Basically, I am new to jqgrid and have been tasked with maintaining a database table that has a relational secondary table.
From what I've read the "editoptions dataEvents" is the ticket. What I cannot find is an example of how to implement it. All I've found is code fragments but I am too new to understand how the fragments fit into the overall picture.
A basic and complete example would be wonderful.
Any help would be appreciated.
best regards
Related
currently I am working on an Anylogic Project. I have to simulate and optimize the infrastructure of a supply chain. The Keyfactor for my Simulation is the reduction of the costs transported on the route[Each Kilometer costs a flat rate].
I am struggeling to find the correct methode to let Anylogic read my complete matrix of the size 41 x 17Snip a part of the matrix
I have similar Matrixes with the amount of how much should be delivered and the costs incurred.
I started with importing my Database.
and started creating Dimensions. and thats basically where I started to struggle since I couldnt find any Help on the Examples given in Anylogic.
I simply cant figure out what I have to do that a Parameter can read the whole Arraylist and take the value necessary.
Logic i try to use. Found in the Help sector, Models
You can use the database wizard to write the necessary code to extract whatever data you need from a dbase table.
Load your xls data into a dbase table
Put your cursor into a code field somewhere
Click on the database wizard
Select the data you need
PS: Your data structure is really not in a good format, tbh. It may be a lot easier and more elegant to translate your matrix into a proper relational dbase setup first
I have some doubt about "partition wise join", that includes Oracle:
https://www.youtube.com/watch?v=p9BMyQun84Y
Oracle partition-wise join over multiple partitions
I don't understand this functionality. I have watched videos and I still doesn't understand how to use it.
I understand partitioning but I doesn't understand this. I need a simple example.
Thank you.
If you look at the documentation e.g. here, there's a good detailed and lengthy explanation.
Actually, I have a project to deal with. I'm Asking for help.
My project is in the field of Business intelligence and creating datawarehouses.
I extracted Data that I need (ETL) and then what should I do ?
I am working with MS SQL Server 2014.
How to create my dimensions and my Fact table?
looking for advises
Please do accept my salvation.
This is a big question! Unfortunately, Stack Overflow's Q&A format isn't the best place to answer this. But here are few pointers:
Everything starts with the requirements. Before you write any code, figure out exactly what your data warehouse will be used for (it can also be helpful to work out what your data warehouse will not be used for).
Analyse the raw data. Make sure you know what is and is not available. Be aware of the source systems shortcomings. Example: If your reports need to split your customers by country, is this data available? If so, is it consistently populated (some records have US, others USA, others still America)? Make a plan for dealing with these issues (see data cleansing below).
Prototype your data model. Excel and Power BI are great places to test the design. Once you start using a database it becomes much harder to change. Get it right at the very beginning and your life will be much easier.
Pick an ETL tool. Make sure you understand it, and it plays to the strengths of you and your team. I like SSIS.
Import the raw data into staging tables. This can help to simplify the analysis phase.
Cleanse the data. In a data warehouse, you have 100% control over every row, column and cell. Make use of this fact. Ensure only quality, useful, well-conformed data makes it into your published tables.
Like all projects, planning and administration is the key. Writing code and building tables comes last.
Here are some resources which should help you:
Kimball Group. Ralph Kimball literally wrote the book on data warehousing (see next tip). His company's website contains a few hints and tips.
If you cannot attend a training course, buy a good book. I'd recommend this one. It's a big subject. Blogs and the internet can only teach you so much.
Download and try out Adventure Works DW. This is a sample data warehouse and ETL package, built by Microsoft. It demonstrates some the techniques you can use in SSIS.
My wide data look like this:
What I am trying to accomplish is long:
I have many Score_X's and each score has many items. So the less hard-coding (e.g. Convert data from wide format to long format in SQL) the better.
I have thought about a few ways to do this; unfortunately Hive does not have many features that other SQL implementations have. So first I would appreciate a solution to my problem, and secondly, if anyone knows easy ways to emulate these things in Hive please do share with me.
The pivot function, which Hive doesn't have.
I tried to apply Joe Stefanelli's answer in Selecting all columns that start with XXX using a wildcard?. Hive does not have INFORMATION_SCHEMA either. I was told (also by stackoverflow) that I could get table metadata by first installing MySQL and then detour through MySQL; I don't feel like spending that much effort on a simple task like reshaping a table...
Then I think I can combine the values of Score_A_1, Score_A_2 and Score_A_3 into one Score_A array and then do a LATERAL VIEW EXPLODE like in myui's answer in How to transpose/pivot data in hive?. But I Googled around and could not find a tutorial to do that.
Thanks. Your help is greatly appreciated.
Update:
So the array function will create an array column from multiple columns. Now I am doing the LATERAL VIEW EXPLODE; through hard-coding (i.e., non-dynamic query) I am getting what I want. However it is difficult to believe that there is not a simpler way to perform a data management task as basic as reshaping. Am I missing something fundamental about Hive?
I'm experimenting with Dancer some time, and looking for the right blocks to build my application. Frameworks tend to have flat example applications, dealing with one table at time. So I have no good idea which tools should be used to build a little bit more complex CRUD forms.
Let's say I create a Booklovers app. It should have a form to add/edit books with authors. To cover this I need 3 tables in our database: books, authors and books_to_authors. Which is best way to build a form to add a book with authors?
Note:
It is not known how many authors a book may have, we need dynamic adding of rows.
The authors table may have tens of thousands of records, so a select form element is not suitable.
An author may be missing from our database, we need to add them dynamically, too.
All these dynamic parts needs some AJAX. Is there a good solution to integrate it with form creating tools in Perl? I looked at CGI::FormBuilder and am still looking, but I did not find something that could build forms for 3 joined tables as described. The dynamic client-side part also still needs to be covered.
Are there some best practices for such a pretty simple case?
AJAX is for rendering data in a Web browser, it doesn't affect the back-end data storage.
The books and authors tables have a many-to-many relationship, using ORMs such as DBIx-Class can help.
In the Web form, there is a new book and a collection of authors. At the server side, create a book, then add authors to book.
Browse the DBIx::Class cookbook to get some ideas.
Sorry for not providing a simple answer to solve your problem.
Seems it is somehow too complex question to have straightforward solution.
I stick using templates forms and generete dynamic part with different jQuery plugins.
I don't think it is best way, but have not seen better for now.