Is there any hack || way in V-language default ORM to support MongoDB?
Currently, I'm able to connect PostgreSQL as it supports it as a default DB. This is just the RDBMS part, But what if we want to connect NoSQL?
Also, I'm not able to connect MySQL as well as other RDBMS databases. I'll also share my thoughts in the answer section(If I get some). If you got any hack / Ideas then please post it below. As this language is new and the community is growing, Your answer and thoughts will be helpful to others as well.
Since your answer, Vlang now has an official driver for MongoDB.
By now (dec 2020) there are no way to connect to a mongodb database, as of the page of the project on github. The support for other RDBMS is planned, but NoSQL databases have no plan to be added. But, if there are source code, there are a way todo, and maybe somebody can contribute adding this feature ;-).
Related
Does Mondrian support nosql db like mongodb in the current version. I read some blogs and bugs related to the same.
Any help is appreciated.
thanks
Lokesh
please read the following Blog from Julian Hyde, creator of Mondrian
http://julianhyde.blogspot.com.es/2014/03/improvements-to-optiqs-mongodb-adapter.html
Here you can see Julian have been working on a new approach that converts even complex SQL queries into MongoDB Queries behind the scenes.
Mondrian does not directly support MongoDB at the moment. MongoDB does not have a JDBC implementation.
There are a few options. One of them can be setup if you have access to a Pentaho Data Integration server. You can use a thin JDBC implementation which will allow Mondrian to access a SQL to Mongo bridge.
There are certainly other ways to set this up, since there are a lot of data federation engines out there.
Not directly as far as I know. Maybe someone is working on a dialect, is that even possible..? Interesting question though... May be worth linking the blogs you found so far?
One solution however could be to use the kettle jdbc driver, this driver works with mondrian and then the other end can be any ETL process. So you could use a mongodb input step etc.
There is Apache Drill. You can query MongoDB through standard SQL and Drill has a JDBC driver. So maybe it is possible that Mondrian uses this driver.
Uwe
I'd like to view and possibly edit tables for PostgreSQL visually like phpMyAdmin, where you can see the list of tables, and fields and individual rows for a table. Is there any utility that can do this?
Forgive me if this is actually possible in pgAdmin III, but I couldn't figure out any way to see tables visually in pgAdmin. I have PostgreSQL 8.4 (I actually didn't install it myself, it was installed by another piece of software that utilizes it)
phpPgAdmin might work for you, if you're already familiar with phpMyAdmin.
Please note that development of phpPgAdmin has moved to github per this notice but the SourceForge link above is for historical / documentation purposes.
But really there are dozens of tools that can do this.
I would also highly recommend Adminer - http://www.adminer.org/
It is much faster than phpMyAdmin, does less funky iframe stuff, and supports both MySQL and PostgreSQL.
pgAdmin 4 is a powerful and popular web-based database management tool for PostgreSQL - http://www.pgadmin.org/
Azure Data Studio with Postgres addin is the tool of choice to manage postgres databases for me. Check it out.
https://learn.microsoft.com/en-us/sql/azure-data-studio/quickstart-postgres?view=sql-server-ver15
Does anyone know if it's good solution to use SQLite in multi-thread environment.
I want to replace SQL Server with more simple and built-in database as there is no need to feed such big server DB. The supposed max size of DB would be 4 gigabyte after 4-5 years of usage. Is it normal for built-in DB? Could it affect performance?
It depends on the type of queries you would use. If the queries are simple selects with plain joins, then SQLite could do fine but I think you would still be better off with e. g. Firebird 2.5 when the stable release gets out (RC3 is available now). You would have somewhat richer SQL to work with. I don't know how much bulk loads are important for you, but neither SQLite nor Firebird are very strong in this area. If you need good bulk insert performance and low cost, then you should look at PostgreSQL or MySQL. There is also a very interesting looking database I happened to stumble upon recently called CUBRID. I have only installed it so far, so I can't tell how good or bad it is but it certainly seems worth a look.
You might also want to look at this wikipedia article:
http://en.wikipedia.org/wiki/Comparison_of_relational_database_management_systems
I don't know which distro you're talking about here. I've only used SQLite.NET and I know it works well on multithreaded applications.
It can also be deployed on client-server systems so you need not worry at all.
Considering Vinko's statement of 'real' databases, you can ignore him. SQLite is really worth it's salt.
If you're working with .NET, you might find this link useful:
http://sqlite.phxsoftware.com
According to the documentation SQLite is thread safe but there are caveats.
You can use SQLite in a multithreaded environment, but if and only if you build a special version of it (and find out if the library you'll be using it supports it and tweak it if it doesn't.) So, assuming your library supports multithreaded SQLite, if you really need a high level of concurrency to the database you may prefer to use a 'real' database. Be it MSSQL or any other falls out of the scope of the question.
Consider MySQL and SQL Server Express, for example.
If your concurrency level is low, SQLite can cope with it.
I would also suggest you to take a look at the CUBRID database. It has nice optimizations for Web applications and it is easy to learn.
Can someone recommend a great IDE/Database Developer Tool for Postgres 8.4. We are currently using EMS SQL Manager but it has so many bugs and shortcomings that its getting on my nerves. I reported the bugs to EMS but they have not been fixed yet.
I wonder what do people use for PostgresSQL development? Windows/Linux, commercial/free, standalone/eclipse plug-in, it does not matter as much. I just want a reliable tool that works and does not blow up in my face.
On PostgreSQL DB we do and would like to have IDE support for.
Tables, views, indexes, triggers
SQL, plpgsql, and python procedures that return single values, set of values or tables
SQL query and performance monitoring
DB role management
Good transaction support straight from GUI as well as support for BEGIN, COMMIT, etc
Any recommendations are welcome.
Edit: After many months we are still using EMS SQL Manager. I got used to certain shortcomings, some bug were fixed. I tried every possible PostgreSQL management program I could get my hands on and still in my opinion EMS SQL Manager is still the best.
pgAdmin is a popular one. It's free, and it runs on Windows and Linux. It's been a while since I have used it but I found it to be quite stable. Wasn't fond of the procedure code editor - it worked, I just didn't like it (but now I can't remember why, it was probably a minor thing).
Lightning Admin, commercial, postgreSQL and mysql, $50. The developer is very pro postgreSQL.
http://lightningadmin.com/
Does anyone know tools which look at a MySQL database, show you all the tables graphically and allow you to create complicated JOIN statements via drag-and-drop?
Before you buy anything, see if the free, official MySQL's GUI tools (specifically the MySQL Query Browser) will work for you.
Personally, I'm fairly comfortable interacting with MySQL's command line interface and haven't used their GUI tools very much, but I just downloaded Query Browser and it seems like it does exactly what you're looking for.
Also, check out "Building Queries Visually in MySQL Query Browser" for a nice tour of MySQL Query Browser.
As an update, the MySQL Tools collection is no longer supported, and has been replaced by MySQL Workbench. The documentation can be found here: http://dev.mysql.com/doc/workbench/en/index.html and you can download it here: http://dev.mysql.com/downloads/workbench/
Edit: stumbled across this today too, a good beginner tutorial for mysql workbench -> http://net.tutsplus.com/tutorials/databases/visual-database-creation-with-mysql-workbench/
EMS SQL Manager for MySQL has query constructor. Can't recall about joins, but they should be supported.