Variants
1. CONSTANTS c. ... VALUE [ val | IS INITIAL ].
2. CONSTANTS c(len) ... VALUE [ val | IS INITIAL ].
3. CONSTANTS: BEGIN OF crec,
...
END OF crec.
Effect
The CONSTANTS statement defines global and local constants. Constants allow you to read statically declared data objects . They always have a particular data type. Data types and data objects are essential components of the ABAP/4 type concept . In contrast to variables defined with the DATA statement, you cannot change the value of a constant once it has been defined. Apart from the additions ... TYPE typ OCCURS n , ... LIKE f1OCCURS n and WITH HEADER LINE , all the additions used with the DATA statement are allowed. However, in contrast to the DATA statement, the addition ... VALUE val or VALUE IS INITIAL obligatory with variants 1 and 2. See additions with DATA .
Example
CONSTANTS CHAR1 VALUE 'X'.
CONSTANTS INT TYPE I VALUE 99.
CONSTANTS: BEGIN OF CONST_REC,
C(2) TYPE I VALUE 'XX',
N(2) TYPE N VALUE '12',
X TYPE X VALUE 'FF',
I TYPE I VALUE 99,
P TYPE P VALUE 99,
F TYPE F VALUE '9.99E9',
D TYPE D VALUE '19950101',
T TYPE T VALUE '235959',
END OF CONST_REC.
CONTINUE
Basic form
CONTINUE.
Effect
Within loop structures like
- DO....END DO
- WHILE ...END WHILE
- LOOP ....ENDLOOP
- SELECT....ENDSELECT
CONTINUE terminates the current loop pass, returns the processing to the beginning of the loop and starts the next loop pass, if there is one.
Example
DO loop: Omit an area (10 ... 20)
DO 100 TIMES.
IF SY-INDEX >= 10 AND SY-INDEX <= 20.
CONTINUE.
ENDIF.
...
ENDDO.
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