Question

你好，有没有办法把它放在一个声明中？

DELETE e_worklist where wbs_element  = '00000000000000000054TTO'.
DELETE e_worklist where wbs_element  = '00000000000000000056TTO'.
DELETE e_worklist where wbs_element  = '00000000000000000055TTO'.
DELETE e_worklist where wbs_element  = '00000000000000000261TTO'.
DELETE e_worklist where wbs_element  = '00000000000000000263TTO'.
DELETE e_worklist where wbs_element  = '00000000000000000262TTO'.

Answer 1

以上提出的IN答案仅对数据库表有效：

删除 FROM e_worklist，其中wbs_element为IN （＆＃39; 00000000000000000054TTO＆＃39;，＆＃39; 00000000000000000056TTO＆＃39;，＆＃39; 00000000000000000055TTO＆＃39;）。

在您的示例中，您放置了内部表语句，对于它们，建议的IN语法对于文字无效。它有效only with selection tables/ranges，也需要populated properly。所以你不能将文字包装成IN子句，你需要像这样做：

ws_wbs-sign   = 'I'. 
ws_wbs-option = 'EQ'. 
ws_wbs-low    = '00000000000000000054TTO'. 
APPEND ws_wbs TO rt_wbs. 

DELETE e_worklist WHERE wbs_element IN rt_wbs.

确实很麻烦，并且不会给你带来简洁。

然而，由于你的模式是单调的，你可以带上你的幻想并使用正则表达式，例如：

DELETE e_worklist WHERE wbs_element CP '00000000000000000*TTO'.

Answer 2

请给你另一个提示。如果没有任何范围表，您还可以使用FILTER和EXCEPT获得更好的声明。文档为here。

您必须将e_worklist复制或制作为sorted table。

data: 
    ls_worklist like line of e_worklist,
****Ajust your key if necessary
    lts_worklist like sorted table of ls_worklist with unique key table_line,  
    lth_wbs_element like hashed table of ls_worklist-wbs_element with unique key table_line.

lts_worklist = e_worklist.

****Add your other values if necessary
lth_wbs_element = value #( ( |00000000000000000054TTO| ) ( |00000000000000000263TTO| ) ). 

e_worklist = filter #( lts_worklist except in lth_wbs_element where wbs_element = table_line ).

Answer 3

由于它是一个内部表，与数据库命令不同，因为删除DELETE命令的数量没有真正的性能影响。您可以使用以下内容使其更简洁：

DELETE e_worklist where wbs_element  =: '00000000000000000054TTO', 
                                        '00000000000000000056TTO',
                                        '00000000000000000055TTO',
                                        '00000000000000000261TTO',
                                        '00000000000000000263TTO',
                                        '00000000000000000262TTO'.

如何缩短DB表的DELETE语句？

3 个答案: