I'd like to ask a few questions about primary keys:
1. Once you choose a PK (primary key) generation method, is it impossible to change it later on?
2. I wanted to include the class name when creating the PK as shown below, but it seems I can't use the class name because it's metadata at the time of creation. Does anyone know how I can work around this?
3. Is it possible to deploy multiple models to a single data source?
Best Answer
A
Alexia SIMOND
said
about 1 month ago
Hello Holly,
Here are a few elements regarding your questions:
1. Once you choose a PK (primary key) generation method, is it impossible to change it later on?
> Yes, it can be change, by right clicking on the entity, then alter entity.
> But please note that if done, the best practice would be to reprocess the records inside this entity so that every records has the same PK.
2. I wanted to include the class name when creating the PK as shown below, but it seems I can't use the class name because it's metadata at the time of creation. Does anyone know how I can work around this?
> When do you have this error? Because I tested this with an integration via authoring in the UI and it is working fine.
> If you want to dig on this error, feel free to open a ticket.
3. Is it possible to deploy multiple models to a single data source?
Even though there is no hard limit, it is not recommended to do so.
A data location is dedicated to one model edition at a time, as per mentioned in our documentation:
1. Once you choose a PK (primary key) generation method, is it impossible to change it later on?
> Yes, it can be change, by right clicking on the entity, then alter entity.
> But please note that if done, the best practice would be to reprocess the records inside this entity so that every records has the same PK.
2. I wanted to include the class name when creating the PK as shown below, but it seems I can't use the class name because it's metadata at the time of creation. Does anyone know how I can work around this?
> When do you have this error? Because I tested this with an integration via authoring in the UI and it is working fine.
> If you want to dig on this error, feel free to open a ticket.
3. Is it possible to deploy multiple models to a single data source?
Even though there is no hard limit, it is not recommended to do so.
A data location is dedicated to one model edition at a time, as per mentioned in our documentation:
Holly LEE
I'd like to ask a few questions about primary keys:
1. Once you choose a PK (primary key) generation method, is it impossible to change it later on?
2. I wanted to include the class name when creating the PK as shown below, but it seems I can't use the class name because it's metadata at the time of creation. Does anyone know how I can work around this?
SEMQL: 'CONCAT(SUBSTR(UPPER(ClassName),1,1), LPAD(SEM_NUMBER_TO_CHAR(LENGTH(ClassName)),2,'0'), SUBSTR(UPPER(ClassName),LENGTH(ClassName),LENGTH(ClassName))) || AUTO_INCREMENT()'
3. Is it possible to deploy multiple models to a single data source?
Hello Holly,
Here are a few elements regarding your questions:
1. Once you choose a PK (primary key) generation method, is it impossible to change it later on?
> Yes, it can be change, by right clicking on the entity, then alter entity.
> But please note that if done, the best practice would be to reprocess the records inside this entity so that every records has the same PK.
2. I wanted to include the class name when creating the PK as shown below, but it seems I can't use the class name because it's metadata at the time of creation. Does anyone know how I can work around this?
> When do you have this error? Because I tested this with an integration via authoring in the UI and it is working fine.
> If you want to dig on this error, feel free to open a ticket.
3. Is it possible to deploy multiple models to a single data source?
Even though there is no hard limit, it is not recommended to do so.
A data location is dedicated to one model edition at a time, as per mentioned in our documentation:
https://www.semarchy.com/doc/semarchy-xdm/xdm/latest/Manage/deploy/data-locations.html
Hope that helps.
Alexia SIMOND
Hello Holly,
Here are a few elements regarding your questions:
1. Once you choose a PK (primary key) generation method, is it impossible to change it later on?
> Yes, it can be change, by right clicking on the entity, then alter entity.
> But please note that if done, the best practice would be to reprocess the records inside this entity so that every records has the same PK.
2. I wanted to include the class name when creating the PK as shown below, but it seems I can't use the class name because it's metadata at the time of creation. Does anyone know how I can work around this?
> When do you have this error? Because I tested this with an integration via authoring in the UI and it is working fine.
> If you want to dig on this error, feel free to open a ticket.
3. Is it possible to deploy multiple models to a single data source?
Even though there is no hard limit, it is not recommended to do so.
A data location is dedicated to one model edition at a time, as per mentioned in our documentation:
https://www.semarchy.com/doc/semarchy-xdm/xdm/latest/Manage/deploy/data-locations.html
Hope that helps.
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