Description
Creates a non-query record group with the given name. The new record group has no columns and no rows until you explicitly add them using the ADD_GROUP_COLUMN, the ADD_GROUP_ROW, and the POPULATE_GROUP_WITH_QUERY Built-ins.
Syntax
FUNCTION CREATE_GROUP
(recordgroup_name VARCHAR2,
scope NUMBER,
array_fetch_size NUMBER);
Built-in Type unrestricted function
Returns RecordGroup
Enter Query Mode yes
Parameters
recordgroup_name
The string you defined as the name of the record group at design time. When Oracle Forms creates the record group object it also assigns the object a unique ID of type RecordGroup. You can call the record group by name or by ID in later calls to record group or record group column built-in subprograms.
scope
Specifies whether tlhe record group can be used only within the current form or within every form in a multi-form application. Takes the following constants as arguments:
FORM_SCOPE Indicates that the record group can by used only within the current form. This is the default value.
GLOBAL_SCOPE Indicates that the record group is global, and that it can be used within all forms in the application. Once created, a global record group persists for the remainder of the runtime session.
array_fetch_size
Specifies the array fetch size. The default array size is 0.
CREATE_GROUP Examples
/*** Built-in: CREATE_GROUP ** Example: Creates a record group and populates its values ** from a query. */
DECLARE
rg_name VARCHAR2(40) := ‘Salary_Range‘;
rg_id RecordGroup;
gc_id GroupColumn;
errcode NUMBER;
BEGIN
/* ** Make sure the record group does not already exist.*/
rg_id := Find_Group(rg_name); /* ** If it does not exist, create it and add the two ** necessary columns to it. */
IF Id_Null(rg_id) THEN
rg_id := Create_Group(rg_name); /* Add two number columns to the record group */
gc_id := Add_Group_Column(rg_id, ‘Base_Sal_Range‘, NUMBER_COLUMN);
gc_id := Add_Group_Column(rg_id, ‘Emps_In_Range‘, NUMBER_COLUMN);
END IF; /* ** Populate group with a query */
errcode := Populate_Group_With_Query(rg_id,
‘SELECT SAL-MOD(SAL,1000),COUNT(EMPNO) ‘ ||
‘FROM EMP ‘ ||
‘GROUP BY SAL-MOD(SAL,1000) ‘ ||
‘ORDER BY 1‘);
END;