Взято с asktom
Here is a working example. I dump dates in a non-standard format (but one that saves all
of the fields). you can modify as you wish.
create or replace procedure dump_table_to_csv(
p_tname in varchar2,
p_dir in varchar2,
p_filename in varchar2
) is
l_output utl_file.file_type;
l_theCursor integer default dbms_sql.open_cursor;
l_columnValue varchar2(4000);
l_status integer;
l_query varchar2(1000) default 'select * from ' || p_tname;
l_colCnt number := 0;
l_separator varchar2(1);
l_descTbl dbms_sql.desc_tab;
begin
l_output := UTL_FILE.FOPEN(p_dir,p_filename,'w',2048);
execute immediate 'alter session set nls_date_format=''dd-mon-yyyy hh24:mi:ss'' ';
dbms_sql.parse( l_theCursor, l_query, dbms_sql.native );
dbms_sql.describe_columns( l_theCursor, l_colCnt, l_descTbl );
for i in 1 .. l_colCnt loop
utl_file.put( l_output, l_separator || '"' || l_descTbl(i).col_name || '"' );
dbms_sql.define_column( l_theCursor, i, l_columnValue, 4000 );
l_separator := ';';
end loop;
utl_file.new_line( l_output );
l_status := dbms_sql.execute(l_theCursor);
while ( dbms_sql.fetch_rows(l_theCursor) > 0 ) loop
l_separator := '';
for i in 1 .. l_colCnt loop
dbms_sql.column_value( l_theCursor, i, l_columnValue );
utl_file.put( l_output, l_separator || l_columnValue );
l_separator := ';';
end loop;
utl_file.new_line( l_output );
end loop;
dbms_sql.close_cursor(l_theCursor);
utl_file.fclose( l_output );
execute immediate 'alter session set nls_date_format=''dd-MON-yy'' ';
exception
when others then
execute immediate 'alter session set nls_date_format=''dd-MON-yy'' ';
raise;
end;
dump_table_to_csv( 'emp', '/tmp', 'tkyte.emp' );