REWIND Function

Positions the data set pointer at the beginning of a SAS data set.

Category:	SAS File I/O
Restriction:	This function is not valid on the CAS server.

Table of Contents

Syntax

REWIND(data-set-id)

Required Argument

data-set-id

is a numeric variable that specifies the data set identifier that the OPEN function returns.

Restriction

The data set cannot be opened in IS mode.

Details

REWIND returns 0 if the operation was successful, ≠0 if it was not successful. After a call to REWIND, a call to FETCH reads the first observation in the data set.

If there is an active WHERE clause, REWIND moves the data set pointer to the first observation that satisfies the WHERE condition.

Example

This example calls FETCHOBS to fetch the 10th observation in the data set MYDATA. Next, the example calls REWIND to return to the first observation and fetch the first observation.

%let dsid=%sysfunc(open(mydata, i));
%let rc=%sysfunc(fetchobs(&dsid, 10));
%let rc=%sysfunc(rewind(&dsid));
%let rc=%sysfunc(fetch(&dsid));

REWIND Function

Syntax

Required Argument

data-set-id

Details

Example

See Also