7.9.2 CHANGE Comments/Warnings
- When changing multiple variables simultaneously to an expression, the position of the field will affect the result as shown in examples A and B.
Define Field(#STD_NUMSV) Reffld(#STD_NUM)
Example A: #std_num gets value 5 and #std_numsv gets value 6
Change Field(#STD_NUM) To(4)
Change Field(#STD_NUM #STD_NUMSV) To('#std_num + 1')
Example B: #std_num gets value 5 and #std_numsv gets value 5
Change Field(#STD_NUM) To(4)
Change Field(#STD_NUMSV #STD_NUM) To('#std_num + 1')
Using quotes
- In RDML functions, a literal whose first character looks like a number (begins with plus, minus, decimal point or a digit), must be triple quoted using three single quotes. For example:
CHANGE FIELD(#ADDRESS1) TO('''1 Mount ST''')
- In RDMLX code:
- The literal needs to be enclosed in double quote characters:
CHANGE FIELD(#ADDRESS1) TO("1 Mount ST")
- When assigning the value, the literal can be in either single or double quotes:
#ADDRESS1 := '1 Mount ST'
or
#ADDRESS1 := "1 Mount ST"