Create , add rows and delete rows from Table in Flutter - flutter

I was trying to make a dynamic table in Flutter/Dart where I can add new rows , delete some of them and edit their content .
I tried different packages but I couldn't figure out a way to make it .
Can someone help me ?

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There is no way to add columns and rows dynamically. When i tap on dataColumn need to add there subData to the DataColumn dynamically but can't find solution using syncfusion flutter datagrid. more information in attachment.if anyone has Solution please inform me.
here is the demo of what i need to implement :-
attachment
flutter_expandable_table ,syncfusion_flutter_datagrid this packages i have tried.
thank you all in advance.

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Please help me in how to set multiple headers and headerSpan in sap.m.table
I have to create a table using sap.m library only and my table should like below image
I tried using vboxes in column->header->vbox
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I've been experimenting with Flutter DataTables and everything works fine displaying a table.
However, I'm also looking to allow users to edit the table. I'm populating the table with textfields but am at a complete loss as to how to get tabular data back out of the table. Getting individual cell values isn't a problem, it's trying to get its row and column positioning that I'm unable to do.
Any suggestions?

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I create a DB where each table is a different project.
However, i am not sure how i would go about creating a form in which a user can choose a specific table (project) from a drop down menu and than be able to update/edit/modify the contents in the table.
Each table is standardized to contain exact column headers.
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How to display last 3 RECENTLY stored items in sqlite database - iPhone

In my app i am using Sqlite data base to store the data.
The stored items are displayed in a table (Main table).
Now i need to display RECENTLY added 3 items in another table (RecentTable).
I implemented recent table, but unable to display recently added data.
Please help..
Thanks in advance.

Have you thought about using an auto-incrementing column and then using that to get the three most recently added items? Something like:
select whatever
from mytable
order by auto_inc_column desc
limit 3