11.04.2013 Views

UniBasic Commands Reference - Rocket Software

UniBasic Commands Reference - Rocket Software

UniBasic Commands Reference - Rocket Software

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Parameter Description<br />

ON ERROR statements Specifies statements to execute if the READXBCK statement<br />

fails with a fatal error because the file is not open, an I/O error<br />

occurs, or UniData cannot find the file.<br />

If you do not specify the ON ERROR clause and a fatal error<br />

occurs, the program terminates.<br />

THEN statements END THEN executes if the read is successful. END is required to<br />

terminate multiline THEN statements.<br />

ELSE statements END ELSE executes if the read is not successful or the record does not<br />

exist. END is required to terminate multiline ELSE statements.<br />

Related <strong>Commands</strong><br />

<strong>UniBasic</strong><br />

READBCK, READBCKL, READBCKU, READFWD, READFWDL,<br />

READFWDU, READXFWD, SELECTINDEX, SETINDEX<br />

UniData<br />

READXBCK Parameters (continued)<br />

BUILD.INDEX, CREATE.INDEX – For information, see the UniData <strong>Commands</strong><br />

<strong>Reference</strong>.<br />

READXBCK 1-657

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!