9/20/2023 0 Comments Abap 7.4 loop at itab![]() WHERE can be specified for all table categories.Ī logical expression log_exp can be specified after WHERE, in which the first operand of each The row type of the internal table must be statically identifiable. If a static WHERE condition is specified, ![]() All rows are processed for which the condition after LOOP AT itab FROM idx ASSIGNING FIELD-SYMBOL(). ![]() (if rows are deleted) than is specified by the difference between idx2 and idx1.ĭetermine the primary index of a particular table row using the built-in function line_index and a loop across the internal table from this row.ĭATA(idx) = line_index( itab ). As a result, there may be more loop passes (if rows are inserted) or fewer loop passes Note that this number can be changed if rowsĪre inserted or deleted during a loop pass as described in Has been reached, the current row number is evaluated. To determine when loop processing is exited and whether the value specified in idx2 Idx2 is evaluated in each loop pass and any changes made to idx2 during loop processing are respected. To idx1 during loop processing are ignored. The value of idx1 is evaluated once when the loop is entered. If the value of idx2 is less than the value of idx1, no processing takes place. If the value of idx2 is greater than the number of table rows, it is set to the number of table rows. If the value of idx2 is less than or equal to 0, the statement LOOP If the value of idx1 is greater than the total number of table rows, no processing takes place. If the value of idx1 is less than or equal to 0, it is set to 1 in the statement Numeric expression positions of operand type i. Specified in keyname after USING KEY, the additionsįROM and TO can be used for all table categories and refer to the row numbers of the In this case, they refer to the row numbers of the Is specified in keyname, the additions FROM and TO can only be used for If the addition USING KEY is not used, or the If only TO is specified, all rows in the table from the first row up to row number idx2 are respected. If onlyįROM is specified, all rows of the table from row number idx1 up toĪnd including the last row are taken into account. Up to row number idx2, are respected if the table index used. If these additions are used, only the table rows from row number idx1, or ![]() Loop Across Internal Table with Key Specified Output2 = VALUE #( BASE output2 ( number2 ) ). LOOP AT itab INTO DATA(number2) USING KEY key. Output1 = VALUE #( BASE output1 ( number1 ) ).ĭATA output2 TYPE TABLE OF i WITH EMPTY KEY. Itab = VALUE #( FOR i = 1 UNTIL i > 10 ( rnd->get_next( ) ) ).ĭATA output1 TYPE TABLE OF i WITH EMPTY KEY. WITH NON-UNIQUE SORTED KEY key COMPONENTS table_line. The second loop returns the rows sorted in ascending order.ĭATA(rnd) = cl_abap_random_int=>create( seed = + sy-uzeitĭATA itab TYPE STANDARD TABLE OF i WITH EMPTY KEY The first loop returns the rows in the order they were appended. The example demonstrates the difference between loops across a standard table of random numbers whereĪ sorted secondary table key is specified and those where it is not. Otherwise a syntax error occurs or an exception is raised. If a secondary table key is specified, any WHERE condition also specified must be Unlike the processing of a hashed table when a primary key is used, a preceding sort using the statement SORT has no influence on the processing order when a secondary hash key is specified. In each loop pass, the system field sy-tabix contains the value 0. The rows are processed in the order in which they were inserted into the table. In each loop pass, the system field sy-tabix contains the row number of the current row in the associated secondary table index. ![]() The rows are processed by ascending row number in the Secondary table key is specified, the order in which the rows are accessed is as follows: Key is specified using the name primary_key, the processing behaves in the same way as when no key is explicitly specified. The specified table key influences the order in which the table rows are accessed, and the evaluation of the remaining conditions. The addition USING KEY can be used to specify a table key keyname with which the processing is carried out. Including the statement in a procedure that is called in the loop is not sufficient. This type of statement must thenīe executed in the loop itself. Keyname is used and where it can be declared explicitly. This is possible in all statements where the table key Within the loop, the key being used can be addressed using the predefined loop_key. If no conditions are declared, all table rows are read. The table rows to be read in a LOOP loop can also be limited using optional conditions. The table key with which the loop is executed. Processing Statements for Internal Tables → SAP NetWeaver AS ABAP Release 751, ©Copyright 2017 SAP AG. ![]()
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