The LinkedListFromSQLCommandColumn Function creates a LinkedList Data Object from a column of a SQLCommand Data Object.
Informal Syntax:
LinkedListFromSQLCommandColumn( SQLCommandID, ColumnIndex )
Formal Syntax:
LinkedListFromSQLCommandColumn(
SQLCommandID:=Expression,
ColumnIndex:=Expression )
The LinkedListFromSQLCommandColumn Function has these parameters.
| Parameter | Type | Description |
|---|---|---|
| SQLCommandID | DINT | The identifier of the SQLCommand Data Object. |
| ColumnIndex | ANY_INT | The zero-based index of the column to convert to a LinkedList Data Object. |
The function returns a DINT value representing the LinkedList Object.
One entry is added to the LinkedList Data Object for each row in the SQLCommand Data Object.
The function reports a runtime error if the SQLCommandID parameter does not refer to a valid SQLCommand Data Object.
The LinkedListFromSqlCommandColumn Function is an extension to the IEC 61131-3 standard.
For information about functions to manage LinkedList data objects.
For information about all Data Objects supported by Fernhill SCADA.
To learn how IEC 61131-3 is used in Fernhill SCADA.
For the meaning of terms used in Fernhill SCADA.