Addition 1
... FROM n1
Addition 2
... TO n2
Effect
Places all internal table entries from the entry with the index (SY-TABIX ) = n1 to the entry with the index = n2 inclusive in the output area in turn.
If either one of the additions " FROM n1 " or " TO n2 " is missing, then the table is processed either from the first entry or up to the last entry (according to what is missing).
Example
Output table entries 7 and 8:
DATA: BEGIN OF T OCCURS 100,
BAREA(5), BLNCE(5),
END OF T.
LOOP AT T FROM 7 TO 8.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
Addition 3
... WHERE logexp
Effect
Places all internal table entries which satisfy the condition logexp in turn in the output area. The condition logexp can be almost any logical expression . The only restriction is that the first field for each comparison must be a sub-field of the line structure of the internal table itab .
Example
DATA: BEGIN OF T OCCURS 100,
BAREA(5), BLNCE(5),
END OF T.
LOOP AT T WHERE BAREA > 0.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
which has the same effect as:
LOOP AT T.
CHECK T-BAREA > 0.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
The interaction between the LOOP AT ... WHERE statement and the AT control break statements is currently undefined. It is therefore important to avoid using either the AT NEW/END OF or FIRST/LAST statements in a LOOP loop with a WHERE condition.
The performance of a LOOP AT ... WHERE statement can be improved significantly if the fields to be compared always have the same data type. The comparison fields should be defined as follows:
DATA LIKE .
Example:
DATA: BEGIN OF T OCCURS 100,
BAREA(5), BLNCE(5),
END OF T.
DATA CMP_BAREA LIKE T-BAREA.
CMP_BAREA = '01'.
LOOP AT T WHERE BAREA = CMP_BAREA.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
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... FROM n1
Addition 2
... TO n2
Effect
Places all internal table entries from the entry with the index (SY-TABIX ) = n1 to the entry with the index = n2 inclusive in the output area in turn.
If either one of the additions " FROM n1 " or " TO n2 " is missing, then the table is processed either from the first entry or up to the last entry (according to what is missing).
Example
Output table entries 7 and 8:
DATA: BEGIN OF T OCCURS 100,
BAREA(5), BLNCE(5),
END OF T.
LOOP AT T FROM 7 TO 8.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
Addition 3
... WHERE logexp
Effect
Places all internal table entries which satisfy the condition logexp in turn in the output area. The condition logexp can be almost any logical expression . The only restriction is that the first field for each comparison must be a sub-field of the line structure of the internal table itab .
Example
DATA: BEGIN OF T OCCURS 100,
BAREA(5), BLNCE(5),
END OF T.
LOOP AT T WHERE BAREA > 0.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
which has the same effect as:
LOOP AT T.
CHECK T-BAREA > 0.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
The interaction between the LOOP AT ... WHERE statement and the AT control break statements is currently undefined. It is therefore important to avoid using either the AT NEW/END OF or FIRST/LAST statements in a LOOP loop with a WHERE condition.
The performance of a LOOP AT ... WHERE statement can be improved significantly if the fields to be compared always have the same data type. The comparison fields should be defined as follows:
DATA LIKE .
Example:
DATA: BEGIN OF T OCCURS 100,
BAREA(5), BLNCE(5),
END OF T.
DATA CMP_BAREA LIKE T-BAREA.
CMP_BAREA = '01'.
LOOP AT T WHERE BAREA = CMP_BAREA.
WRITE: / T-BAREA, T-BLNCE.
ENDLOOP.
ABAP TOPIC WISE COMPLETE COURSE
BDC OOPS ABAP ALE IDOC'S BADI BAPI Syntax Check
Interview Questions ALV Reports with sample code ABAP complete course
ABAP Dictionary SAP Scripts Script Controls Smart Forms
Work Flow Work Flow MM Work Flow SD Communication Interface
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