dql | A SQL-ish language for DynamoDB | AWS library

by stevearc Python Version: 0.6.2 License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | dql Summary

dql is a Python library typically used in Cloud, AWS, Amazon S3, DynamoDB applications. dql has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install dql' or download it from GitHub, PyPI.

A SQL-ish language for DynamoDB

Support

Quality

Security

License

Reuse

Support

dql has a highly active ecosystem.

It has 147 star(s) with 12 fork(s). There are 7 watchers for this library.

It had no major release in the last 12 months.

There are 7 open issues and 20 have been closed. On average issues are closed in 203 days. There are 1 open pull requests and 0 closed requests.

It has a positive sentiment in the developer community.

The latest version of dql is 0.6.2

Quality

dql has 0 bugs and 0 code smells.

Security

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

dql code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

dql is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

dql releases are not available. You will need to build from source code and install.

Deployable package is available in PyPI.

Build file is available. You can build the component from source.

dql saves you 2935 person hours of effort in developing the same functionality from scratch.

It has 6337 lines of code, 606 functions and 34 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

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

List tables
Return a table meta
Returns the total consumed capacity and write capacity units
Return a list of all tables
Throttle throttle
Return a JSON representation of the table
Save the configuration file
Set the default limits
Create the grammar for an update expression
Remove all throttles
Create a query constraint
Constructs a function from arguments
Return a string representation of the item
Format the index
Get opts
Create a parser
Execute a query string
Connect to the given region
Display results
Generate a function for a function
Runs the less paging command
Create a selection expression
Create an expression from a selection
Start curses
Make an interval
Run a single command
Create an update expression from an update

Get all kandi verified functions for this library.

dql Key Features

No Key Features are available at this moment for dql.

dql Examples and Code Snippets

No Code Snippets are available at this moment for dql.

Community Discussions

Trending Discussions on dql

Documentum Object Type corrupted/ Cannot fetch sys_object

Deep Q Learning - Cartpole Environment

Doctrine JOIN with subquery in DQL

Vectorize loops when calculating rolling means with variable amounts of data

Doctrine Many-To-Many bulk insert

My doctrine query returns error with distrinct

Doctrine won't generate migration for new entity

Top level EXISTS query using Doctrine ORM

How to add DATE to doctrine query?

Doctrine: DQL query without specifying class fully qualified name (FQN)

QUESTION

Documentum Object Type corrupted/ Cannot fetch sys_object

Asked 2021-Jun-05 at 19:02

I am a bit new to documentum and it seems I have made a mistake. I had a document with object_type say dm_type1.

I updated the r_object_type with update query to say 'dm_type2' Now, the problem is 'dm_type2' doesn't exist in system.

Now the document is not accessible;also I aint able to update any properties with DQL. Any idea how it can be reverted back?

I tried creating a new object type with name dm_type2 wheich is a sub-type of dm_type1 but stillit didn't work

...

ANSWER

Answered 2021-Jun-03 at 04:41

Try clearing the cache. You can do that via API call. There is AFAIK three caches. It should obviously be the type cache. Good luck. Br.

Source https://stackoverflow.com/questions/67803610

QUESTION

Deep Q Learning - Cartpole Environment

Asked 2021-May-31 at 22:21

I have a concern in understanding the Cartpole code as an example for Deep Q Learning. The DQL Agent part of the code as follow:

...

ANSWER

Answered 2021-May-31 at 22:21

self.model.predict(state) will return a tensor of shape of (1, 2) containing the estimated Q values for each action (in cartpole the action space is {0,1}). As you know the Q value is a measure of the expected reward.

By setting self.model.predict(state)[0][action] = target (where target is the expected sum of rewards) it is creating a target Q value on which to train the model. By then calling model.fit(state, train_target) it is using the target Q value to train said model to approximate better Q values for each state.

I don't understand why you are saying that the loss becomes 0: the target is set to the discounted sum of rewards plus the current reward

Source https://stackoverflow.com/questions/67773479

QUESTION

Doctrine JOIN with subquery in DQL

Asked 2021-May-22 at 11:07

I have this SQL:

...

ANSWER

Answered 2021-May-18 at 22:51

As answered in #3542

DQL is about querying objects. Supporting subselects in the FROM clause means that the DQL parser is not able to build the result set mapping anymore (as the fields returned by the subquery may not match the object anymore).

