Columns
Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||||||
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attribute_value_id | INT UNSIGNED | 10 | √ | null |
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attribute_id | INT UNSIGNED | 10 | null |
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The id of the attribute to which a string value is to be assigned. |
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string_value | VARCHAR | 255 | √ | NULL |
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A unique string value that can be applied as an attribute to a sign interpretation. |
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description | VARCHAR | 1000 | √ | NULL |
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A concise description of the attribute value. |
Indexes
Constraint Name | Type | Sort | Column(s) |
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PRIMARY | Primary key | Asc | attribute_value_id |
fk_att_val_to_att_idx | Performance | Asc | attribute_id |
unique_attribute_and_value | Must be unique | Asc/Asc | attribute_id + string_value |