多个连接的错误数据结果（mysql查询）

Question

我正在尝试使用外键连接多个表，以便能够访问其他列。我有下面的查询，这个结果显示了一个包含重复数据的表

目前的结果

+-----------+-----------+----------+----------+-------------+-------------+-----+
| ponumber  | drNumber  | itemCode | itemName | receivedQty | rejectedQty | ... |
+-----------+-----------+----------+----------+-------------+-------------+-----+
|  00000001 | 000000002 | 13333333 | button   |           1 |           0 |     |
|  00000001 | 000000002 | 13333333 | button   |          20 |           0 |     |
+-----------+-----------+----------+----------+-------------+-------------+-----+

预期结果

+-----------+-----------+----------+----------+-------------+-------------+-----+
| ponumber  | drNumber  | itemCode | itemName | receivedQty | rejectedQty | ... |
+-----------+-----------+----------+----------+-------------+-------------+-----+
|  00000001 | 000000002 | 13333333 | button   |           1 |           0 |     |
|  00000001 | 000000002 | 13333331 | pajama   |          20 |           0 |     |
+-----------+-----------+----------+----------+-------------+-------------+-----+

看起来查询正在获取所需的信息，即2行，但结果不正确。

 SELECT SPO.poNumber
    ,SDR.drNumber
    ,I.itemCode
    ,I.itemName
    ,SDR.receivedQty
    ,SDR.rejectedQty
    ,SPO.volumeQty
    ,SPO.dateMade
    ,SPO.deliveryDate
    ,U.lastName AS preparedbyLastName
    ,U.firstName AS preparedbyFirstName
    ,S.unitPrice
    ,I.unitMeasurement
    ,I.inventoryType
    ,SPO.receivingStatus
    ,SPO.notes
FROM ref_item I
JOIN ref_supplier S ON S.itemCode = I.itemCode
JOIN supplier_purchase_order SPO ON SPO.supplier = S.supplierID
JOIN supplier_delivery_receipt SDR ON SDR.poNumber = SPO.poNumber
JOIN user U ON SPO.preparedBy = U.employeeID
WHERE SPO.poNumber = 70000006
    AND SPO.receivingStatus != "complete"
ORDER BY itemName;

受影响的表是ref_item，ref_supplier，supplier_purchase_order和supplier_delivery_receipt

Answer 1

您必须按表示为主键的所有列链接您的表，并将其链接到其他表作为外键。

例如，您的表格var myApp = angular.module('myApp',[]); myApp.directive('dSec', function($window) { return { link: function(scope, elm, attr, ctrl) { scope.initialScroll[attr.id] = elm.prop('offsetTop'); angular.element($window).bind("scroll", function() { if (this.pageYOffset >= scope.initialScroll[attr.id] && !scope.hitScroll[attr.id]) { console.log("Scroll to --> ", attr.id); scope.hitScroll[attr.id] = true; } }); } }; }); //myApp.factory('myService', function() {}); function MyCtrl($scope) { $scope.initialScroll = {}; $scope.hitScroll = {}; } 和表格supplier_purchase_order与列supplier_delivery_receipt和poNumber相关联，但在您的查询中，您只有1列

itemCode

您需要在每个联接中放置两列。要获得有关如何解决此检查的更多信息this link。

希望它可以帮到你

Answer 2

您需要使用img src="images/headerimagename.png"和ON加入所有主要加密键。

AND