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The following table describes the columns of the view.

Name	Null?	Type
ITEM_TYPE	NOT NULL	VARCHAR2(8)
ITEM_KEY	NOT NULL	VARCHAR2(240)
USER_KEY		VARCHAR2(240)
ROOT_ACTIVITY	NOT NULL	VARCHAR2(30)
ROOT_ACTIVITY_VERSION	NOT NULL	NUMBER
OWNER_ROLE		VARCHAR2(30)
PARENT_ITEM_TYPE		VARCHAR2(8)
PARENT_ITEM_KEY		VARCHAR2(240)
PARENT_CONTEXT		VARCHAR2(2000)
BEGIN_DATE	NOT NULL	DATE
END_DATE		DATE

Note: The item key for a process instance can only contain single-byte characters. It cannot contain a multibyte value.