Description:
Group a cluster cursor by comparing each record with its next neighbor.
Syntax:
cs.group(x,…)
Note:
The function groups records in ordered cluster cursor cs according to expression x by comparing the value of x only with its next neighbor, and returns the cluster cursor containing a sequence of groups. The operation is equivalent to a merge and supports multicursors.
Parameter:
cs |
A cluster cursor |
x |
Grouping expression; use comma to separate multiple grouping fields or expressions |
Return value:
The grouped cluster cursor
Example:
|
A |
|
1 |
=file("employees.ctx","192.168.0.111:8281") |
Below is employees.ctx ordered by DEPT field:
|
2 |
=A1.open() |
Create a cluster composite table. |
3 |
=A2.cursor() |
Return a cluster cursor. |
4 |
=A3.group(DEPT) |
Group the cluster cursor by DEPT and return the grouped cluster cursor. |
5 |
=A4.fetch() |
|