表语句： DROP TABLE IF EXISTS `yj_item_plan`; CREATE TABLE `yj_item_plan` ( `id` big...
CASE WHEN语句是一种条件逻辑表达式,用于在SQL查询中根据不同的条件返回不同的结果。它类似于编程语言中的if-then-else语句,但用于数据库查询。 优势 灵活性:可以根据多个条件返回不同的结果。 可读性:代码结构清晰,易于理解和维护。 性能:在某些情况下,使用CASE WHEN可以提高查询性能。
proc sql;selectUSUBJID,SITEID,(casewhenHEIGHTU="m"then(casewhenWEIGHTU="kg"thenHEIGHT/WEIGHT**2whenWEIGHTU="pound"thenHEIGHT/(WEIGHT*0.4536)**2else-1end)whenHEIGHTU="cm"then(casewhenWEIGHTU="kg"thenHEIGHT/100/WEIGHT**2whenWEIGHTU="pound"thenHEIGHT/100/(WEIGHT*0.4536)**2else-1end)els...
proc sql; create table test as select distinct store_id, max(date) as close_date, min(date) as open_date, count(distinct case when min(date) ge '12-OCT-2016'd and max(date) le '30-NOV-2019'd) then ) as /*not sure syntax here*/ count(distinct customer_id) as no...
PROC SORT PROC COMPARE SAS Others 创建Library 压缩数据集,节省空间 导出log 导出html 导出Excel 导出图片到Excel SAS Code 获得data中的所有variables PROC CONTENTS DATA=dataset; ODS OUTPUT VARIABLES=output_dataset (KEEP=VARIABLE); RUN; 创建新table并依据多个variables进行left join PROC SQL; CREATE TABLE ...
null是Java中的关键字。就像每种原始类型都有默认值一样，如int默认值为0，boolean的默认值为false，null是任何引用类型的默认值，不严格的说是所有object类型的默认值。
11. Exploring RETAIN statement, Mingxia Chen [Proc SQL]12. Slicing and Dicing the SAS® Data Set, William Murphy [POINT=]13. Performing Multiple Statements for Each Record in a SAS® Data Set, Edward Moore14. The Data Set statement: What are my options?, Mark Kirkham...
Deprecated Please use ShareServiceSasSignatureValues Creates a new ShareServiceSasQueryParameters object. Parameters: queryParamsMap - All query parameters for the request as key-value pairs removeSasParametersFromMap - When true, the SAS query parameters will be removed from queryParamsMa...
when i learnt R, I was worried more and then shifted to SAS. If you are using SQL you miss Moss of the raw power. SAS procs arenot the most I tuitive. Nothing yet, but I will certainly be vocal, if I have a bad experience. Showing Most Helpful Showing 25 of 59 reviews Sort ...
step stepId True string The identifier of the step to execute. name name string Name of the variable. value value The value of the variable. Returns This type describes the output values that are returned when a step is executed. Step Output stepOutput TriggersAgrandir...