Используя Sql Server, вы можете попробовать что-то вроде
DECLARE @Table TABLE(
ID INT,
[description] VARCHAR(100),
Age VARCHAR(10)
)
INSERT INTO @Table (ID, [description]) SELECT 1, 'Age 4+ This...'
INSERT INTO @Table (ID, [description]) SELECT 2, 'Age 7+ Once...'
INSERT INTO @Table (ID, [description]) SELECT 3, 'Foo...'
UPDATE @Table
SET [description] = REPLACE([description],LEFT([description],CHARINDEX(' ', [description], CHARINDEX(' ',[description])+1)), ''),
Age = REPLACE(LEFT([description],CHARINDEX(' ', [description], CHARINDEX(' ',[description])+1)), 'Age ', '')
WHERE LEFT([description], 4) = 'Age '
SELECT *
FROm @Table