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PL/SQL Print Out Ref Cursor Returned By A Stored Procedure

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codeling 1595 - 6639
@2016-09-15 14:32:55

The following PL/SQL can be used to print out the resulting row fetch from a ref cursor that is returned from a stored procedure (OUT variable).

declare

result_cv sys_refcursor;

procedure print_ref_cursor

( p_query in out sys_refcursor,

p_date_fmt in varchar2 default 'yyyy/mm/dd hh24:mi:ss' )

is

l_theCursor integer;

l_columnValue varchar2(4000);

l_descTbl dbms_sql.desc_tab2;

l_colCnt number;

l_date date;

begin

l_theCursor := dbms_sql.to_cursor_number( p_query );

dbms_sql.describe_columns2

( l_theCursor, l_colCnt, l_descTbl );

-- define all columns to be cast to varchar2's, we

-- are just printing them out

for i in 1 .. l_colCnt loop

if ( l_descTbl(i).col_type in ( 12, 178, 179, 180, 181, 231 ) )

then

dbms_sql.define_column

(l_theCursor, i, l_date );

else

dbms_sql.define_column

(l_theCursor, i, l_columnValue, 4000);

end if;

end loop;

while ( dbms_sql.fetch_rows(l_theCursor) > 0 )

loop

for i in 1 .. l_colCnt loop

if ( l_descTbl(i).col_type in ( 12, 178, 179, 180, 181, 231 ) )

then

dbms_sql.column_value( l_theCursor, i, l_date );

l_columnValue := to_char( l_date, p_date_fmt );

else

dbms_sql.column_value

( l_theCursor, i, l_columnValue );

end if;

dbms_output.put_line

( rpad( l_descTbl(i).col_schema_name || '.' ||

l_descTbl(i).col_name, 30 ) || ': ' || nvl(l_columnValue, 'NULL') );

end loop;

dbms_output.put_line( '=============================================' );

end loop;

dbms_sql.close_cursor( l_theCursor );

end;

begin

dbms_output.enable(null);

MySchema.MyPackage.MyStoredProcudure(in_parm_list, refCursor);

print_ref_cursor( result_cv );

end;

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