Description:
An iterative loop for numbering records in which a certain field contains same values.
Syntax:
seq(Gi,…)
Note:
The function performs a loop operation to number records with the same Gi field value from 1. As the value of field changes, number the records from 1 again.
Parameter:
Gi |
Field name |
Option:
@n |
The option can increase the numbering efficiency, but can only be used when the specified expression returns a positive integer; support using sequence numbers |
Return value:
Cursor
Example:
|
A |
|
1 |
=demo.query("select * from SCORES ") |
|
2 |
=A1.derive(seq(CLASS):F1) |
|
3 |
=A1.derive(seq(CLASS,STUDENTID):F1) |
|