ADD column-definition, column-definition,… DROP column-name, column-name,… MODEIFY column-definition, column-definition, … 例1.增加列 proc sql; alter table airline.payrollmaster add Bonus num format=comma10.2 Level char(3); 例2.删除列 proc sql; alter table airline.payrollmaster drop Destin...
PROC SQL; TITLE "Generating a new column"; select cars.Make,cars.Model,cars.MSRP,cars.msrp*0.06 as tax from sashelp.cars; quit; 注意SELECT从句中列的先后顺序决定了输出报表中他们的输出顺序 2.3 使用SQL对行进行操作 1.DISTINCT关键字 不输出重复的行,紧跟在SELECT之后,一个SELECT从句只能有一个。
procsql;altertablework.payrollmaster4addBonus num format=comma10.2,Levelchar(3); quit; /*删除列*/ procsql;altertablework.payrollmaster4dropBonus,Level; quit; You can use the MODIFY clause to change a column's 1:length (column width) - for a character column only 2:informat 3:format 4:...
procsql; createtableshoesrankas select*, (case whensales100000thengood elsebad end)asrank from; quit; 删除行 语法: Deletefromtable-name Whereexpression; 例: procsql; Deletefromshoesrank WhereRegion=Africa; quit; 改变列 语法: AlterTabletable-name Addcolumn-definition,column-definition,… Dropcolum...
在SAS的proc sql中,左连接中的"IF"条件是一种用于在连接两个表时,根据特定条件筛选数据的语句。它允许我们在连接过程中使用条件来过滤结果。 左连接是一种连接操作,它返回左表中的所有记录以及...
其中,sex='M'中的等于,也可以写成sex eq 'M',其中的eq代表等于(此外ne代表不等于) (4)set-in 临时变量 /*set-in-临时单个变量*/ /*可以说是SAS跟R最大的区别的一点就是...排序:proc sort data=逻辑库.数据集; by=变量名称;run;合并:merge 数据集1 数据集2;by x;注意这里合并需要by,同时By是...
SAS 9.1 SQL Procedure User's Guide Learn the basics of using PROC SQL, including retrieving data from single and multiple tables, selecting specific data from tables, subsetting, ordering, and summarizing data, updating tables, combining tables to create new tables and useful reports, performing ...
Column Row Fudan_R_Module_0208105 Contents Overview ResearchModules:SQL SASTerminologyandSQLTerminology MainFunctionsandSyntax SummaryFunctions PROCSQLOptions SASDictionary Fudan_R_Module_020810 SQL–MainFunctionsandSyntax MainFunctions •CreateanddeleteSASdatafiles,viewsandindexes ...
PROC REPORT how to Modify style attribute for a spanning header column ('Left Atrial Volume (mL)' HCVLAEVS_: ); I want to change the background color or other attribute for the spanning column header 'Left Atrial Volume (mL)' My output destination is ODS EXCEL. Found the answer: Set ...
SAS中的SQL语句完全教程之一:SQL简介与基本查询功能本系列全部内容主要以SQLProcessingwiththeSASSystemCourseNotes为主进行讲解,本书是在网上下载下来的,但忘了是在哪个网上下的,故不能提供下载链接了