【SAS NOTES】kindex判断字符串中是否含某子字符串& 用where在data步中选择部分数据

Syntax
KINDEX(source, excerpt)

Arguments

source
specifies the character expression to search.

excerpt
specifies the string of characters to search for in the character expression.

Tip: Enclose a literal string of characters in quotation marks.

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Details

The KINDEX function searches source, from left to right, for the first occurrence of the string that is specified in excerpt, and returns the position in source of the string's first character. If the string is not found in source, KINDEX returns a value of 0. If there are multiple occurrences of the string, KINDEX returns only the position of the first occurrence.

 1 data guanhui.buedetail_same;
 2     set guanhui.buydetail (where=(KINDEX(serv_number,'1398888')=0));
 3     drop buy_date buy_clock buy_year buy_month buy_day buy_hour buy_minute  pay_date;
 4     format buy_time datetime18.;
 5     month=MONTH(datepart(buy_time));
 6     day=DAY(datepart(buy_time));
 7     hour=HOUR(buy_time);
 8     weekday=WEEKDAY(datepart(buy_time));
 9     quter=QTR(datepart(buy_time));
10 run;