substring:is a character constant, variable, or expression that specifies the substring of characters to count instring. modifiers:修饰符,i/t,i表示忽略大小写,t表示减除首尾空格。可选。 148 data xaa; 149 ucs = count('function','n'); ...
FIND(string,substring<,modifiers><,startpos>) string是要在其中搜索的字符串或字符变量名称, substring是要在字符串中搜索的字符串。返回substring首次在string中出现的位置,若未找到,则返回0。 startpos指定从 string的何处开始搜索substring,正值从左至右,负值反向。 Modifier=I,搜索时忽略大小写,默认区分大小写。
SQL中CHARINDEX()/INSTR()函数和SUBSTRING()/SUBSTR()函数 一.SQLServer中的CHARINDEX() 和ORACLE中的INSTR()函数 1.INSTR(C1,C2[,I[,J]]) [功能]在一个字符串中搜索指定的字符,返回发现指定的字符的位置; [说明]多字节符(汉字.全角符等),按1个字符计算 [参数] C1 被搜索的字符串 C2 希望搜索的字符...
The SAS(R) SUBSTR function differs from the substring function in other programming languages as it can be used on either side of the assignment operator. This paper demonstrates its practical usage by building programs to separate and manipulate text. Specific topics include: Proper Syntax Use; ...
FIND Function Searches for a specific substring of characters within a character string. FINDC Function Searches a string for any character in a list of characters. FINDW Function Returns the character position of a word in a string, or returns the number of the word in a string. ...
SUBSTR(right of = )Function Extracts a substring from an argument. 返回X字符串的一个子串 Syntax <variable=>SUBSTR(string, position<,length>) Details In a DATA step, if the SUBSTR (right of =) function returns a value to a variable that has not prev...
SUGI 29 Tutorials Paper 265-29 An Introduction to Perl Regular Expressions in SAS 9 Ron Cody, Robert Wood Johnson Medical School, Piscataway, NJ Introduction Perl regular expressions were added to SAS in Version 9. SAS regular expressions (similar to Perl regular expressions but using a different...
COMPLEV Function Returns the Levenshtein edit distance between two strings. COMPRESS Function Returns a character string with specified characters removed from the original string. COUNT Function Counts the number of times that a specified substring appears within a character string. COUNTC Function...
2017-08-08 15:27 −总结多个字符串常用函数 1.Substr(s,p,n) 【功能】:字符串的替换和字符串的提取 【语法】: 1.(right of =) Function,提取字符:Substr(s,p,n)从字符串s中的第p个字符开始提取n个字符的子串。2 (left of =) Function,字符替换:Sub... ...
set myfield = somefunction(myfield,/'abc','ccc','xx'/,'') Thank you With some more poking around, came up with below: data mytable2; set mytable; n_myfield = myfield; length word $50; do word = 'abc','ccc','xx';