Cron Expression Format
Use cron expressions to define the recurrence condition that the tool must use to schedule the graph execution.
Cron Format
Cron expression to execute graphs in the SAP Data Hub Modeler is a string comprising of five fields. The table lists the order of fields (from left to right) in a cron expression and the permitted values for each field.
|
Cron Field (from left to right) |
Description |
|---|---|
|
Minute |
Representation for minute. Permitted: 0 to 59 |
|
Hour |
Representation for hour. Permitted: 0 to 23 |
|
DayOfMonth |
Day of month. Permitted: 1 to 31 |
|
Month |
Numeric representation for month. Permitted: 1 to 12 |
|
DayOfWeek |
3-letter representation for day of week. Permitted: mon, tue, wed, thu, fri, sat, sun |
Cron Syntax
The table illustrates the syntax that the tool supports to define a cron expression.
|
Expression |
Where Used |
Value |
|---|---|---|
|
. |
Anywhere |
Any value |
|
*/a |
Anywhere |
Any a-th value |
|
a:b |
Anywhere |
Values in range a to b |
|
a:b/c |
Anywhere |
Every c-th value between a and b |
|
a.y |
DayOfWeek |
On the a-th occurrence of the weekday y (a = 0 to 6) On the a-th occurrence of the weekday y (a = 0 to 6) |
|
a,b,c |
Anywhere |
a or b or c |
Cron Expression: Examples
|
Expression |
Description |
|---|---|
|
* * * * * |
Run the schedule every minute |
| */5 13 * 12 0 |
Run the schedule every 5th minute between 1:00 PM (UTC) and 1:59 PM (UTC) on Sundays in December. |
|
* * -1.sun 9 0 |
Run the schedule on the last Sunday of every month at 09:00. |