Thursday 16 November 2023

Exporting and importing table data and definations

 Exporting and importing table data and definations:

Export of table:

you can export and import table data between systems and hosts. 

* for row- based data tables, you can export the data in comma-delimited format(CSV).
* for column - based data tables, you can also choose a binary format.
    Binary formats tend to be smaller in size and also faster, but this option should only be used if you're        moving data tables between SAP HANA systems (eg: from production to a development box).

To export tables, go to the systems list in SAP HANA studio, navigate to the table(s) you want data from and select EXPORT from the right- click context menu for the table.This will take you to an export wizard (see below screenshot).



that will guide you through the process of selecting tables and available formats.
you can also choose to export only the table definations(catalog) or include the data as well (catalog and data).

select where you want to store the file and how many thrreads you want to use for the export. The more threads you select, the faster the export will execute. However, selecting too many threads may impact system performance for others, so keep it small (one to five) unless you do this on a large system, during off times,or on the systems with little usage.The export  wizard will save the file where you specifiied in the format selected.



Import of table: 


To import table(s) into SAP HANA from the file, simply right- click on the catalog in the systems list in the SAP HANA studio.
Select IMPORT from the context menu.
After entering the file path where the file is located, you can select the table you want.you may have to type in the names of the tables if you're using a remote host.The last import steps tell the system the format of the file (CSV or binary) and enter the threads to be used. The table is now automatically imported in to your system and can be seen in the systems.


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