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Table column Datatype modification

Posted on Aug 23, 2016 at 06:50 AM 314 Views

Dear Contributors,


Can we change the size of the datatype using Alter table command, of sap hana custom table ? I mean can't we increase the size of character datatype ?


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  • author's profile photo Florian Pfeffer
    Florian Pfeffer
    Posted on Aug 23, 2016 at 07:09 AM
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    Increasing the size of character type columns is possible using the ALTER TABLE statement. Check the online help ALTER TABLE - SAP HANA SQL and System Views Reference (also with the mentioned limitations).

    For instance, if a table with a nvarchar(100) typed column is created ...

    CREATE COLUMN TABLE "MISC"."TEST"(
  id integer primary key,
  value nvarchar(100)
);

    ... the size can be increased to nvarchar(200) using statement

    ALTER TABLE "MISC"."TEST" ALTER (value nvarchar(200));

    Regards,

    Florian

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