à obtenir le nombre

Question

Voici ma table de schéma complet, je veux obtenir le chaque chef de vente de la catégorie,

Comment obtenir que chaque chef d'accusation de vente de la catégorie,

CREATE TABLE IF NOT EXISTS `tblbasket` (
    `BID` int(20) NOT NULL 
    AUTO_INCREMENT, 
    `BasketSessionID` varchar(100) NOT NULL DEFAULT '0', 
    `ProductCode` varchar(50) NOT NULL, 
    `Quantity` int(20) NOT NULL, 
    `AfterDiscount` double NOT NULL DEFAULT '0', 
    `ProductCost` double NOT NULL, 
    `SaleMode` varchar(10) NOT NULL DEFAULT 'p' COMMENT 'p Price f Free', 
    `BillType` varchar(5) NOT NULL DEFAULT 's' COMMENT 's sale r Returns', 
    `EntryUser` int(20) NOT NULL, 
    `EntryTimestamp` int(50) NOT NULL, 
    `EntryDate` datetime NOT NULL, 
    `UpdatedUser` int(20) NOT NULL, 
    `UpdatedDate` datetime NOT NULL, 
    `Status` int(3) NOT NULL DEFAULT '1', 
    PRIMARY KEY (`BID`) 
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=6 ; 

CREATE TABLE IF NOT EXISTS `tblcategory` (
    `CatID` int(11) NOT NULL AUTO_INCREMENT, 
    `CatName` varchar(20) NOT NULL, 
    `Discount` int(11) NOT NULL, 
    `EntryUser` int(10) NOT NULL, 
    `EntryDate` datetime NOT NULL, 
    `UpdateUser` int(20) NOT NULL, 
    `UpdatedDate` datetime NOT NULL, 
    `Status` int(3) NOT NULL DEFAULT '1', 
    PRIMARY KEY (`CatID`), 
    KEY `CatName` (`CatName`) 
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=11 ; 

CREATE TABLE IF NOT EXISTS `tblsale` (`SaleID` int(20) NOT NULL AUTO_INCREMENT, 
    `BillNo` varchar(30) NOT NULL DEFAULT '0', 
    `BasketSessionID` varchar(200) NOT NULL, 
    `AfterDiscount` double NOT NULL, 
    `ProductCost` double NOT NULL, `VAT` int(20) NOT NULL DEFAULT '0', 
    `BillType` varchar(5) NOT NULL DEFAULT 's' COMMENT 'same like tblbasket table', 
    `EntryUser` int(20) NOT NULL, 
    `EntryDate` datetime NOT NULL, 
    `UpdatedUser` int(20) NOT NULL, 
    `UpdateDate` datetime NOT NULL, 
    `OfficeNotesTS` text NOT NULL, 
    `Status` int(5) NOT NULL DEFAULT '1', 
    PRIMARY KEY (`SaleID`), 
    UNIQUE KEY `BillNo` (`BillNo`), 
    UNIQUE KEY `BasketSessionID` (`BasketSessionID`) 
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ; 

CREATE TABLE IF NOT EXISTS `tblstock` (
    `StockID` int(20) NOT NULL AUTO_INCREMENT, 
    `ProductCode` varchar(50) NOT NULL,   
    `ManufacturerID` int(20) NOT NULL, 
    `CategoryID` int(20) NOT NULL, 
    `ProductTitle` varchar(150) NOT NULL, 
    `Timestamp` int(50) NOT NULL, 
    `EntryUser` int(20) NOT NULL, 
    `EntryDate` datetime NOT NULL, 
    `UpdateUser` int(20) NOT NULL, 
    `UpdatedDate` datetime NOT NULL, 
    `Status` int(3) NOT NULL DEFAULT '1', 
    PRIMARY KEY (`StockID`), 
    KEY `ManufacturerID` (`ManufacturerID`), 
    KEY `CategoryID` (`CategoryID`) 
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2175 ; 

CREATE TABLE IF NOT EXISTS `tblstockhistory` (
`STID` int(20) NOT NULL AUTO_INCREMENT, 
    `StockID` int(20) NOT NULL, 
    `SupplierID` int(20) NOT NULL, 
    `InvoiceNO` varchar(20) NOT NULL, 
    `InvoiceDate` datetime NOT NULL, 
    `InvoiceAmount` float NOT NULL DEFAULT '0', 
    `Quantity` int(20) NOT NULL, 
    `Cost` float NOT NULL, 
    `MRP` float NOT NULL, 
    `Discount` int(20) NOT NULL DEFAULT '0', 
    `VAT` float NOT NULL, 
    `EntryUser` int(10) NOT NULL, 
    `EntryDate` datetime NOT NULL, 
    `UpdateUser` int(20) NOT NULL, 
    `UpdatedDate` datetime NOT NULL, 
    `Status` int(10) NOT NULL DEFAULT '1', 
    PRIMARY KEY (`STID`), 
    KEY `StockID` (`StockID`) 
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2190 ; 

ALTER TABLE `tblstock` 
    ADD CONSTRAINT `tblStock_ibfk_1` 
    FOREIGN KEY (`ManufacturerID`) 
    REFERENCES `tblmanufacturer` (`ManufacturerID`); 

ALTER TABLE `tblstockhistory` 
    ADD CONSTRAINT `tblStockHistory_ibfk_1` 
    FOREIGN KEY (`StockID`) 
    REFERENCES `tblstock` (`StockID`); 

Answer 1

essayer quelque chose comme ça (son difficile à comprendre sans clé étrangère, et peu expliquer):

SELECT st.CategoryID,SUM(b.ProductCost*b.Quantity) FROM tblsale s 
LEFT JOIN tblbasket b ON b.BasketSessionID = s.BasketSessionID 
LEFT JOIN tblstock st ON st.ProductCode = b.ProductCode GROUP BY st.CategoryID