返回將小寫字符數(shù)據(jù)轉(zhuǎn)換為大寫的字符表達(dá)式。
UPPER ( character_expression )
character_expression
由字符數(shù)據(jù)組成的表達(dá)式。character_expression 可以是常量、變量,也可以是字符或二進(jìn)制數(shù)據(jù)的列。
varchar
character_expression 必須為可隱性轉(zhuǎn)換為 varchar 的數(shù)據(jù)類型。否則請(qǐng)使用 CAST 函數(shù)顯式轉(zhuǎn)換 character_expression。
本示例使用 UPPER 函數(shù)和 RTRIM 函數(shù)來(lái)返回整理過的大寫的作者姓名。
USE pubs
GO
SELECT UPPER(RTRIM(au_lname)) + ', ' + au_fname AS Name
FROM authors
ORDER BY au_lname
GO
下面是結(jié)果集:
Name
--------------------------------------------------------------
BENNET, Abraham
BLOTCHET-HALLS, Reginald
CARSON, Cheryl
DEFRANCE, Michel
DEL CASTILLO, Innes
DULL, Ann
GREEN, Marjorie
GREENE, Morningstar
GRINGLESBY, Burt
HUNTER, Sheryl
KARSEN, Livia
LOCKSLEY, Charlene
MACFEATHER, Stearns
MCBADDEN, Heather
O'LEARY, Michael
PANTELEY, Sylvia
RINGER, Albert
RINGER, Anne
SMITH, Meander
STRAIGHT, Dean
STRINGER, Dirk
WHITE, Johnson
YOKOMOTO, Akiko
(23 row(s) affected)
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