Try this:

UPDATE PortalLocalization
     SET
        FooterText = 'Ton Hermes, Patrijzenhof 32, 1742 BH Schagen, Netherlands',
        LastModifiedByUserID = 2,
        LastModifiedOnDate = getdate()
     WHERE PortalId = 26
GO

Before executing the command, replace the UserId value with your UserId. Also, if your DNN installation uses a different {databaseOwner} then dbo or a non-blank {objectQualifier} be sure to adjust the table name appropriately. Note that since PortalId is an int, do not use single quotes around it's value.

Note also that this will update all entries for PortalId 26 in the table to the same FooterText regardless of the CultureCode.

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Bill, WESNet Designs
Team Lead - DotNetNuke Gallery Module Project (Not Actively Being Developed)
Extensions Forge Projects . . .
Current: UserExport, ContentDeJour, ePrayer, DNN NewsTicker, By Invitation
Coming Soon: FRBO-For Rent By Owner