Description:
Get the sequence number of a field in a table sequence.
Syntax:
T.fno(F)
Note:
The function gets the sequence number of field F in table sequence T. If there is no parameter, the number of fields in T will be returned; if the specified field cannot be found, a null value will be returned.
Parameter:
|
T |
Table sequence |
|
F |
Field name |
Return value:
Integer/Null
Example:
|
|
A |
|
|
1 |
=demo.query("select * from EMPLOYEE") |
|
|
2 |
=A1.fno(EID) |
1, which indicates that the sequence number of field "EID" is 1. |
|
3 |
=A1.fno() |
9, which indicates that there are 9 fields in the table sequence. |
Related functions: