KNTA_SCHEDULED_TASKS

This table is the primary table owned by the scheduling engine. Every scheduled task has a row in it. For example, when a report is scheduled to run at a later time, a scheduled task is inserted into this table. When the report is completed, the scheduled task is deleted. The workflow engine uses this table in a similar fashion.

Foreign Keys

Primary Key Table	Primary Key Column	Foreign Key Column
KNTA_USERS	USER_ID	LAST_UPDATED_BY
KNTA_USERS	USER_ID	CREATED_BY
KNTA_SCHEDULED_TASK_RECUR	SCHEDULED_TASK_RECUR_ID	SCHEDULED_TASK_RECUR_ID
KNTA_REPORT_SUBMISSIONS	REPORT_SUBMISSION_ID	TASK_DATA_ID

Column Descriptions

Column Name	Null?	Data Type	Description
SCHEDULED_TASK_ID	NOT NULL	NUMBER	System-generated identifier
WORKER_CLASS	NOT NULL	VARCHAR2(100)	A fully-qualified WorkerThread subclass name
SCHEDULED_TIME	NOT NULL	DATE	Scheduled time for the task; for a repetitive task, time for the next run
TASK_DATA_ID	NULLABLE	NUMBER	Foreign key to the owner table of this task, for example, knta_report_submissions
GROUP_ID	NULLABLE	NUMBER	Used to group tasks together for serial execution
SCHEDULED_TASK_RECUR_ID	NULLABLE	NUMBER	Foreign key to table KNTA_SCHEDULED_TASK_RECUR; null if non-repetitive
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
ENTITY_LAST_UPDATE_DATE	NOT NULL	DATE	Date a record in the entity was last updated
PRIORITY_SEQUENCE	NULLABLE	NUMBER	Tasks with smaller priority sequence are run earlier.

Indexes

Index Name	Index Type	Sequence	Column Name
KNTA_SCHEDULED_TASKS_N1	NONUNIQUE	1	GROUP_ID
KNTA_SCHEDULED_TASKS_N2	NONUNIQUE	1	TASK_DATA_ID
KNTA_SCHEDULED_TASKS_U1	UNIQUE	1	SCHEDULED_TASK_ID

Sequences

Sequence Name	Sequence Type
KNTA_SCHEDULED_TASKS_S	SCHEDULED_TASK_ID
KNTA_SCHED_GROUP_ID_S	GROUP_ID