int(5) default NULL, PRIMARY KEY (<code>membershipPackID</code>) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=13 ;</p> <p>CREATE TABLE <code>stock</code> ( <code>stockID</code> int(10) NOT NULL auto_increment, <code>stockNumber</code> int(8) NOT NULL, <code>stockItem</code> varchar(50) NOT NULL, <code>stockNominalNo</code> int(14) NOT NULL, <code>stockVATNo</code> int(3) NOT NULL, <code>stockDecLevel</code> varchar(1) NOT NULL, <code>stockPeriodSold</code> int(14) NOT NULL, <code>stockPeriodSoldValue</code> float NOT NULL, <code>stockPPurchased</code> int(14) NOT NULL, <code>stockYTDSold</code> int(14) NOT NULL, <code>stockYTDSoldValue</code> float NOT NULL, <code>stockYTDPurchased</code> int(14) NOT NULL, <code>stockDefectLevel</code> int(14) NOT NULL, <code>stockCurrentLevel</code> int(14) NOT NULL, <code>stockReOrderLevel</code> int(14) NOT NULL, <code>stockHolding</code> int(14) NOT NULL, <code>stockBackOrderQty</code> int(14) NOT NULL, <code>stockRetail</code> float NOT NULL, <code>stockCost</code> float NOT NULL, <code>stockOrdered</code> int(14) NOT NULL, <code>stockSupplierNo</code> int(7) NOT NULL, <code>stockSupplierStockNo</code> varchar(20) NOT NULL, <code>stockDeliveryDate</code> date NOT NULL, <code>stockDeleted</code> varchar(1) NOT NULL, <code>stockAllowedLeaps</code> varchar(1) NOT NULL, <code>stockCount</code> int(14) NOT NULL, <code>stockCountDate</code> date NOT NULL, <code>stockCountComment</code> varchar(30) NOT NULL, <code>stockGroup1</code> varchar(4) NOT NULL, <code>stockGroup2</code> varchar(4) NOT NULL, <code>stockNewStockNo</code> varchar(6) NOT NULL, <code>stockStatus</code> int(3) NOT NULL, PRIMARY KEY (<code>stockID</code>) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1779 ;</p> <p>CREATE TABLE <code>inputBatches</code> ( <code>inputBatchID</code> int(10) NOT NULL auto_increment, <code>inputBatchInputNumber</code> int(8) NOT NULL, <code>inputBatchMemberID</code> int(8) NOT NULL, <code>inputBatchAction</code> int(5) NOT NULL, <code>inputBatchDate</code> date NOT NULL, PRIMARY KEY (<code>inputBatchID</code>) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=88 ;</p> <p>CREATE TABLE <code>members</code> ( <code>memberID</code> int(6) NOT NULL auto_increment, <code>memberCentre</code> int(5) NOT NULL, <code>memberMembershipNo</code> int(15) NOT NULL, <code>memberSurname</code> varchar(50) NOT NULL, <code>memberForename</code> varchar(50) NOT NULL, <code>memberSecondName</code> varchar(50) NOT NULL, <code>memberParentTitle</code> int(3) NOT NULL, <code>memberParentSurname</code> varchar(50) NOT NULL, <code>memberParentForename</code> varchar(50) NOT NULL, <code>memberStreet1</code> varchar(100) NOT NULL, <code>memberStreet2</code> varchar(100) NOT NULL, <code>memberTown</code> varchar(50) NOT NULL, <code>memberCounty</code> varchar(20) NOT NULL, <code>memberPostcode</code> varchar(10) NOT NULL, <code>memberPhoneSTD</code> varchar(6) NOT NULL, <code>memberPhone</code> varchar(20) NOT NULL, <code>memberMobile</code> varchar(20) NOT NULL, <code>memberEmail</code> varchar(255) NOT NULL, <code>memberDOB</code> date NOT NULL, <code>memberJoined</code> date NOT NULL, <code>memberGender</code> enum('m','f') NOT NULL, <code>memberSibling</code> enum('no','yes') NOT NULL default 'no', <code>memberMembershipType</code> int(3) NOT NULL, <code>memberSpecNeedsNo</code> int(5) NOT NULL, <code>memberPromoNo</code> int(5) NOT NULL, <code>memberDataProtect</code> enum('no','yes') NOT NULL default 'no', <code>memberReceived</code> date NOT NULL, <code>memberMemberType</code> int(4) NOT NULL, <code>memberSendPack</code> enum('no','yes') NOT NULL default 'no', <code>memberSendGift</code> enum('no','yes') NOT NULL default 'no', <code>memberExpire</code> date NOT NULL, <code>memberDespatched</code> date NOT NULL, <code>memberInputNo</code> int(10) NOT NULL, <code>memberSSC</code> int(10) NOT NULL, <code>memberPrevStreet1</code> varchar(100) NOT NULL, <code>memberPrevStreet2</code> varchar(100) NOT NULL, <code>memberPrevTown</code> varchar(50) NOT NULL, <code>memberPrevCounty</code> varchar(20) NOT NULL, <code>memberPrevPostcode</code> varchar(10) NOT NULL, <code>memberPrevCentre</code> varchar(5) NOT NULL, <code>memberInvoiced</code> float NOT NULL, <code>memberPaid</code> float NOT NULL, <code>memberSpecNeedsString</code> varchar(255) NOT NULL, <code>memberNotes</code> mediumtext, <code>memberMembershipYear</code> int(3) default '1', PRIMARY KEY (<code>memberID</code>), UNIQUE KEY <code>memberMembershipNo</code> (<code>memberMembershipNo</code>), KEY <code>memberFullName</code> (<code>memberSurname</code>,<code>memberForename</code>), KEY <code>memberSurname</code> (<code>memberSurname</code>), KEY <code>memberForename</code> (<code>memberForename</code>) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=631747 ;</p> <p>CREATE TABLE <code>memPack</code> ( <code>memPackID</code> int(10) NOT NULL auto_increment, <code>memPackBookedOut</code> varchar(1) NOT NULL, <code>memPackDate</code> date NOT NULL, <code>memPackMembershipNo</code> int(14) NOT NULL, <code>memPackLicenseeNo</code> int(7) NOT NULL, <code>memPackMemTypeNo</code> int(7) NOT NULL, <code>memPackInputNumber</code> int(13) NOT NULL, <code>memPackInputBatch</code> int(10) NOT NULL, <code>memPackCentreNo</code> int(14) NOT NULL, PRIMARY KEY (<code>memPackID</code>) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=13675 ; </pre></code></p>
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