check the existnace file before using the HOST command
Dear all:We use the version of forms 6i 6.0.8.22.1
I wrote after encoding to move a local system file to another location: following coding works to move the file.
DECLARE
in_file_name VARCHAR2 (100);
in_file_path VARCHAR2 (100);
out_file_path VARCHAR2 (100);
the_command VARCHAR2 (2000);
BEGIN
in_file_name: = pk_parameter.setting('IMGSFILE');
in_file_path: = pk_parameter.setting('IMGSPATH');
out_file_path: = pk_parameter.setting('IMGTPATH');
the_command: = 'move' | in_file_path | in_file_name |
' '|| out_file_path | out_file_name;
Synchronize;
Host (the_command, NO_SCREEN);
IF this is Form_Success THEN
Message ('error - file is not moved');
ON THE OTHER
Message ("file moved successfully");
END IF;
END;
above code returns TRUE in stand conditions if the file is exist in the given folder or not? I checked it twice.
1: place the file in the folder source and then run the coding, it returned message like "file moved successfully.
2nd: the source folder is empty, when I have executed the coding, it returned message like "file moved successfully.
Now I want to check before running the command move, if the source files exist in the source folder, if yes, then move on the other on-screen message and raise form_trigger_failure;
any idea of guru?
Kind regards
Hassan Raza
You must use the command line to do:
host('cmd /c move '||in_file_path||in_file_name||' '||out_file_path||out_file_name, no_screen);
to check if the file has been properly moved, you can use text_io:
declare
xfile text_io.file_type;
begin
xFile := text_io.fopen(out_file_path||out_file_name, 'R');
text_io.fclose(xFile);
--file exists
exception
when others then
if text_io.is_open(xFile) then
text_io.fclose(xFile);
end if;
-- file does not exist, so moving was not successful
end;
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Tags: Oracle Development
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