How to add the entries and how to delete the entries from custom Z-table?

Question

Hi Experts,
My requirement is I need to add the entries from program to three custom z-tables . Assume as zabc1,zabc2,zabc3.
Here how to add the entries from program to Z-table.???
And one more requirement is I want to provide a deletion checkbox in selection screen . Initial it was unchecked. If I am giving tick mark then the entries should be deleted from above custom Z-tables. this all will done in backgroung job?
Could you please guide me the logic how to crack this???
Let me know if you need more Info
Thanks
Sanju

Answer 1

Hi Sanjana,
What you can do is to use the ABAP keyword INSERT or MODIFY to add or modify records to a given database table. Here are the syntax taken from SAP documentation:
*Insert Statement
INSERT dbtab
Syntax
INSERT { {INTO target VALUES source }
       | {     target FROM   source } }.
Effect
The INSERT statement inserts one or more rows specified in source in the database table specified in target. The two variants with INTO and VALUES or without INTO with FROM behave identically, with the exception that you cannot specify any internal tables in source after VALUES.
System Fields
The INSERT statement sets the values of the system fields sy-subrc and sy-dbcnt.
sy-subrc Meaning
0 At least one row was inserted.
4 At least one row could not be inserted, because the database table already contains a row with the same primary key or a unique secondary index.
The INSERT statement sets sy-dbcnt to the number of rows inserted.
Note
The inserted rows are finally included in the table in the next database commit. Up until this point, they can still be removed by a database rollback.
*Modify Statement
MODIFY dbtab
Syntax
MODIFY target FROM source.
Effect
The MODIFY statement inserts one or several lines specified in source in the database table specified in target, or overwrites existing lines.
System fields
The MODIFY statement sets the values of the sy-subrc and sy-dbcnt system fields.
sy-subrc Meaning
0 At least one line is inserted or changed.
4 At least one line could not be processed since there is already a line with the same unique name secondary index in the database table.
The MODIFY statement sets sy-dbcnt to the number of processed lines.
Note
The changes are transferred finally to the database table with the next database commit. Up to that point, they can be reversed using a database rollback.
Hope it helps...
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