aceql-http | AceQL HTTP is a framework of REST like http APIs | SQL Database library
kandi X-RAY | aceql-http Summary
kandi X-RAY | aceql-http Summary
AceQL HTTP is a library of REST like APIs that allows you access to remote SQL databases over HTTP from any device that supports HTTP. This software has been designed to handle heavy traffic in production environments.
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Top functions reviewed by kandi - BETA
- Prints the ResultSet
- Compute the max width for a result set
- Fills the header with blanks
- Fills the value of a result set column with filler
- Analyze the SQL statement
- Initialises the results
- Checks if sql string contains equal values
- Analyzes the SQL tokens
- Recursively search files from a list of files
- Login
- Validates the parameters
- Creates the necessary table information
- Entry point to the sample CSV file
- Executes an UPDATE statement
- Extract a connection from database
- Decodes the java type and returns the casted object
- Encrypt password
- Generates a JSON string
- This method adds a LIMIT clause to SQLOrder
- Creates a PostgreSQL example
- Performs the login
- Fill the result set meta data
- Called when a connection is disconnected
- Error handling
- Build the actual elements
- This method is responsible for uploading a blob to a user directory
aceql-http Key Features
aceql-http Examples and Code Snippets
@Secured({ "ROLE_USER", "RUN_AS_REPORTER" })
@RequestMapping
@ResponseBody
public String tryRunAs() {
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
return "Current User Authorities inside th
@Bean
public AuthenticationProvider runAsAuthenticationProvider() {
RunAsImplAuthenticationProvider authProvider = new RunAsImplAuthenticationProvider();
authProvider.setKey("MyRunAsKey");
return authProvider;
}
Community Discussions
Trending Discussions on SQL Database
QUESTION
Not really sure what caused this but most likely exiting the terminal while my rails server which was connected to PostgreSQL database was closed (not a good practice I know but lesson learned!)
I've already tried the following:
- Rebooting my machine (using MBA M1 2020)
- Restarting PostgreSQL using homebrew
brew services restart postgresql
- Re-installing PostgreSQL using Homebrew
- Updating PostgreSQL using Homebrew
- I also tried following this link but when I run
cd Library/Application\ Support/Postgres
terminal tells me Postgres folder doesn't exist, so I'm kind of lost already. Although I have a feeling that deleting postmaster.pid would really fix my issue. Any help would be appreciated!
ANSWER
Answered 2022-Jan-13 at 15:19My original answer only included the troubleshooting steps below, and a workaround. I now decided to properly fix it via brute force by removing all clusters and reinstalling, since I didn't have any data there to keep. It was something along these lines, on my Ubuntu 21.04 system:
QUESTION
I am using Go's MongodDB driver (https://pkg.go.dev/go.mongodb.org/mongo-driver@v1.8.0/mongo#section-documentation) and want to obtain the version of the mongoDB server deployed.
For instance, if it would been a MySQL database, I can do something like below:
...ANSWER
Answered 2022-Mar-26 at 08:04The MongoDB version can be acquired by running a command, specifically the buildInfo
command.
Using the shell, this is how you could do it:
QUESTION
What am I trying to do?
Django does not support setting enum data type in mysql database. Using below code, I tried to set enum data type.
Error Details
_mysql.connection.query(self, query) django.db.utils.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'NOT NULL,
created_at
datetime(6) NOT NULL,user_id
bigint NOT NULL)' at line 1")
Am I missing anything?
Enumeration class with all choices
...ANSWER
Answered 2021-Sep-29 at 19:39You can print out the sql for that migration to see specifically whats wrong, but defining db_type
to return "enum"
is definitely not the right way to approach it.
QUESTION
I am having difficulties to scaffold an existing MySQL database using EF core. I have added the required dependencies as mentioned in the oracle doc:
...ANSWER
Answered 2021-Dec-12 at 10:11I came across the same issue trying to scaffold an existing MySQL database. It looks like the latest version of MySql.EntityFrameworkCore (6.0.0-preview3.1) still uses the EFCore 5.0 libraries and has not been updated to EFCore 6.0.
It also seems Microsoft.EntityFrameworkCore.Diagnostics was last implemented in EFCore 5 and removed in 6.
When I downgraded all the packages to the 5 version level, I was able to run the scaffold command without that error.
QUESTION
I'm using Lambda with RDS Proxy to be able to reuse DB connections to a MySQL database.
Should I close the connection after executing my queries or leave it open for the RDS Proxy to handle?
And if I should close the connection, then what's the point of using an RDS Proxy in the first place?
Here's an example of my lambda function:
...ANSWER
Answered 2021-Dec-11 at 18:10The RDS proxy sits between your application and the database & should not result in any application change other than using the proxy endpoint.
Should I close the connection after executing my queries or leave it open for the RDS Proxy to handle?
You should not leave database connections open regardless of if you use or don't use a database proxy.
Connections are a limited and relatively expensive resource.
The rule of thumb is to open connections as late as possible & close DB connections as soon as possible. Connections that are not explicitly closed might not be added or returned to the pool. Closing database connections is being a good database client.
Keep DB resources tied up with many open connections & you'll find yourself needing more vCPUs for your DB instance which then results in a higher RDS proxy price tag.
And if I should close the connection, then what's the point of using an RDS Proxy in the first place?
The point is that your Amazon RDS Proxy instance maintains a pool of established connections to your RDS database instances for you - it sits between your application and your RDS database.
The proxy is not responsible for closing local connections that you make nor should it be.
It is responsible for helping by managing connection multiplexing/pooling & sharing automatically for applications that need it.
