I am planning to use material-table. Its a simple table with a column name
I have seen some tutorials how to do CRUD operation using material-table.
But i want to check the name is unique from server side, not on client side.
and pass the error if the name is not unique.
Can we do these things with material table
Related
I am new to SAP-MDG and I am trying to identify how can we store cross reference details in MDG.
I got to know about key mapping but that is not something that I understand.
My requirement is:
I have 10 applications sending data to me each having it's own app id and customer number, I want to store the mapping.
App -id --- Customer number from application ---- sap-id(at our end)
Is this something that can be done without a custom table?
Better place for get answers for your questions - sdn.sap.com (sap mdg community)
you can create this table like a data model (for example via reuse method) and save it in staging area sap mdg
you can use Z-table for store this data
I just started to use Pentaho Kettle for integration. Seems great so far, quite intuitive compared to Talend, which I was also investigating.
I am trying to migrate some customers without their keys. So I have their email addresses.
The customer may already exist in the database, so what I need to do is:
If the customer exists, add it's id to the imported field and continue.
But if the customer doesn't exist I need to get the next Hibernate key from the table Hibernate_Sequences and set it as the id.
But I don't want to always allocate a key, so I want to conditionally execute a step to allocate the next key.
So what I want to do, is in the flow execute the db procedure, which allocates the next key and returns it, only if there's no value in id from the "lookup id" step.
Is this possible?
Just posting my updated flow - so the answer was to use a filter rows component which splits the data on true/false. I really had trouble getting the id out of the database stored proc because of a bug, so I had to use decimal and then convert back to integer (which I also couldn't figure out how to do, so used a javascript component).
Yes it is. As per official documentation (i left only valuable information) "Lookup values are added as new fields onto the stream". So u need just to put step "Filter row" in Flow section and check for "id" which suppose to be added in "Existing Id Lookup" step.
My application is two parts :
an android app that lets the user creates comments on stuff. Each comment has a unique id (a string)
a server with a REST api (json based) that gathers the data. The server generates the unique id.
The android app creates a new comment by POSTing the comment data to the server, minus the unique id (it gets generated by the server upon the comment creation).
The unique id will be used in the subsequent requests (For example : <myserver>/api/v1/comment/<id>)
The question is after the POST, the server needs a way to tell the android app what the id of the newly created comment is.
What is the REST way to do get the new id ?
Note : I would like to avoid to create an extra call to get a new identifier and then to post my comment.
https://www.rfc-editor.org/rfc/rfc2616#section-10.2.2
You respond with a 201 Created status and a Location header containing the URI to the created resource.
just reply to the POST with the id
Scenario 1
In my web application say for there is a screen for adding an employee to system. As soon as user tabs after entering name of the employee, it generates the employee code automatically (which is the next field) based on some logic and already present records in the database.
Now I want to expose rest API for this application so that third party devs can build on top of it. So, I will have a resource called as /Employee which will respond for GET, PUT and DELETE verbs. But when a client needs to autofill the code, which is a GET operation, it will be on what resource? Should I make a new resource /EmployeeCodeFor/{Name} or I should get it on /Employee/{Name}/GenerateCode? If I go with /Employee/{Name}/GenerateCode then what about my resource to GET, PUT and DELETE for Employee i.e. actually /Employee/{Id}?
Scenario 2
Here lets take the case of a stackoverflow post. So lets say the resource would be /Post/{Id}. In the same way as in the previous example it lists me possible duplicate question as soon as I tab out of the Title field.
Again on what URL I should get those possible duplicates?
I can't think of more scenarios just now. But many such kind of scenarios may come up in real life application development. How to implement them in RESTful way?
Update on scenario 1
Code and Id are two different fields. Id is primary key, code can be duplicate across departments just to illustrate. Also to generate a code, name should be provided first. So, if user types a name "FirstName LastName" then server might generate FL003 as code assuming that there are already two more employees with firstname starting from F and lastname starting from L in the said department. Department can be identified based on the logged in user.
One way to allow the server an opportunity to pre-fill a bunch of elements in a new resource is to do
POST /Employees
{with empty body}
=>
201 Created
Location: http://example.org/employee/3443
<Employee Id="3443">
<Code>E1001</Code>
<FirstName></FirstName>
<LastName></LastName>
</Employee>
This gives the server one chance to provide default values. If you are looking for a more interactive way for the server to provide feedback during the input, I have another approach but it will take quite a bit more explaining.
Scenario 1
Let say your employee code is a unique identifier. In this case, to get it, you would allow the user to complete any field for the new employee and then make a POST. The server would generate the code and respond to the POST with a link to /Employee/{generated_code} which is the record for your newly created employee.
A GET on /Employee would return a list of all employees. A GET on /Employee/{a_code} will give you the employee detail.
Scenario 2
You could have some kind of query on the /Post collection like /Post?title_like={question_title}. A GET /Post?title_like=REST How to would return you a list of all questions containing "REST How to".
Hi does any one know how to check if a given DB object (Table/View/SP/Function) is used inside Oracle.
For example to check if the table "A" is used in any SP/Function or View definitions. I am trying to cleanup unused objects in the database.
I tried the query select * from all_source WHERE TEXT like '%A%' (A is the table name). Do you thing it is safe to assume it is not being used if it does not return any results?
From this ASKTOM question:
You'll have to enable auditing and then come back in 3 months to see.
We don't track this information by default -- also, even with auditing, it may be very
possible to have an object that is INDIRECTLY accessed (eg: via a foreign key for
example) that won't show up.
You can try USER_DEPENDENCIES but that won't tell you about objects referenced by code in
client apps or via dynamic sql
There's code in the thread for checking ALL_SOURCE, but it's highlighted that this isn't a silver bullet.