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| Options | Description | ||||||||||||||||||||||||||||||||
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| Numeric | Indicates whether the table column holds numeric values. This is normally only relevant for Fact tables. It does not affect the physical table definition but rather provides input to the view ws_admin_v_dim_col which can be used to assist in the population of an end user tool's end user layer. The use of this field is not relevant unless it can be utilized by the end-user tools. | ||||||||||||||||||||||||||||||||
| Additive | Indicates whether the table column holds values that are additive. This implies that the column can be summed when performing data grouping in a query. This is normally only relevant for fact tables. It does not affect the physical table definition, but rather provides input to the view ws_admin_v_dim_col which can be used to assist in the population of an end user tool's end user layer. The use of this field is not relevant unless it can be utilized by the end user tools. | ||||||||||||||||||||||||||||||||
| Attribute | Indicates whether the table column holds values that are descriptive, and/or are used for grouping/summing. An attribute is defined as a non-factual column. For example, we may have an order number, or a invoice number stored in the Fact table. These columns are considered attributes, rather than facts. This check-box is therefore normally only relevant for fact tables. This check-box does not affect the physical table definition but rather provides input to the view ws_admin_v_dim_col which can be used to assist in the population of an end user tools end user layer. The use of this field is not relevant unless it can be utilized by the end-user tools. | ||||||||||||||||||||||||||||||||
| Business Key | Indicates whether the column is part of the BUSINESS key, which is defined during the update procedure build. [Normally maintained automatically]. Multiple columns can form the primary business key. | ||||||||||||||||||||||||||||||||
| Key Type | Key type that is assigned and used when generating the table's update procedure and indexes. [Normally maintained automatically]. It can be altered here, but this should only be done if the consequences are fully understood and tested. The supported values are:
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| Hash Key Sources | This field is only displayed for Hash key types. Displays the hash source columns that are used to generate the selected Hub, Link, or Change hash key. | ||||||||||||||||||||||||||||||||
| Hash Key Source For | This field is only displayed for Hash key types. Displays the hash key columns that use the displayed hash key sources. | ||||||||||||||||||||||||||||||||
| Multi-Active Key Type | The value is only 'Natural' or 'Sequence' based on the Multi-Active key type. | ||||||||||||||||||||||||||||||||
| Multi-Active Key Source(s) | Lists the key column for Multi-Active Natural Key or the sort columns for Multi-Active Sequence Key. |
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| Options | Description |
|---|---|
| Source Table | Identifies the source table where the column's data comes from. This source table is normally a Load table or a Dimension table within the data warehouse. If the column was sourced from multiple tables, then the normal practice is to record one of the tables in this field and a comment listing all of the other tables in the Source strategy field. This field is used when generating a procedure to update the Stage table. It is also used in the trackback diagrams and the documentation. |
| Source Column | Identifies the source column where the column's data comes from. Such a column is normally a load table column, which in turn may have been a transformation or the combination of multiple columns. This may also be a dimensional key where a dimension is being joined. |
| Source Data Type | Identifies the source column's data type. [Read-only]. |
| Transformation | Refer to Stage Table Column Transformations for details. [Read-only]. |
| Join | Indicates whether the table column is used in a table join. [Normally maintained automatically but can be optionally changed to override the default join logic used in the generated update procedure]. The Source table and Source column fields will provide the Dimension table's side of the join. The options for this field are False, True, Manual, and Pre-Join. Setting this field to Manual, changes the way the Dimension table is looked up during the Stage table update procedure build. It enables you to join the dimension manually in the Source Join wizard (used to build the 'Where' clause). The usual dialog for matching the dimension business key to a column or columns in the Stage table is not displayed, if this option is enabled. Setting this field to Pre Join activates the Pre Join Source Table field and enables you to select a table from the drop-down list. |
| Pre Join Source Table | Indicates the table from which the pre-joined column was sourced. When the Join option is set to False, this field becomes inactive. When the Join option is set to True or Manual, this field is set to the current table name. When the Join option is set to Pre Join, then you can select the required table from the drop-down list. |
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