An example of an application that needs it is clearly mentioned in the AWS docs:
Many applications, including those built on modern serverless architectures, can have a large number of open connections to the database server, and may open and close database connections at a high rate, exhausting database memory and compute resources.
To prevent any doubt, also feel free to check out an AWS-provided example that closes connections here (linked to from docs), or another one in the AWS Compute Blog here.
QUESTION
I have a PostgreSQL database hosted on Heroku which is throwing me this error that I can't wrap my head around.
...ANSWER
Answered 2022-Feb-13 at 22:21AUTOINCREMENT
is not a valid option for CREATE TABLE
in Postgres
You can use SERIAL
or BIGSERIAL
:
QUESTION
Our stack is nodejs with MySQL we're using MySQL connections pooling our MySQL database is managed on AWS aurora . in case of auto failover the master DB is changed the hostname stays the same but the connections inside the pool stays connected to the wrong DB. The only why we found in order to reset the connection is to roll our servers.
this is a demonstration of a solution I think could solve this issue but I prefer a solution without the set interval
...ANSWER
Answered 2022-Feb-04 at 12:22Instead of manually monitoring the DB health, as you have also hinted, ideally we subscribe to failover events published by AWS RDS Aurora.
There are multiple failover events listed here for the DB cluster: Amazon RDS event categories and event messages
You can use and test to see which one of them is the most reliable in your use case for triggering poolCluster.end()
though.
QUESTION
I am trying to run a server with a MySQL Database, however I keep getting this huge error and I am not sure why.
...ANSWER
Answered 2021-Aug-11 at 14:38Maybe a solution. Source : https://dba.stackexchange.com/questions/8239/how-to-easily-convert-utf8-tables-to-utf8mb4-in-mysql-5-5
Change your CHARACTER SET AND COLLATE to utf8mb4.
For each database:
QUESTION
I am following this tutorial on migrating data from an oracle database to a Cloud SQL PostreSQL instance.
I am using the Google Provided Streaming Template Datastream to PostgreSQL
At a high level this is what is expected:
- Datastream exports in Avro format backfill and changed data into the specified Cloud Bucket location from the source Oracle database
- This triggers the Dataflow job to pickup the Avro files from this cloud storage location and insert into PostgreSQL instance.
When the Avro files are uploaded into the Cloud Storage location, the job is indeed triggered but when I check the target PostgreSQL database the required data has not been populated.
When I check the job logs and worker logs, there are no error logs. When the job is triggered these are the logs that logged:
...ANSWER
Answered 2022-Jan-26 at 19:14This answer is accurate as of 19th January 2022.
Upon manual debug of this dataflow, I found that the issue is due to the dataflow job is looking for a schema with the exact same name as the value passed for the parameter databaseName
and there was no other input parameter for the job using which we could pass a schema name. Therefore for this job to work, the tables will have to be created/imported into a schema with the same name as the database.
However, as @Iñigo González said this dataflow is currently in Beta and seems to have some bugs as I ran into another issue as soon as this was resolved which required me having to change the source code of the dataflow template job itself and build a custom docker image for it.
QUESTION
I have to move a large Odoo(v13) database almost 1.2TB(DATABASE+FILESTORE), I can't use the UI for that(keeps loading for 10h+ without a result) and I dont want to only move postgresql database so I need file store too, What should I do? extract db and copy past the filestore folder? Thanks a lot.
...ANSWER
Answered 2022-Jan-14 at 16:59You can move database and filestore separately. Move your Odoo PostgreSQL database with normal Postgres backup/restore cycle (not the Odoo UI backup/restore), this will copy the database to your new server. Then move your Odoo filestore to new location as filesystem level copy. This is enough to get the new environment running.
I assume you mean moving to a new server, not just moving to a new location on same filesystem on the same server.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install aceql-http
Download and Installation Linux / Unix Installation Update the PATH (Optional) Testing server installation Windows Installation
Quickstart The AceQL Manager servlet The aceql-server.properties file Tomcat JDBC Connection Pool Section User Authentication Section The WebServiceUserAuthenticator usage SQL Firewall Managers Section The CsvRulesManager SQL Firewall Manager SSL Configuration Section Sample aceql-server.properties file Starting/Stopping the AceQL Web Server from Linux/Unix Add your JDBC driver to the AceQL installation Starting the AceQL Web Server Examples Starting the AceQL Web Server on port 9090 Starting the AceQL Web Server on port 9091 Using SSL from the client side Stopping the AceQL Web Server Linux: running the AceQL Web server as a service Starting/Stopping the AceQL WebServer from Windows
Advanced Usage Development Environment AceQL Servlet Name Configuration Advanced Connection Pool Management Advanced Authentication Configuration Tomcat HTTP Connector Configuration ThreadPoolExecutor Configuration Session Management SessionConfigurator interface Session management default implementation Session management using JWT Activating JwtSessionConfigurator Creating your own session management Stateful and Stateless Modes Stateful Mode Stateless Mode Advanced Firewall Configuration Update Listeners Configuration Encrypting Properties in the aceql-server.properties file Running the PropertiesEncryptor class Interacting with the JDBC Pool at runtime Running the AceQL Web Server Running the AceQL Web Server without Windows Desktop Starting/Stopping the AceQL WebServer from a Java program Running AceQL HTTP in a Java EE servlet container Installation AceQL servlet configuration in web.xml Testing the servlet configuration
AceQL internals Data transport Transport format Content streaming and memory management Managing temporary files
Open a shell session and make sure java binary is in the PATH by typing. java -version on the command line. Add java to your PATH if the command does not display Java version.
Download AceQL Windows Installer. Because the software installs and runs a Windows Service, you must be logged as a Windows Administrator to install AceQL.
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