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# 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

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