Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| message_id | INT | 10 | √ | null |
|
|
unique identifier assigned by Koha |
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| borrowernumber | INT | 10 | null |
|
|
foreign key linking this message to the borrowers table |
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| branchcode | VARCHAR | 10 | √ | NULL |
|
|
foreign key linking the message to the branches table |
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| message_type | VARCHAR | 1 | null |
|
|
whether the message is for the librarians (L) or the patron (B) |
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| message | MEDIUMTEXT | 16777215 | null |
|
|
the text of the message |
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| message_date | TIMESTAMP | 19 | current_timestamp() |
|
|
the date and time the message was written |
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| manager_id | INT | 10 | √ | NULL |
|
|
creator of message |
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| patron_read_date | TIMESTAMP | 19 | √ | NULL |
|
|
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| PRIMARY | Primary key | Asc | message_id |
| messages_borrowernumber | Performance | Asc | borrowernumber |
| messages_ibfk_1 | Performance | Asc | manager_id |
Relationships
Close relationships within degrees of separation
