Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| id | INT | 10 | √ | null |
|
|
Primary id for this table. This uniquely identifies the row. |
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| dataset_id | INT | 10 | null |
|
|
Foreign key to datasets(..//tables/datasets.html) (datasets(..//tables/datasets.html).id). |
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| nr_of_data_objects | BIGINT UNSIGNED | 20 | null |
|
|
The number of data objects contained in this dataset. |
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| nr_of_data_points | BIGINT UNSIGNED | 20 | null |
|
|
The number of individual data points contained in this dataset. |
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| created_on | DATETIME | 19 | √ | CURRENT_TIMESTAMP |
|
|
When the record was created. |
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| updated_on | TIMESTAMP | 19 | √ | CURRENT_TIMESTAMP |
|
|
When the record was updated. This may be different from the created on date if subsequent changes have been made to the underlying record. |
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| PRIMARY | Primary key | Asc | id |
| datasetmeta_ibfk_datasets | Performance | Asc | dataset_id |