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doc(er): add documentation on UK constraint

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This commit is contained in:
Tom PERRILLAT-COLLOMB
2022-12-15 19:03:00 +00:00
parent 32a8061cc2
commit c7f085a138
2 changed files with 5 additions and 5 deletions
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6
docs/syntax/entityRelationshipDiagram.md
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@@ -234,14 +234,14 @@ The `type` and `name` values must begin with an alphabetic character and may con
#### Attribute Keys and Comments #### Attribute Keys and Comments
Attributes may also have a `key` or comment defined. Keys can be "PK" or "FK", for Primary Key or Foreign Key. And a `comment` is defined by double quotes at the end of an attribute. Comments themselves cannot have double-quote characters in them. Attributes may also have a `key` or comment defined. Keys can be "PK", "FK" or "UK", for Primary Key, Foreign Key or Unique Key. And a `comment` is defined by double quotes at the end of an attribute. Comments themselves cannot have double-quote characters in them.
```mermaid-example ```mermaid-example
erDiagram erDiagram
CAR ||--o{ NAMED-DRIVER : allows CAR ||--o{ NAMED-DRIVER : allows
CAR { CAR {
string allowedDriver FK "The license of the allowed driver" string allowedDriver FK "The license of the allowed driver"
string registrationNumber string registrationNumber UK
string make string make
string model string model
} }
@@ -260,7 +260,7 @@ erDiagram
CAR ||--o{ NAMED-DRIVER : allows CAR ||--o{ NAMED-DRIVER : allows
CAR { CAR {
string allowedDriver FK "The license of the allowed driver" string allowedDriver FK "The license of the allowed driver"
string registrationNumber string registrationNumber UK
string make string make
string model string model
} }

4
packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
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@@ -164,14 +164,14 @@ The `type` and `name` values must begin with an alphabetic character and may con
#### Attribute Keys and Comments #### Attribute Keys and Comments
Attributes may also have a `key` or comment defined. Keys can be "PK" or "FK", for Primary Key or Foreign Key. And a `comment` is defined by double quotes at the end of an attribute. Comments themselves cannot have double-quote characters in them. Attributes may also have a `key` or comment defined. Keys can be "PK", "FK" or "UK", for Primary Key, Foreign Key or Unique Key. And a `comment` is defined by double quotes at the end of an attribute. Comments themselves cannot have double-quote characters in them.
```mermaid-example ```mermaid-example
erDiagram erDiagram
CAR ||--o{ NAMED-DRIVER : allows CAR ||--o{ NAMED-DRIVER : allows
CAR { CAR {
string allowedDriver FK "The license of the allowed driver" string allowedDriver FK "The license of the allowed driver"
string registrationNumber string registrationNumber UK
string make string make
string model string model
} }