DynamoDb:查询两个日期之间的项目 [英] DynamoDb: Query items between two dates
本文介绍了DynamoDb:查询两个日期之间的项目的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我对该查询不太满意,它返回0个项目
I'm not having much luck with this query, it returns 0 items
const { Items } = await this.dynamoDb.query({
TableName: 'exampleTableName',
IndexName: 'createdDateTime-index',
KeyConditionExpression: '#createdDateTime BETWEEN :fromDateTime AND :toDateTime AND #status = :status',
ExpressionAttributeNames: {
'#status': 'status',
'#createdDateTime': 'createdDateTime',
},
ExpressionAttributeValues: {
':fromDateTime': '2017-02-20T01:58:49.710Z',
':toDateTime': new Date().toISOString(),
':status': 'SUCCESS',
},
}).promise();
我在数据库中有一项:
{
"id": "fa47003a-983a-4dc3-a87e-ace73ea7e451",
"createdDateTime": "2018-02-20T02:58:49.710Z",
"status": "SUCCESS"
}
表:
aws dynamodb create-table \
--endpoint-url http://localhost:8000 \
--table-name exampleTableName \
--attribute-definitions \
AttributeName=id,AttributeType=S \
AttributeName=status,AttributeType=S \
AttributeName=createdDateTime,AttributeType=S \
--key-schema \
AttributeName=id,KeyType=HASH \
--provisioned-throughput ReadCapacityUnits=10,WriteCapacityUnits=10 \
--global-secondary-indexes \
IndexName=createdDateTime-index,KeySchema=["{AttributeName=status,KeyType=HASH},{AttributeName=createdDateTime,KeyType=RANGE}"],Projection="{ProjectionType=ALL}",ProvisionedThroughput="{ReadCapacityUnits=10,WriteCapacityUnits=10}"
我希望2018-02-20T02:58:49.710Z介于2017-08-30T03:11:22.627Z和现在。
I would expect 2018-02-20T02:58:49.710Z to fall between 2017-08-30T03:11:22.627Z and now.
您能帮忙查询吗?
推荐答案
您是否尝试过使用。 scan 而不是。 query ?
Have you tried using .scan instead of .query ?
this.dynamoDB.scan(params, onScan); // scan can do filtering
function onScan(err, data) {
if (err) {
console.error("Unable to scan the table. Error JSON:", JSON.stringify(err, null, 2));
} else {
//do something with data
}
这篇关于DynamoDb:查询两个日期之间的项目的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文