Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments |
|---|---|---|---|---|---|---|---|---|
| id | bigserial | 19 | √ | nextval('app_quiz_statistics_id_seq'::regclass) |
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| hashcode | varchar | 40 | ''::character varying |
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| whichattempts | int2 | 5 | null |
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| timemodified | int8 | 19 | null |
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| firstattemptscount | int8 | 19 | null |
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| highestattemptscount | int8 | 19 | null |
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| lastattemptscount | int8 | 19 | null |
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| allattemptscount | int8 | 19 | null |
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| firstattemptsavg | numeric | 15,5 | √ | null |
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| highestattemptsavg | numeric | 15,5 | √ | null |
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| lastattemptsavg | numeric | 15,5 | √ | null |
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| allattemptsavg | numeric | 15,5 | √ | null |
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| median | numeric | 15,5 | √ | null |
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| standarddeviation | numeric | 15,5 | √ | null |
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| skewness | numeric | 15,10 | √ | null |
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| kurtosis | numeric | 15,5 | √ | null |
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| cic | numeric | 15,10 | √ | null |
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| errorratio | numeric | 15,10 | √ | null |
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| standarderror | numeric | 15,10 | √ | null |
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Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| app_quizstat_id_pk | Primary key | Asc | id |
Relationships
Close relationships within degrees of separation
