Commodore 128D - Page 301

RECORD
r-\
EXAMPLES:
10 READ A, B, C
20 DATA 3, 4, 5
READ the first three numeric
variables from the closest data
statement.
10 READ A$, B$, C$ READ the first three string
20 DATA JOHN, PAUL, GEORGE string variables from the nearest
data statement.
10 READ A, B$, C
20 DATA 1200, NANCY, 345
READ a numeric variable, a
string variable and another
numeric variable.
—Position relative file pointers
RECORD# logical file number, record number [,byte
number]
This statement positions a relative file pointer to select any byte
(character) of any record in the relative file. The logical file number
can be in the range between 0 and 255. The record number can be
in the range 0 through 65535. Byte number is in the range 1 through
254. See your disk drive manual for details about relative files.
When the record number valoe-is set higher than the last record
number in the file, the following occurs:
For a write (PRINT#) operation, additional records are created to
expand the file to the desired record number.
For a read (INPUT#) operation/a null record is returned and a
"RECORD NOT PRESENT ERROR" occurs.
EXAMPLES:
10 OPEN 2,8,2"CUSTOMER,R,W"
20 RECORD#2,10,1
30 PRINT#2,A$
40 CLOSE 2
This example opens an existing relative file called "CUSTOMER" as
file number 2 in line 10. Line 20 positions the relative file pointer at
the first byte in record number 10. Line 30 actually writes the data,
A$, to file number 2.
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BASIC 7.0 ENCYCLOPEDIA—Basic Commands and Statements