Data validation in maintenance view

I have a maintenance view which is just simply a projection of a database table.
I'm trying to add a validation before user save the data, what I have done is add a standard event by using 'Table Maintenance Generator', there is an event 'Before saving the data in the database' which I think is proper place to do the validation.
Now the problem is if the user input is invalid, after validation and message displayed on the screen, the entry user is editing will be locked, and cannot be back to editable even you click 'Change<->Display' button, user have to back to SM30 screen and re-enter again.
The idea behavior is the screen stays and the entry is editable, user can correct his input immediately.
So someone can provide any advice regard this problem?
Thanks in advance.
Ben

Hi
You can set the flag VIM_ABORT_SAVING in order to abort the saving process and back to maintenance screen without to go out from SM30
I've found a my old code:
* Check entries with same sorting key
   loop at t_sort_key_count.
     check t_sort_key_count-tot > 1.
     message i398(00) with <...............>
     vim_abort_saving = 'X'.
     exit.
   endloop.
I use e message tyoe I instead of E, in order not to lock the process and back to imain screen
Max

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Hi experts, how to use open sql to read data from one " maintenance view"?

i want to use this part of data within report ,so how to use open sql statement to read data from one " maintenance view"?

Hi
You can't use OPEN SQl statements to fetch data from maintenance view
You have to use only Database views
see the different types of views and the difference
The followings are different types of views:
- Database View (SE11)
Database views are implement an inner join, that is, only records of the primary table (selected via the join operation) for which the corresponding records of the secondary tables also exist are fetched. Inconsistencies between primary and secondary table could, therefore, lead to a reduced selection set.
In database views, the join conditions can be formulated using equality relationships between any base fields. In the other types of view, they must be taken from existing foreign keys. That is, tables can only be collected in a maintenance or help view if they are linked to one another via foreign keys.
- Help View ( SE54)
Help views are used to output additional information when the online help system is called.
When the F4 button is pressed for a screen field, a check is first made on whether a matchcode is defined for this field. If this is not the case, the help view is displayed in which the check table of the field is the primary table. Thus, for each table no more than one help view can be created, that is, a table can only be primary table in at most one help view.
- Projection View
Projection views are used to suppress or mask certain fields in a table (projection), thus minimizing the number of interfaces. This means that only the data that is actually required is exchanged when the database is accessed.
A projection view can draw upon only one table. Selection conditions cannot be specified for projection views.
- Maintenance View ( SE54 )
Maintenance views enable a business-oriented approach to looking at data, while at the same time, making it possible to maintain the data involved. Data from several tables can be summarized in a maintenance view and maintained collectively via this view. That is, the data is entered via the view and then distributed to the underlying tables by the system.
Please have a look at below link. It will help you.
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ed06446011d189700000e8322d00/frameset.htm
for more detailed info look on:
http://www.sap-img.com/abap/what-is-the-different-types-and-usage-of-views.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/abap+dictionary&
Reward points for useful Answers
Regards
Anji

Popup window for data selection in maintenance view

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Hello Sudeesh,
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Hi sachin,
I don't get your point can you Explain me Briefly.
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Hi,
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Refresh data in Table Maintenance view

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Hi Jesus,
COMMIT WORK isn't help me.
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If I have modified database tables directly I don't see changes in the view cluster.
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Edited by: Malnor on Nov 23, 2010 9:19 AM
Edited by: Malnor on Nov 23, 2010 9:38 AM

Querying data from the maintenance view.

Hi Experts,
Well, i need the STEXT field value from the maintanance view V_T591A created for the standard table T591A.
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Atish,
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Thanks though.
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Hi Experts,
Requirement:
1. I have maintained a maintenance view on three Database tables.
2.Data can be entered in the view as it is a Maintenace view as i have created maintenance generator for that and it is a requirement.
3. In one of my programs i need to read this data, into an internal table, that is maintained through this view.
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Sunil,
check these threads
https://forums.sdn.sap.com/click.jspa?searchID=18906946&messageID=6074746
https://forums.sdn.sap.com/click.jspa?searchID=18906946&messageID=6088233
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Read data from maintenance view

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could anyone please tell me if there is any special way to read data from a maintenance view (if at all it is possible).
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select single lgnum from v_t320 into (w_lgnum) where werks eq p_i_werks and lgort eq p_i_lgort.
awaiting answers...
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PJ

Thanx Rich,
but the documentation on maintenance views says that we can have read access to them. Does that mean the data can only be seen via the DDIC and not from a select written in a program??
this is what i read...
Maintenance Status
The maintenance status of a view controls whether data records can also be changed or inserted in the tables contained in the view.
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Read only: Data can only be read through the view.
Read, change, delete, insert: Data of the tables contained in the view can be changed, deleted, and inserted through the view.
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Read and change: Existing view entries can be changed. However, records cannot be deleted or inserted.
Read and change (time-dependent views): Only entries whose non-time-dependent part of the key is the same as that of existing entries may be inserted.
you surely have earned some points here....just let me be clear of the concept behind this
regards,
PJ

Issue on a maintenance view

I want to fetch the data from a maintenance view: V_001_B.
I used the select statement to retrieve the data.But, I got a message saying that "it's not a table or a database view or a projection view".
Any body please help me, how to retrieve data from a maintenance view.

these r the 3 tables which r connected to ur view - T882,T001,T001Z
if u want data based on some join on these 3 tables then put a join in ur code on these 3 tables and then fetch ur record..if u want datra specific to one table only then u can directly select tht frm a single table..
amit

How to Access Maintenance View from a program

Hi Experts,
I have created a maintenance view for a table. i want to insert data's into the table through the maintenance view. I don't know how to access the view, how to insert data into the Maintenance view. Please suggest me how to access the view from the program.
with regards,
James...
Valuable answers will be rewarded...

Hi,
What is the need to search for a program.
Use transaction SM30 or SE16 to create or maintain entries in the table.
e.g. if the Maintenance view is created on table A, then Goto transaction SM30 or SE16 and give the table name as A and proceed. This will automatically take u to the maintenance view on tha table A.
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Himanshu

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hi ,
I m facing problem in updation of Z-table through maintenance view (SM30).
The scenario is that I have one customizing field in my Z-table which is checkbox.
Now I need to populate 2 fields in Z-table on tick of this checkbox and clicking of SAVE button.
For this I have created one module ''change_field'' in PAI.
Actually my database table is being updated but as soon as the control left my module all the updation that take place vanishes away.....
So please help me in this matter.

Thanks for ur previous effort it is updating the database but its effect is not shown immediately on screen.After i referesh the transaction it is dispalying the data.
So can u please suggest me any way....
Now i have one scenario infront of me....
I need to restrict the data shown in maintenance view.
I think it would be same as pop-up window displayed when we tick on 2nd radiobutton ("ENTER CONDITIONS")
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Please suggest what shud i do....
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Amit
Edited by: amit gupta on Jul 18, 2008 1:35 PM

Data validation in maintenance view

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