--LoginIdの「ct21admin」を「ecadmin」に変更
--GroupCodeの「ct21master」を「ecmaster」に変更
UPDATE ctxLoginF
SET LoginId = REPLACE(LoginId, 'ct21', 'ec')
	, GroupCode = REPLACE(LoginId, 'ct21', 'ec')
WHERE LoginId LIKE 'ct21%'
	AND GroupCode LIKE 'ct21%'

--GroupCodeの「ct21master」を「ecmaster」に変更
UPDATE ctxGroupM
SET GroupCode = REPLACE(GroupCode, 'ct21', 'ec')
WHERE GroupCode LIKE 'ct21%'