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how to set Foreign Key in database? mariadb

hello, I am new to appian and i don't know how to study for certification exam please  help me . 

I'm going through the Appian Developer training course, following along with the exercises layed out, however today I encounter the following error when I try to allow users who can view the related records. Missing security rules on the related record type. This rule cannot be applied because the related record type for the selected relationship does not have any security rules configured, or it uses a security expression. I don't believe I've done anything that the exercises didn't instruct, so I'm not sure how I got this error or how to resolve.  Any help is appreciated.  Thank you!

I am new to this appain and required some assistance in learning. I have zero knowledge on appian right now. Please suggest.

Hi How can I copy the interface so I do not change it online while I work?

what is if condition for approve/Reject xor gate for approved path going condition?

An error occurred while trying to write to the entity "HCMSCUSTOMERDETAILS" [id=f00b0dce-cd90-40a5-b31b-961142ace14d@4222, type=HCMSCUSTOMERDETAILS (id=4036)] (data store: HCMSCUSTOMERDETAILS). Details: java.lang.IllegalArgumentException: The record to be saved must not be null: TypedValue[it=4036,v=<null>] Data: TypedValue[it=4036,v=<null>] error in Process Model, what is the meaning

Please Provide Solution or way how to do it.  Step 1: Need to get Data from Excel to Database.  Step 2: Based on Data we have column with Category it has four categories for example A, B, C, D. Based on that we need to assign to the particular group in PM. if they did not accept task in 5 min we need to send escaltion to the escaltion groups releted to that.  Step 3:  After that we need to maintain Dshboard, with all the info with each category has how many approved and how many rejected.  Thanks. 

Hi,everyone.... I'm new to appian .I'm little bit confuse between datastore , datatype and recordtype.If someone know about those difference please explain details. my understand is like this...it's right or not?・Datatype is a format of table to create a database.・Datastore is a database and ・Recordtype is common actions for users who will directly interact with data using recordtypes(eg.users can be directly added to data using record type and can be referenced in other interfaces and processes.) Thanks a lot.

Hello In the "Welcome to the Appian Developer Learning Path", "Query Your Data" section: I am finding my screen does not look like the example and available choices (e.g. cons!AA_VEHICLE_HIGH_MILEAGE) are not available I've searched through to figure out if that was embedded or created along the way. There is one section where "low, medium, high mileage" categories are created and they don't seem to be constants (cons!). If I move through the exercise without the correct elements I'm not sure how that will impact further lessons. To this point I have spent more time trying to understand and resolve this than the entirety of the lesson is supposed to take. Any help is most welcome, thanks!

Hi All, In my project i have a requirement  where i have to add a link which is used to minimize and maximize the height of grid, and we are using a!gridlayout for grid. so anyone can help me how to add a link for the same.

When I try to access Appian Online Training with my partner account i am getting below error. Could you please help me out ?

Hello,  I tried to create a sycned record type with view table, but couldn't browse view from the "configure data source". Is it not possible to create synced record with view? Thank you.

how to merge table1 & table 2  date in another table 3 in cloud database in appian?

what is the difference between primary key and forigen key? how to do from two tables please explain?

I have cleared the L1 certificate exam and I have received the certificate in my mailbox. Is there any other place can we download the same? Thanks in advance!

Hi, For the new client project, we have to setup Appian cloud infrastructure including multiple environments (dev, test, uat and prod) and database. Kindly help us in sharing the process for same. Thanks

Hey! Community plz suggest me the alternative of readexcelsheet()

When I exporting the application it does not working so please help me for exporting the application.

I created a DocuSign Connected System and authenticated using Authorize Code Grant. I was able to authenticate successfully and call APIs as well, but after 8 hours when the token expired I did not find any way to refresh it. I had to manually authenticate again. Please help me on how to refresh token once its expired without manually authenticating it again and again.

Hi, Could anyone please tell what is the basic template to be followed in PDF Smart Service. I have tried giving word doc with (###variable### and sentence) it showed the variables list on the setup screen.

I have created WEB API (GET method) and I have table three values and I am requesting the data with GET request so that i want to show that four values. If we give query parameters has three values as input after test request I want  the fourth value should be auto generated in the result. How can i do that?

HI  can someone suggest me how can i come up with the logic to display multipledropdown when i have data like this  UserInputField-multipledropdownfield: Risk Rating > 14; Min year in Business < 3 years (at group level ); Minimum years in “core business” globally (experience) < 3 years; Audited financials < 2 years & 6 months in-house / management financial; Not Normal CBRB classification including related borrowers (if any); AECB Credit Score <650; Any Other Exception first part has to be removed i.e, UserInputField-multipledropdownfield: and after every ; i have show the value as next value in the dropdown

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