这可能是一个愚蠢的问题。我有一个工作人员function abc($rootScope,$scope, $state, $stateParams, $timeout, Upload, baseURL, $cookieStore, $log, errorCheckFactory) {
var columnDefs = [
{headerName: "Make", field: "make"},
{headerName: "Model", field: "model"},
{headerName: "Price", field: "price"}
];
var rowData = [
{make: "Toyota", model: "Celica", price: 35000},
{make: "Ford", model: "Mondeo", price: 32000},
{make: "Porsche", model: "Boxter", price: 72000}
];
$scope.gridOptions2 = {
columnDefs: columnDefs,
rowData: rowData,
enableFilter: true,
enableColResize: true,
enableSorting: true,
groupHeaders: true,
rowHeight: 22,
//onModelUpdated: onModelUpdated,
suppressRowClickSelection: true
};
，存储员工信息。我需要得到每个员工的薪水。所以我尝试了下面的查询
table但是输错了。然后我尝试如下，
SELECT staffid, SUM(ISNULL(amount,0) +ISNULL(bonus,0)) as amount
from payments
group by staffid
这次我得到了正确的SELECT staffid, SUM(ISNULL(amount,0)) + SUM(ISNULL(bonus,0))
from payments
group by staffid
。但我想知道为什么会出现差异。以上两个output操作是否有所不同？有人请对此有所了解。