UniBasic Commands Reference - Rocket Software

WRITESEQ
Syntax
WRITESEQ expr [APPEND] {ON | TO} seq.file.var [ON ERROR statements]
{THEN statements [END] | ELSE statements [END]}
Description
The UniBasic WRITESEQ command writes an expression as a record on a
sequential file at the current record pointer position.
Note: Before you use WRITESEQ, you must open the file by using the OSOPEN or
OPENSEQ command.
Tip: Use the READSEQ command to position the record pointer before using
WRITESEQ.
If the file is a named pipe, you cannot use WRITESEQ to write to it. You must use the
OSBWRITE command.
WRITESEQ cannot immediately write a record to disk. UniData stores records in a
buffer until the buffer is full.
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 WRITESEQ process at
the end-of-file mark. When APPEND is included, and no file
exists, UniData creates a new file.
ON | TO seq.file.var Specifies a sequential file to receive the expression.
WRITESEQ Parameters
WRITESEQ 1-908