Question

这是我第一次使用INNER JOIN

(function(){
    'use strict';
// define controller

var controllerId = "siteInfo";
angular.module('app').controller(controllerId,
    [ 'common', 'datacontext', 'spContext', siteInfo]);

function siteInfo( common, datacontext, spContext) {
    var vm = this;


       init();


function init(){
initializePeoplePicker('peoplePickerDiv');    }

// setup the people picker
        function initializePeoplePicker(peoplePickerElementId) {
            // set config options on the people picker
            var schema = {};
            schema['PrincipalAccountType'] = 'User';
            schema['SearchPrincipalSource'] = 15;
            schema['ResolvePrincipalSource'] = 15;
            schema['AllowMultipleValues'] = false;
            schema['MaximumEntitySuggestions'] = 50;
            schema['Width'] = '280px';

            // Render and initialize the picker.  
            SPClientPeoplePicker_InitStandaloneControlWrapper(peoplePickerElementId, null, schema);
        }

}
}();

我得到的错误是：

SELECT `xxx_storage.*`, `xxx_foods.*` FROM xxx_storage INNER JOIN xxx_foods ON `xxx_storage.food_id` = `xxx_foods.food_id`

Answer 1

尝试删除后面的刻度：

SELECT xxx_storage.*,
       xxx_foods.*
FROM xxx_storage
INNER JOIN xxx_foods
 ON xxx_storage.food_id = xxx_foods.food_id

后退标记用于MySQL Reserved words，它们用于单个列，而不是它们的列表（*），因此当您使用它们来包装Table.*时，MySQL会自动将其视为一栏。

＃1054 - 字段列表中的未知列

1 个答案: