UniBasic Commands Reference - Rocket Software

Parameter Description
Example
In the following example, the program statement writes the variable CHK.WRITE to
the file PAYROLL. All records currently in the output buffer are written to disk along
with this record.
1-911 UniBasic Commands Reference
ON ERROR statements Specifies statements to execute if the WRITESEQF statement
fails with a fatal error because the file is not open, an I/O error
occurs, or UniData cannot find the file.
If you do not specify the ON ERROR clause and a fatal error
occurs, the program terminates.
If you specify the ON ERROR clause and UniData cannot find
the end-of-file mark, the ELSE clause executes.
THEN statements END THEN executes if the WRITESEQF is successful. END is
required to terminate multiline THEN statements.
ELSE statements END ELSE executes if the WRITESEQF is not successful or the
record (or ID) does not exist. END is required to terminate
multiline ELSE statements.
WRITESEQF CHK.WRITE ON PAYROLL ELSE GOTO 100:
Related Commands
UniBasic
WRITESEQF Parameters (continued)
CLOSESEQ, OPENSEQ, OSBREAD, OSBWRITE, OSCLOSE, OSDELETE,
OSOPEN, READSEQ, WEOFSEQ, WRITESEQ