UniBasic Commands Reference - Rocket Software

WRITESEQF
Syntax
WRITESEQF expr [APPEND] {ON | TO} seq.file.var [ON ERROR statements]
{THEN statements [END] | ELSE statements [END]}
Description
The UniBasic WRITESEQF command writes an expression as a record on a
sequential file from a current record pointer position and forces UniData to immediately
write the data to the disk.
Note: Before you use WRITESEQF, you must open the file by using the OSOPEN or
OPENSEQ command.
Tip: Use the READSEQ command to position the record pointer before using
WRITESEQF.
If the file is a named pipe, you cannot use WRITESEQF to write to it. You must use
the OSBWRITE command.
Use the READSEQ command to position the record pointer before using
WRITESEQF.
Parameters
The following table describes each parameter of the syntax.
Parameter Description
expr Specifies an expression to write as a record.
APPEND Use the APPEND option to start the WRITESEQF process at
the end-of-file mark. If you use the APPEND option in a file
that does not contain data, UniData creates a new file.
ON | TO seq.file.var Specifies a sequential file variable to receive the expression.
WRITESEQF Parameters
WRITESEQF 1-910