https://github.com/rabestro/sap-cds-erd

AWK script to create a ER diagram for SAP Cloud Application Programming Model
https://github.com/rabestro/sap-cds-erd

cds entity-relationship-diagram erdiagram mermaid-diagrams plantuml sap sap-cloud-platform script

Last synced: about 2 months ago
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AWK script to create a ER diagram for SAP Cloud Application Programming Model

• Host: GitHub
• URL: https://github.com/rabestro/sap-cds-erd
• Owner: rabestro
• License: apache-2.0
• Created: 2023-01-11T17:18:58.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-08-20T08:07:20.000Z (4 months ago)
• Last Synced: 2024-08-20T10:08:42.949Z (4 months ago)
• Topics: cds, entity-relationship-diagram, erdiagram, mermaid-diagrams, plantuml, sap, sap-cloud-platform, script
• Language: CAP CDS
• Homepage:
• Size: 59.6 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.adoc
  • License: LICENSE

Awesome Lists containing this project

README

        
= SAP CDS Entity Relationship Diagrams

:hide-uri-scheme:

The small AWK script generate https://mermaid.js.org/[mermaid] Entity Relationship diagrams from SAP Cloud Application Programming Model files.

== How to run script

[source,shell]

----

gawk -f src/cds2erd.awk db/* > bookstore.mermaid

----

Alternatively, you can move the script to the bin directory and make it executable:

[source,shell]

----

chmod +x cds2erd.awk

----

In this case you can call the script without specifying an interpreter:

[source,shell]

----

cds2erd.awk schema.cds > schema.mermaid

----

== Sample generated ER diagram

Below is the database schema from the project https://github.com/SAP-samples/cloud-cap-samples/[SAP Cloud CAP Samples Bookstore]

[source,mermaid]

----

erDiagram

    Books {

        String title 

        String descr 

        Integer stock 

        Decimal price 

        Currency currency 

        Decimal rating 

        TechnicalBooleanFlag isReviewable 

    }

    Authors {

        String name 

        Date dateOfBirth 

        Date dateOfDeath 

        String placeOfBirth 

        String placeOfDeath 

    }

    Genres {

        String name 

        String descr 

        Integer ID PK

    }

    Notes {

        String note 

    }

    Orders {

        String OrderNo 

        User buyer 

        Decimal total 

        Currency currency 

    }

    OrderItems {

        Integer quantity 

        Decimal amount 

    }

    Reviews {

        Rating rating 

        String title 

        String text 

    }

    Orders |o--o{ OrderItems : ""

    OrderItems |o--o| Books : ""

    Genres }o--o| Genres : ""

    Books |o--o{ Reviews : ""

    Books |o--o| Genres : ""

    Books }o--o| Authors : ""

----