如果需求稍微复杂一些,比如:筛选试验组、FAS 集、存在合并用药、实验室检查基线异常无临床意义的不良事件的观测,使用 DATA 步虽然也能实现,但会使代码更加复杂且难以理解,使用 SELECT 子查询语句就可以很直观地体现代码的真实意图: proc sql noprint;create table test3asselect usubjid,aedecodfromadam.adae where...
【例子】 data _null_; Text='CHUSINA, us, US, Denmark'; X1=find(Text,'US','i',5); X2=find(Text,'US',5); X3=find(Text,'US'); PUT X1= X2= X3=; run; 结果是:X1=10 X2=14 X3=3 7.INDEX [功能]返回字符串中某个字符或字符串的位置 【例子】data _null_; a = 'ABC.DEF(...
this discovery process can search libraries, open tables, and execute views. Unlike other SAS procedures and the DATA step, PROC SQL can mitigate this process by optimizing the query before the discovery
A SAS array provides a way to reference a group of columns for processing in the DATA step. By grouping columns into an array, you can process the variables in a DO loop. Each column that is grouped together in an array is referred to as anelement. You can reference an element in the...
Constructing Begin-End Date Intervals from Event or As-of Dates in a SAS® DATA StepThe challenge: you have a SAS(R) table that contains a series of event or as-of dates or datetimes, and you want tocreate a version of the table that includes date intervals: [begin date, end date...
1:The PROC SQL stepdoes not require a RUN statement. PROC SQL executes each query automatically 2:Unlike many other SAS procedures, PROC SQLcontinues to run after you submit a step. To end the procedure, you must submit another PROC step, a DATA step, or a QUIT statement ...
1:The PROC SQL stepdoes not require a RUN statement. PROC SQL executes each query automatically 2:Unlike many other SAS procedures, PROC SQLcontinues to run after you submit a step. To end the procedure, you must submit another PROC step, a DATA step, or a QUIT statement ...
Step 1 is to filter and sort the data. Data is sorted only by product for this example. Note the order of the Subsidiary in the table. United States Steel Corporation 10 PROC TRANSPOSE – Using Enterprise Guide Step 2. Tasks > Data > Transpose Drag and drop variables to the Task roles...
hedata partconsists of zero or more character and numeric values. 概述: Hash Tablesare in memory data structures. Hash Tablescan be used forlookups,sorting,mergingand to facilitate complex data manipulations by removing the disk I/O associated with frequent query and update statements. ...
Run step Executes the step with the specified input values. The outputs variable in the reply contains the output of the execution.Run stepOperation ID: executeStep Executes the step with the specified input values. The outputs variable in the reply contains the output of the execution. Paramete...