Your best bet would be to use sql instead

Source https://stackoverflow.com/questions/67550845

QUESTION

Vectorize loops when calculating rolling means with variable amounts of data

Asked 2021-Apr-20 at 00:39

I have a dataframe of daily water chemistry values taken from deployed sensors. I’m trying to calculate rolling 7 day averages of daily maximum values. This in in-situ environmental data, the data can be a bit messy.

Here are the rules for calculating the averages and assigning quality levels:

Data is graded and given a quality value (DQL) for the day (dyDQL).
'A' is high quality, 'B' is medium, and 'E' is poor.
7 day average is calculated at the end of a 7 day period.
Dataset needs only 6 complete days to calculate a 7 day average (Can miss 1 day of data)
If there are at least 6 days worth ‘A’ and ‘B’ graded data and 1 day of ‘E’, discard ‘E’ data and calculate the 7-day average using the 6 days of ‘A’ and ‘B’ data

I have the code working using a loop that loops through each result, creates a new dataframe containing the 7 day window, and then calculates the moving average. See minimal example below.

Note that there are missing dates for the 11th, 16th, 17th, and 18th in this example:

...

ANSWER

Answered 2021-Apr-16 at 23:52

Here's a vectorized approach using slider:slide_index to calculate the high quality and backup quality values, then combine for best available:

Source https://stackoverflow.com/questions/67132165

QUESTION

Doctrine Many-To-Many bulk insert

Asked 2021-Mar-17 at 08:54

I need to do a bulk insert of thousands of records (5k up to 20k). The scenario is User<->n:m<->Group. The list of users is obtained by a complex query with many joins. I have access to the QueryBuilder that generates the list. The simpliest approach to add the users to the group is

...

ANSWER

Answered 2021-Mar-17 at 08:54

Due to doctrine native SQL resctrictions

If you want to execute DELETE, UPDATE or INSERT statements the Native SQL API cannot be used and will probably throw errors. Use EntityManager#getConnection() to access the native database connection and call the executeUpdate() method for these queries.

I've used this solution (executeUpdate is deprecated in favor of executeStatement)

Source https://stackoverflow.com/questions/66658835

QUESTION

My doctrine query returns error with distrinct

Asked 2021-Feb-24 at 14:51

I am trying to return my visits but I need a distinct and not a count. I tried these repository methods but only count works.

Working:

...

ANSWER

Answered 2021-Feb-24 at 14:51

You should try something like this:

Source https://stackoverflow.com/questions/66352579

QUESTION

Doctrine won't generate migration for new entity

Asked 2021-Jan-21 at 22:15

Good day, I have created new entity:

...

ANSWER

Answered 2021-Jan-21 at 22:15

Your XML map your entity as mapped superclass. This is not entity that really exists in database and can be only inherited by others.

Use this XML mapping to map entity that can be persisted and retrieved from DB:

Source https://stackoverflow.com/questions/65830568

QUESTION

Top level EXISTS query using Doctrine ORM

Asked 2021-Jan-19 at 09:26

I have a query such as this in plain SQL (of course the original is more complex, but still simple enough that I'm quite sure that that part is correct at least):

...

ANSWER

Answered 2021-Jan-19 at 09:26

OK, despite feeling a bit wrong, I solved the problem by using a native query. Here it is for reference (still open for improvement though):

Source https://stackoverflow.com/questions/65736214

QUESTION

How to add DATE to doctrine query?

Asked 2020-Dec-09 at 13:53

I have a date field in Y-m-d H:i:s format. Now user can search by using date only. I have query like this:

...

ANSWER

Answered 2020-Dec-09 at 13:51

While you could create your own extension to add the DATE function to Doctrine, or download something like beberlei/DoctrineExtensions to do it for you, in the end is a waste of time. You do not need it.

You could simply do:

Source https://stackoverflow.com/questions/65211210

QUESTION

Doctrine: DQL query without specifying class fully qualified name (FQN)

Asked 2020-Dec-02 at 19:40

Is there a way to write DQL queries without specifying the fully qualified name of the class?

Is there a way to create the following query:

...

ANSWER

Answered 2020-Nov-28 at 20:17

The Doctrine way would be to use entity repositories. If your entity is configured so that it's tied to a repository, e.g.:

Source https://stackoverflow.com/questions/65021834

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install dql

You can install using 'pip install dql' or download it from GitHub, PyPI.
You can use dql like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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