DOO_INFERRED_ITEM_REL
Stores computed product relationship metrics by Business Unit for recommendations.
Details
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Schema: FUSION
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Object owner: DOO
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Object type: TABLE
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Tablespace: FUSION_TS_TX_DATA
Primary Key
| Name | Columns |
|---|---|
|
DOO_INFERRED_ITEM_REL_PK |
BUCKET_NUMBER, REL_ID |
Columns
| Name | Datatype | Length | Precision | Not-null | Comments |
|---|---|---|---|---|---|
| REL_ID | NUMBER | 18 | Yes | Unique Identifier for the inferred product relationship. | |
| BUCKET_NUMBER | NUMBER | 4 | Yes | Numeric identifier for the time bucket used to partition and retain summary data. | |
| ITEM_ID_1 | NUMBER | 18 | Yes | Identifier for the First Item in the inferred pair. | |
| ITEM_NUMBER_1 | VARCHAR2 | 300 | Item number for first Item in the inferred pair. | ||
| ITEM_ID_2 | NUMBER | 18 | Yes | Identifier for the Second Item in the inferred pair. | |
| ITEM_NUMBER_2 | VARCHAR2 | 300 | Item number for second Item in the inferred pair. | ||
| PAIR_COUNT | NUMBER | 10 | Number of distinct orders containing both items. | ||
| ORDERS_WITH_ITEM_1 | NUMBER | 10 | Number of orders containing first Item. | ||
| ORDERS_WITH_ITEM_2 | NUMBER | 10 | Number of orders containing second Item. | ||
| TOTAL_ORDERS | NUMBER | 10 | The total number of orders placed in the business unit within the specified time period. | ||
| SUPPORT | NUMBER | Probability of orders containing both Item 1 and Item 2. | |||
| CONFIDENCE_ITEM_1_TO_2 | NUMBER | Probability that an order containing Item 1 also contains Item 2. | |||
| CONFIDENCE_ITEM_2_TO_1 | NUMBER | Probability that an order containing Item 2 also contains Item 1. | |||
| LIFT | NUMBER | Measures how much more likely Item 2 is purchased when Item 1 is in the same order. | |||
| CREATION_DATE | TIMESTAMP | Yes | Who column: indicates the date and time of the creation of the row. | ||
| CREATED_BY | VARCHAR2 | 64 | Yes | Who column: indicates the user who created the row. | |
| LAST_UPDATED_BY | VARCHAR2 | 64 | Yes | Who column: indicates the user who last updated the row. | |
| LAST_UPDATE_DATE | TIMESTAMP | Yes | Who column: indicates the date and time of the last update of the row. | ||
| LAST_UPDATE_LOGIN | VARCHAR2 | 32 | Who column: indicates the session login associated to the user who last updated the row. | ||
| OBJECT_VERSION_NUMBER | NUMBER | 9 | Yes | Used to implement optimistic locking. This number is incremented every time that the row is updated. The number is compared at the start and end of a transaction to detect whether another session has updated the row since it was queried. |
Indexes
| Index | Uniqueness | Tablespace | Columns |
|---|---|---|---|
| DOO_INFERRED_ITEM_REL_N1 | Non Unique | Default | BUCKET_NUMBER, ITEM_ID_1, "LIFT", CONFIDENCE_ITEM_1_TO_2 |
| DOO_INFERRED_ITEM_REL_N2 | Non Unique | Default | BUCKET_NUMBER, ITEM_ID_2, "LIFT", CONFIDENCE_ITEM_2_TO_1 |
| DOO_INFERRED_ITEM_REL_U1 | Unique | Default | BUCKET_NUMBER, REL_ID |