If theprimary table keyis used to access astandard tableand the key isempty, the first line of the internal table is deleted. If this is known statically, the syntax check produces a warning. 如果使用了primary table
1、在使用DELETE FROM TABLE删除数据库表的数据时,无需所有字段数据完全一致,只需要关键字的值完全一致就可以删除掉 2、在删除数据时如果可以通过关键字来删除数据,最好不要用RANGE内表进行删除,因为效率很低,可以用DELETE FROM TABLE来删除,因为会覆盖所有关键字所以效率高,但前提是在读取需要删除的数据时,最好不...
2.删除多行数据: DELETE FROM dbtab WHERE <condition>. DELETE dbtab[CLIENT SPECIFIED] FROM TABLE itab. 注:返回值同MODIFY 3.删除多行数据: 两种形式:1).通过内表删除多行数据条目的过程中将内表置为空;2).使用WHERE FIELD LIKE '%'。
11、正确地使用MOVE语句 Instead of using the move-corresponding clause it is advisable to use the move statement instead. Attempt should be made to move entire internal table headers in a single shot, rather than moving the fields one by one. 12、正确地使用inner join Let us take an example ...
14, 使用效率比较高的COLLECT, DELETE ADJACENT DUPLICATES FROM语句。 15, 使用高效的CONTEXT SQL语句.如以下代码2比代码1要快10倍以上! 代码1: SELECT * FROM SBOOK INTO SBOOK_WA UP TO 10 ROWS. SELECT SINGLE AIRPFROM AIRPTO INTO (AP1, AP2) ...
The key of a hashed table must be unique. When you define the table, you must specify the key as UNIQUE.Generic Internal TablesUnlike other local data types in programs, you do not have to specify the data type of an internal table fully. Instead, you can specify a generic construction,...
2) Write to table first enter data in the work area then transfer to table Generic Key Operations Clear, Refresh and Free Commands Clear Deletes the content of the header area of internal table Does not delete the content of the internal table ...
DELETE seats_tab FROM 4. cl_demo_output=>display( seats_tab ). Addition 3 StaticWHEREcondition. All rows are processed for which the condition afterWHEREis met. If a staticWHEREcondition is specified, the row type of the internal table must be statically identifiable.WHEREcan be specified for...
Am I missing something or Is it not available in the debugger? Former Member 2010 Dec 15 9:47 PM 0 Kudos Hello! You could of course delete lines from an internal table in a script. But the new Table Tool (Tab tables in the new ABAP Debugger) offers a comfortable way to ...
0 Kudos 27,179 SAP Managed Tags ABAP Development Hi Experts, Can i use the similar SQL statement as below in ABAP SQL or something as it ? SELECT * FROM table where substring (field,1,1) = 'B' Thanks in advance MartinReply