Javascript 如何根据条件从COSMOS DB中选择记录
我在Azure Cosmos数据库中有一个文档 其内容包括:Javascript 如何根据条件从COSMOS DB中选择记录,javascript,sql,azure-cosmosdb,Javascript,Sql,Azure Cosmosdb,我在Azure Cosmos数据库中有一个文档 其内容包括: { “id”:“58d56db3b3f730153cab383c”, “活动日期”:“2017-02-11T19:04:18Z”, ... ... } 我有一个要求,选择的文件是超过3天只 为此,我写了: //示例存储过程 function deleteActivitiesBackDate(numberOfDays) { var context = getContext(); var collection = context.
{
“id”:“58d56db3b3f730153cab383c”,
“活动日期”:“2017-02-11T19:04:18Z”,
...
...
}
我有一个要求,选择的文件是超过3天只
为此,我写了:
//示例存储过程
function deleteActivitiesBackDate(numberOfDays) {
var context = getContext();
var collection = context.getCollection();
var link = collection.getSelfLink();
var response = context.getResponse();
var targetDate = new Date();
targetDate.setDate(targetDate.getDate() - 3);
console.log("targetDate is "+targetDate);
var query = 'SELECT * FROM activities a WHERE a.activityDate < "' + targetDate+ '"';
var run = collection.queryDocuments(link, query, {}, callback);
function callback(err, docs) {
if (err){
return errorResponse(400, err.message);
}
if (docs.length > 0){
for(var i =0;i<docs.length;i++){
deleteDoc(docs[i]);
}
}else {
return errorResponse(400, "The document was not found.");
}
}
if (!run) {
return errorResponse(400, "The document could not be deleted.");
}
function deleteDoc(document) {
var docDeleted = collection.deleteDocument(document._self, function(err, result){
if (err){
return errorResponse(400, err.message);
}
response.setBody(result);
});
if (!docDeleted) {
return errorResponse(400, "The document could not be deleted.");
}
};
function errorResponse(code,message){
var errorObj = {};
errorObj.code = code;
errorObj.message = message;
errorObj.date = getDateTime();
return response.setBody(errorObj);
}
function getDateTime(){
var currentdate = new Date();
var dateTime = currentdate.getFullYear() + "-" +(currentdate.getMonth()+1)+ "-" + currentdate.getDate()+ " " +currentdate.getHours()+":"+currentdate.getMinutes()+":"+currentdate.getSeconds();
return dateTime;
}
}
函数deleteActivitiesBackDate(number天){
var context=getContext();
var collection=context.getCollection();
var link=collection.getSelfLink();
var response=context.getResponse();
var targetDate=新日期();
targetDate.setDate(targetDate.getDate()-3);
console.log(“targetDate为”+targetDate);
变量查询='从活动a中选择*,其中a.activityDate<“+targetDate+”;
var run=collection.queryDocuments(链接、查询、{}、回调);
函数回调(错误、文档){
如果(错误){
返回errorResponse(400,错误消息);
}
如果(docs.length>0){
对于(var i=0;i我认为您希望更改select语句的外观,使用.toISOString()函数,如下所示:
var query = 'SELECT * FROM activities a WHERE a.activityDate < "' + targetDate.toISOString()+ '"';
为此:
targetDate.setDate(targetDate.getDate() - numberOfDays);
什么意思,activityDate
的类型是var
?这不是一种类型。日期属性在文档中是什么样子的?是否存储为历元?是否存储为格式化字符串?以及targetDate
呈现为什么?
targetDate.setDate(targetDate.getDate() - numberOfDays);