QDB | An optimised , document-based SQL database | Database library

by QSmally JavaScript Version: v4.0-b6 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(8)Vulnerabilities Install Support

kandi X-RAY | QDB Summary

QDB is a JavaScript library typically used in Database applications. QDB has no bugs, it has no vulnerabilities and it has low support. However QDB has a Non-SPDX License. You can install using 'npm i qdatabase' or download it from GitHub, npm.

QDB is a synchronous database module reliant on JavaScript object-documents with multiple levels of optimisation built into it.

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Quality

Security

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Support

QDB has a low active ecosystem.

It has 11 star(s) with 2 fork(s). There are 3 watchers for this library.

It had no major release in the last 12 months.

There are 0 open issues and 10 have been closed. On average issues are closed in 4 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of QDB is v4.0-b6

Quality

QDB has 0 bugs and 0 code smells.

Security

QDB has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

QDB code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

QDB has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

QDB releases are available to install and integrate.

Deployable package is available in npm.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed QDB and discovered the below as its top functions. This is intended to give you an instant insight into QDB implemented functionality, and help decide if they suit your requirements.

Find path to backup filesystem

Get all kandi verified functions for this library.

QDB Key Features

No Key Features are available at this moment for QDB.

QDB Examples and Code Snippets

No Code Snippets are available at this moment for QDB.

Community Discussions

Trending Discussions on QDB

Index value after selecting an option is not updated while trying to use it in next question(Flutter-SQLite-Dart)

Timestamps showing as 1970 in QuestDB when writing from node.js

How can I plot a moving average from Pandas to a chart?

How do I get query results from QuestDB into a Pandas dataframe?

How can I copy data from CSV into QuestDB using Python?

Maven fails to compile QuestDB from source with 'ambiguous reference to Record'

Internal architecture of in memory data base

Transaction in IndexDB does not start immediately if called after one already completed

QUESTION

Index value after selecting an option is not updated while trying to use it in next question(Flutter-SQLite-Dart)

Asked 2021-Nov-01 at 07:26

Working with the logic to navigate next questions with NoOfRoutes condition. Getting the index in nextQuestionCopy under QuestionControllerCopy is the problem akka. Only 0th index is what we are getting. If we are able to get the proper index the navigation will be successful.

QuestionController Class :-

...

ANSWER

Answered 2021-Nov-01 at 07:26

Solved it myself. Use SharedPreferences to pass the selected index value to condition.

Set sharedpreferences key, value in OptionRadio.dart class,

Source https://stackoverflow.com/questions/69779050

QUESTION

Timestamps showing as 1970 in QuestDB when writing from node.js

Asked 2021-Aug-27 at 09:07

I have a table that looks like:

timestamp sensor reading ts1 sensor name 123

The main part of my script where I'm writing data looks like the following:

...

ANSWER

Answered 2021-Aug-27 at 09:07

QuestDB has microsecond resolution timestamp natively. Date.now() creates a millisecond-resolution timestamp.

If you don't mind the loss of precision, you can just multiply by 1000:

Source https://stackoverflow.com/questions/68950689

QUESTION

How can I plot a moving average from Pandas to a chart?

Asked 2021-Aug-25 at 13:27

Given a table that looks like the following:

...

ANSWER

Answered 2021-Aug-25 at 13:27

What you can do in this case is use plotly:

Source https://stackoverflow.com/questions/68923827

QUESTION

How do I get query results from QuestDB into a Pandas dataframe?

Asked 2021-Aug-23 at 12:22

I'm connecting to QuestDB using psycopg2 from Python and running select * from my_table but the column names are sequential numbers:

...

ANSWER

Answered 2021-Aug-23 at 12:22

The problem is that fetchall gets the results for each row in the cursor, to properly return the table results, use read_sql_query:

Source https://stackoverflow.com/questions/68892627

QUESTION

How can I copy data from CSV into QuestDB using Python?

Asked 2021-Feb-24 at 15:03

I'm using the psychopg2 module to make queries against QuestDB from Python. I have had some trouble using the copy_from() cursor object to get CSV data into a table. What's the best way to get this into the database?

I'm trying the following:

...

ANSWER

Answered 2021-Feb-24 at 15:03

The copy_from() wrapper in psychopg2 is executing some SQL in the background that's not yet supported in QuestDB as of yet, specifically, it will run

Source https://stackoverflow.com/questions/66351802

QUESTION

Maven fails to compile QuestDB from source with 'ambiguous reference to Record'

Asked 2021-Jan-14 at 16:52

I've been running QuestDB from docker, but to try latest version from master, I followed documentation on GitHub but cannot build from source. The output from the console when I try run any maven commands (mvn clean test or build) looks like:

...

ANSWER

Answered 2021-Jan-14 at 16:52

QuestDB needs to be built with Java 11, check which version is running with

Source https://stackoverflow.com/questions/65722500

QUESTION

Internal architecture of in memory data base

Asked 2020-Oct-21 at 11:55

I'm using SQLite open-source database in my embedded system.
I have set below PRAGMA

...

ANSWER

Answered 2020-Oct-21 at 11:55

SQLite has a checkpoint that is managed data to write data in the main memory.

An automatic checkpoint is taken when the transaction log file becomes bigger than X GB since the last checkpoint. And after that size of the transaction log data write-in to main memory from RAM.

Data also write in the main memory when the last database connection on a database file closes.

Source https://stackoverflow.com/questions/64259696

QUESTION

Transaction in IndexDB does not start immediately if called after one already completed

Asked 2020-Jan-14 at 08:06

I'm using dexiejs to insert data in a Indexdb table(about 10k records).

After the rw transaction is completed, which I am checking with the following methods:

...

ANSWER

Answered 2020-Jan-09 at 22:59

How do you detect when the second transaction "starts" - is it when your first operation in it is resolved?

Anyhow, there might be several reasons for this. One is if you have another readonly transaction going on that blocks the next transaction from finishing. Another, I suppose, could be that the background thread that handles data processing for IndexedDB may be busy with cleanup work after a transaction has finished. If that would be the case I suppose it would not happen after every run though but more sporadically.

Source https://stackoverflow.com/questions/59668301

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