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SQL code:

CREATE TABLE TUser
(
FName CHAR(8000),
FAge INT,
FSex bit
)
INSERT INTO TUser
SELECT 'ÕÅÈý',18,1
UNION ALL
SELECT 'ÀîËÄ',20,1
UNION ALL
SELECT 'ÍõÎå',32,1
UNION ALL
SELECT 'Âé×Ó',23,1



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SQL code:

SET STATISTICS IO ON
SELECT * from TUser

(4 ÐÐÊÜÓ°Ïì)
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SQL code:
EXEC sp_spaceused N'TUser'

dateΪ32K index_size Ϊ8k
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SQL code:
CREATE INDEX idx_age ON TUser(FAge)

È»ºóÔٲ鿴index_sizeΪ24K

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SQL code:
SELECT * from TUser WHERE FAge=20


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