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# KRML_VIEW_COLUMNS

This table stores information about each column of an RML view. This table is for internal use only.

## Foreign Keys

Primary Key Table | Primary Key Column | Foreign Key Column
--- | --- | ---
KNTA_USERS | USER_ID | CREATED_BY
KNTA_USERS | USER_ID | LAST_UPDATED_BY
KNTA_PARAMETER_SET_CONTEXTS | PARAMETER_SET_CONTEXT_ID | PARAMETER_SET_CONTEXT_ID
KRML_PARAMETER_SET_FLDS_COPY | PARAMETER_SET_ID | SOURCE_PARAMETER_SET_ID
KRML_VIEWS | VIEW_ID | VIEW_ID

## Column Descriptions

Column Name | Null? | Data Type | Description
--- | --- | --- | ---
VIEW_COLUMN_ID | NOT NULL | NUMBER | System-generated identifier
VIEW_ID | NOT NULL | NUMBER | Identifies which RML view this column belongs to
CREATION_DATE | NOT NULL | DATE | Date record was created
CREATED_BY | NOT NULL | NUMBER | Identifier for the user who created the record
LAST_UPDATE_DATE | NOT NULL | DATE | Date record was last updated
LAST_UPDATED_BY | NOT NULL | NUMBER | Identifier for the user who last updated the record
PARAMETER_SET_CONTEXT_ID | NOT NULL | NUMBER | Foreign key to KNTA_PARAMETER_SET_CONTEXTS
BATCH_NUMBER | NULLABLE | NUMBER | Identifier for a batch of views that are being assessed or synchronized in a single synchronization report
PARAMETER_COLUMN_NUMBER | NULLABLE | NUMBER | Specifies in which column on this field's parent entity table to store this field's data
PROMPT | NULLABLE | VARCHAR2(50) | Field prompt
PARAMETER_TOKEN | NULLABLE | VARCHAR2(30) | Token name for this field
DESCRIPTION | NULLABLE | VARCHAR2(240) | Field description
PARAMETER_TABLE_NAME | NULLABLE | VARCHAR2(30) | For field group fields, this value is the table where the values are stored.
PARAMETER_VALUE_COL_NAME | NULLABLE | VARCHAR2(30) | For field group fields, this value is the column where the hidden values are stored.
PARAMETER_VIS_VALUE_COL_NAME | NULLABLE | VARCHAR2(30) | For field group fields, this value is the column where the visible values are stored.
SOURCE_PARAMETER_SET_ID | NULLABLE | NUMBER | Parameter set ID of the field, used to determine if a field is a standard request header field, custom request header field, or field group field.

## Indexes

Index Name | Index Type | Sequence | Column Name
--- | --- | --- | ---
KRML_VIEW_COLUMNS_PK | UNIQUE | 1 | VIEW_COLUMN_ID

## Sequences

Sequence Name | Sequence Type
--- | ---
KRML_VIEW_COLUMNS_S | VIEW_COLUMN_ID

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