Read Table 的语法很多,这里说一种特殊情况,Read Table 中查询的时候对标准内表经常有一种二分优化查找,用Binary search的时候首先必须要有查询条件;但如果查询条件满足的项目不至一条时,这时得到的是这些数据中索引排在最前面的数据; 如: 001 0001 20100101 001 0001 20100103 001 0001 20100105 READTABLEitabINT...
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...
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
abap tables参数 abap read table 向原作者 莫怀远 1. 如果使用READ TABLE语句来读取内部表数据,而不是简单看返回值判断是否存在,那么在使用READ TABLE语句之前,一定要记得使用CLEAR语句清空内部表的工作区。 2. READ TABLE itab WITH KEY = v BINARY SEARCH....
READTABLE的⽤法 1SORT ITAB BY'你想⽐较的列'. " 排序以增加⼆分查找的速度 2READ TABLE itab with key 'itab中某列' = ‘⽬标列' BINARY SEARCH.1．如果使⽤READ TABLE语句来读取内部表数据，⽽不是简单看返回值判断是否存在，那么在使⽤READ TABLE语句之前，⼀定要记得使⽤...
read table itab into wa_itab with key A = var1 B = var2 C = car3 Binary Search. But, the read fails in most of the cases even though the exact values exist in the itab. It does not fail always, but fails for majority of the cases, though the exact matches are present in...
Cause:When reading a table usingREAD ... WITH[TABLE]KEY, overlapping or duplicate keys were specified. Runtime error:DYN_KEY_DUPLICATE Cause:When reading a table of the typeSORTED, the specified key fields have to be an initial part of the table key whenBINARY SEARCHis specified. ...
If no row is found, sy-tabix is undefined (-1), except when the complete table key or the addition BINARY SEARCH is specified in a sorted table. In this case, sy-tabix is set to the row number of the entry in the primary table index in front of which the row would be inserted ...
Read Table Binary Search读得field一定要按照Sort的顺序 2010-12-23 23:20 −如果 Sort int_tab1 by aaa bbb ccc. 则 Read table with key bbb=… ccc=… aaa=… Binary search. 肯定会缺少很多返回记录,这样是错误的。 一定要和sort时候的field顺序一样。 ** 但是如果是... ...