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space(int_expr) Éú³Éint_expr¸ö¿Õ¸ñ
replicate(char_expr,int_expr) ¸´ÖÆ×Ö·û´®int_expr´Î
reverse(char_expr) ·´×ª×Ö·û´®
stuff(char_expr1,start,length,char_expr2) ½«×Ö·û´®char_expr1ÖÐµÄ´Ó start¿ªÊ¼µÄlength¸ö×Ö·ûÓÃchar_expr2´úÌæ
ltrim(char_expr) rtrim(char_expr) È¥µô¿Õ¸ñ
ascii(char) char(ascii) Á½º¯Êý¶ÔÓ¦,È¡asciiÂë,¸ù¾ÝasciiÂðÈ¡×Ö·û
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charindex(char_expr,expression) ·µ»Øchar_exprµÄÆðʼλÖÃ
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locate(substr,str,pos) ·µ»Ø×Ó´®substrÔÚ×Ö·û´®strµÚÒ»¸ö³öÏÖµÄλÖÃ
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abs(numeric_expr) Çó¾ø¶ÔÖµ
ceiling(numeric_expr) È¡´óÓÚµÈÓÚÖ¸¶¨ÖµµÄ×îСÕûÊý
exp(float_expr) È¡Ö¸Êý
floor(numeric_expr) СÓÚµÈÓÚÖ¸¶¨ÖµµÃ×î´óÕûÊý
power(numeric_expr,power) ·µ»Øpower´Î·½
rand([int_expr]) Ëæ»úÊý²úÉúÆ÷
round(numeric_expr,int_expr) °²int_expr¹æ¶¨µÄ¾«¶ÈËÄÉáÎåÈë
sign(int_expr) ¸ù¾ÝÕýÊý,0,¸ºÊý,,·µ»Ø+1,0,-1
sqrt(float_expr) ƽ·½¸ù
exp(float x):ÇóeµÄx´ÎÃÝ
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atan(float x):Çóx£¨»¡¶È±íʾ£©µÄ·´ÕýÇÐÖµ
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datename(datepart,date_expr) ·µ»ØÃû³Æ
datepart(datepart,date_expr) È¡ÈÕÆÚÒ»²¿·Ý
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