2. When you reference a macro variable in a SAS program, SASreplaces the reference with the text valuethat has been assigned to that macro variable. By substituting text into programs, SAS macro variables make your pr...
Macro variable value 长度不超过64000 characters. Local & Global : Local macro variable is defined insides the macro, which can be used only in the macro. Global macro is defined outsides the macro, which can be used exerywhere in the program. Local macro variable 可以被转换成 Global macro...
Re: macro variable in sql statement Posted 06-15-2022 04:35 PM (728 views) | In reply to HB @HB wrote:Really SAS? Really? You're going to do that to me? Single vs double quotes. LOL.Thanks a ton, works a treat. Think it through. How else so you make a string that actual...
A macro variable does not belong to a data set, and its value is always character. This value could be a variable name, a numeral, or any text that you want substituted into your program. (宏变量不属于数据集而变量都是属于数据集) 2.按定义方式可分为两类: 1).Automatic Macro Variables:...
The COMPBL function removes multiple blanks in a character string by translating each occurrence of two or more consecutive blanks into a single blank. EXAMPLE: 2、COMPRESS(<, chars><, modifiers>) 参数: Source specifies a character constant, variable, or exp...
%macro getMaxVal(indata, invar); /* returns maxium value of a variable from a dataset*/ %if %symexist(_max_) %then %let _max_ =; %global _max_; proc sql noprint; select max(&invar) into: _max_ from &indata; quit;
宏处理器(macro processor)会进行如下工作 examines these tokens requests additional tokens as necessary performs the action indicated. 对于宏变量,宏处理器会做以下几件事 creates a macro variable in the symbol table and assigns a value to the variable ...
It is a matter of timing, a macro term used for when the macro compiler resolves the macro var. You could use the '&&' in front of your macro var. This will resolve to the macro var at compile time. At run-time the value you want would be inserted. Of course this is too complic...
2. When you reference a macro variable in a SAS program, SAS replaces the reference with the text value that has been assigned to that macro variable. By substituting text into programs, SAS macro variables make your programs more reusable and dynamic 3. 判断宏变量定义的结束是以分号为分...
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