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$lst_tit checkdata$lst_titend$type_var
$lst_alias checkdatamodule<br>
$(lst_syntax)checkdata</tt> <br>
$lst_mean This command is used to check whether datamodules required by
the present module are installed on the server. It returns "yes" if every
required datamodule is installed or if no datamodule is required. Otherwise
it returns the address of the first missing datamodule.
<p>
If your module depends on datamodules to run, declare them in the INDEX
file, then
use this command to check the presence of the datamodules
. If
the answer is "no", you can take actions to lock further access to your
module and/or show error messages.