How do I create a new variable in SAS PROC SQL?

With a PROC SQL procedure you first define the value of your variable, then you write the AS keyword, followed by the name of your new variable. After the name of the variable, you can define the variable’s format.

Can you create a new variable in PROC SQL?

PROC SQL can sort, summarize, subset, join (merge), and concatenate datasets, create new variables, and print the results or create a new table or view all in one step!

What does PROC SQL mean in SAS?

PROC SQL is a powerful Base SAS Procedure that combines the functionality of DATA and PROC steps into a single step. PROC SQL can be used to retrieve, update, and report on information from SAS data sets or other database products.

How do you drop a variable in PROC SQL SAS?

DROP and KEEP PROC SQL queries require the SELECT statement to specify the variables to be included in the output destination. You have the option to explicitly state which variables to keep or use the * wildcard as a short-cut to select all fields from some or all tables involved in the query.

How to create a new variable using proc SQL-SAS?

欢迎来到SAS中文社区！ In my following data I need to create a flag variable based on a few conditions. Please help in my code. I need to flag OBS by group id and visit where pt between 0 and 1 and date1 less than date2 and max value of value variable . For the data I need to flag OBS 2 with value=3 as it is the max value. please help thanks.

How to infer the names of new variables in SAS?

Notice how SAS does not need to be told explicitly the names and types of the new variables; it is able to infer that test1 is a character variable (because of the quotation marks), and that test2 is a numeric variable (because of the unquoted numeric value).

How to achieve inner join in Sas merge?

To achieve the inner join using SAS merge, first we have to understand the concept of IN= option, which is especially useful when merging and concatenating data sets. IN= option tells SAS to create an “ indicator variable ” having the value 0 or 1 depending on whether or not the current observation comes from the input data set.

How are functions used in the data step in SAS?

SAS has numerous built-in functions that allow you to manipulate existing variables and create new variables. Functions are used in a data step. There are too many functions to explore all of them in detail here, but we’ll go through several useful ones. A list of all SAS functions can be found in the SAS Help and Documentation Guide.