ABAP READ TABLE使用BINARY SEARCH如题,read table使用binary search,with key有多个字段的时候,寻找数据的内部逻辑是怎样的比如有内表(按A,B已排好序)T_DATAA B C1 1 11 2 22 1 32 2 42 3 53 1 63 2 73 3 8现在用如下语句查找READ TABLE T_DATA INTO W_DATA WITH KEY A='2' B = '3' BINA...
read之前一定要排序,按照read的KEY字段进行排序,否则就可能取不到。 READ 不加BINARY SEARCH的取数逻辑, 其实是取第一笔数据
abap read table 二分法abap read table二分法 ABAP中READ TABLE语句使用顺序查找数据表,这会降低处理速度,而使用BINARY SEARCH理论上可以减少一半的运行时间。在使用binary search之前必须首先将内表排序,否则有可能数据为空。因为二分查找反复将查找区间对半划分,如果要查找的值小于查找区间的中间位置的数据项值,则查找...
read之前一定要排序,按照read的KEY字段进行排序,否则就可能取不到。 READ 不加BINARY SEARCH的取数逻辑, 其实是取第一笔数据
3'的数据,如果有多条满足条件的数据,则返回内表中满足条件的索引最小的一条。在做二分查找之前,需要先对内表以查找的字段顺序进行升序排序,也就是说,在你的例子中用二分查找之前要对内表按A、B的顺序进行排序,即 SORT T_DATA[] BY A B ASCENDING.否则不一定能查找到正确的确结果 ...
SAP BTP, ABAP environment, ABAP Development Hi all, I have been reading through the ABAP 740 read table statements. Questions: I have a ztable with field1 to field10 with only field1 as primary key. 1) I am reading through a itab in my program with " read table into wa with key ...
SAP ABAP » SAP ABAP TutorialHow to read an internal table?Updated May 18, 20181. READ TABLE itab FROM wa [additions]. 2. READ TABLE itab WITH TABLE KEY k1 = v1 ... kn = vn[ additions]. 3. READ TABLE itab WITH KEY k1 = v1 ... kn = vn[BINARY SEARCH] [ additions]....
SAP Managed Tags: ABAP Development ABAP Development Programming Tool View products (1) Hi, I have the following issue: From a table, I am picking up 5 fields into an internal table (in the correct sequence): A B C D E. Now, I am sorting the above internal table as follows: sort...
(Binary Search) reward if useful Reply Former Member 2007 Oct 29 6:19 AM 0 Kudos 114 SAP Managed Tags: ABAP Development Hi If the addition TRANSPORTING NO FIELDS is used, the statement READ TABLE only checks whether the line that is being searched for exists, and fills the sys...
READ is a keyword used in SAP ABAP programming.This tutorial covers its introduction & syntax details. READ READ – Read an internal table Basic form READ TABLE itab. READ TABLE itab INTO wa. Additions 1a. … WITH KEY k1 = v1 … kn = vn ...