AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Abap catch cx sy illegal itab9/19/2023 When a work area wa is specified for output response result. Not occur in the loop is when a directly specified table is read without a specified secondary key and It is generally better to read multiple rows in a LOOP than making multiple individual row reads using the statement READ TABLE orĭue to compatibility reasons, when a table body is replaced, the only situation where a runtime does However, in exceptional cases, it can be bypassed using a This warning should be removed through using the key. The syntax check issues a warning if there is a suitableīut this table key is not used. The used table key or table index is always specified uniquely. There is no implicit selection of a suitable key or index. The same thing is true if the table is represented by a field symbol.Īfter the implementation of the field symbol in the loop, iteration still takes place using the table linked to the field symbol when LOOP is entered. The associated object cannot be deleted from the Any changes to the reference variable do not have an effect on the loop. The loop is executed completely using the table referenced at entry. If the internal table itab is specified using a WHERE, and with all types of assignments to itab. However,Īt runtime, a runtime error occurs in most cases when replacing the entire table body with statements Otherwise, the syntax check simply returns a warning for compatibility reasons. If this is statically discernible,Ī syntax error occurs in classes and for LOOPS with statically discernible Since this usually produces unpredictable programīehavior, the entire table body cannot be accessed in change mode in a loop. The case if new rows were added to the table afterwards. The loop to be exited at the next loop pass in accordance with the rules described above. The replacement of the entire table body in a LOOP using this table causes In the case of loops on index tables or if using a sorted key, this affects sy-tabix in the subsequent loop pass, and sy-tabix is decreased accordingly. If the current row or rows before the current row are deleted, the internal loop counter is decreasedīy one with each deleted row. This affects sy-tabix, which is also increased (in the subsequent loop pass in the case of loops on index tables or when using a sorted key). If rows are inserted before the current row, the internal loop counter is increased by one with each If rows are deleted after the current row, the deleted rows are no longer processed in the subsequent loop passes. If rows are inserted after the current row, these new rows are processed in the subsequent loop passes. In the case of loops on hashed tables and if using a hash key, the position depends on the insert order. The following effects: The position of inserted or deleted rows with regard to the current row is determinedīy the row numbers in the corresponding table index in the case of loops on index tables or if using a sorted key. If rows are inserted or deleted in the statement block of a LOOP, this has The system fields sy-tfill and sy-tleng are also filled. The loop using ENDLOOP, sy-tabix is set to the value that it had before entering the loop and that applies for sy-subrc: sy-subrc Sorted key on the row number of the current table row in the associated table index. In each loop pass for index tables and when using a This variant of the statement LOOP AT sets the value of the system field sy-tabix: If no appropriate rows are found or if the internal table is blank, the loop is not run at all. Have been read or until it is exited with a statement. The loop continues to run until all the table rows that meet the cond condition In each loop pass, the system field sy-tabix contains the value 0. In the table, and by the sort order used after the statement SORT. The rows are processed in the order in which they were inserted In each loop pass, the system field sy-tabix contains the row number of the current row in the primary table index. The rows are read by ascending row numbers in the If no explicit table key name is specified after USING KEY, the order in which the rows are read depends on the table category as follows: Afterwards, it is no longer possible to access the internal table. Table expression, the value is persisted for the duration of the loop. If the internal table is specified as the return value or result of a ENDAT can be used to define control structures for Either all the rows are read or cond conditions are specified to restrict which rows are read. The table key with which the loop is executed can be determined in cond. The output response result determines how and to where the row contents are read. Processing Statements for Internal Tables →ĪT itab executes the statement block between LOOP and ENDLOOP once for each read row.
0 Comments
Read More
Leave a Reply. |