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Questions tagged [amazon-qldb]

Amazon Quantum Ledger Database (Amazon QLDB) is a fully managed ledger database owned by a central trusted authority that provides a transparent, immutable, and cryptographically verifiable transaction log of all of your application changes. Amazon QLDB tracks all application data changes and maintains a complete and verifiable history of changes over time.

What Is Amazon QLDB? - Amazon Quantum Ledger Database (Amazon QLDB)

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Accessing QLDB ledger in another AWS account

I'm having trouble accessing the QLDB ledger in another AWS account. I have granted necessary IAM permission for cross-account access. I set the credentials in the EC2 where my python script is runing using below code. sts_client =…
Chamara Keragala
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Amazon QLDB increase document transaction limit or counter it

I created an application that is in production now and it has a function that does a lot of calculations and stores the data in QLDB. This function was working fine but our user increased and now whenever we call this function it says document…
Sulman Azhar
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QLDB Transaction Isolation

I was looking at the sample code here: https://docs.aws.amazon.com/qldb/latest/developerguide/getting-started.python.step-5.html, and noticed that the three functions get_document_id_by_gov_id, is_secondary_owner_for_vehicle and…
ljiatu
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Get X-Ray interactions For AWS QLDB Using Nodejs ( lambda )

I tried this way, But I want more detailed requests inside QLDB x-ray interactions. const AWSXRay = require("aws-xray-sdk"); /** QLDB x-ray */ AWSXRay.captureAWS(require("aws-sdk")); //For this x-ray show sendCommand() Requests, But info not in…
Hanoj B
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Limited number of rows in QLDB

I need limited number of rows while fetch the data from QLDB. Unfortunately, QLDB does not support Limit function in it's queries. However, MySQL supports the feature of limited number of rows from table. But, I have seen the Reserve Words in QLDB.…
Bilal Shahid
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Will this SELECT QLDB query using index be optimized or not

I have one table with some indexes and some different columns. I am running this query to get the result of a user's data, not all the user data. The user field is defined by UID The time field is defined by TimeValue (i am entering time in numbers…
Sulman Azhar
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Is there a way to get the generated QLDB Ledger Name from qldb.CfnLedger in AWS CDK?

I'm creating a QLDB Ledger as part of my stack. I would like to not have to supply a Ledger Name (otherwise I can't create multiple envs because of name clashes). I also need to know the Ledger Name as an output / returned value from my stack…
Chris Sargent
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How to enable paging for AWS QLDB search query results in python?

I am currently designing a project where my AWS Lambda Function in Python needs to run a search query on a table from a QLDB Ledger. The lambda function implements an API gateway endpoint which is invoked from a HTML web UI. Therefore, I need to…
bappak
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How to fetch all records based on year in Amazon QLDB

I have a requirement to fetch all records from an amazon QLDB based on the given year. Here is my data inside the Revenues Table. { ownerId: "u102john2021", transactionId: "tran010101010101", timeStamp: 2021-06-11T19:31:31.000Z } { ownerId:…
Dasun
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Can we alter AWS QLDB table?

Suppose I have created a table like this. CREATE TABLE Vehicle and insert some documents to this table. INSERT INTO Vehicle << { 'VIN' : '1N4AL11D75C109151', 'Type' : 'Sedan', } >> So my requirement is to change the table name from Vehicle…
dasun_001
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How to get the latest record first in qldb?

Select * from Transactions where id='1234' How to get latest record first i.e. records in descending order
Aman Mate
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Amazon QLDB Multi-Region Architecture

I am new to QLDB and seem to be finding slightly conflicting info on multi-Region architecture. I see that it has high availability in a given Region; however, it is unclear as to what happens when an entire Region goes down, or how I use it in a…
Sobi-Wan Kenobi
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Connect different region QLDB database

I have created windows instance in eu-west-2 and AWS doesn't provide QLDB service in eu-west-2 so I have created QLDB database service in eu-west-1 region. Now I am getting error when I use QLDB service from eu-west-1: The Ledger with name XXX is…
Andy
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Laravel QLDB Fetch data in plain text, how?

I have stored data into amazon QLDB using AWS console but I want to fetch this data into my application using aws-sdk-php-laravel. My code: public function index(){ $client = AWS::createClient('qldb-session'); $result=…
Malik Hanzala
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getting whole ledger history in QLDB

Is there any way to get a history of the whole ledger instead of getting history on table level in QLDB?
ajay
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