Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| id | INT | 10 | √ | null |
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| userId | INT | 10 | null |
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| year | INT | 10 | null |
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| month | INT | 10 | null |
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| usageCount | INT | 10 | √ | NULL |
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| instance | VARCHAR | 100 | √ | NULL |
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Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| PRIMARY | Primary key | Asc | id |
| instance | Must be unique | Asc/Asc/Asc/Asc | instance + userId + year + month |
| year | Performance | Asc/Asc | year + month |
Relationships
Close relationships within degrees of separation
