Get the types of columns in a select statement
Hello
Is there a way to get the types of columns that results in a select statement?
For example to force an analysis on this topic and then look for the types of columns resulting in the view v$?
Best regards
Klaus Mogensen
declare c number; d number; col_cnt integer; rec_tab dbms_sql.desc_tab; col_num number; begin c := dbms_sql.open_cursor; dbms_sql.parse(c, 'select dummy, 33 x, sysdate now from dual', dbms_sql.native); dbms_sql.describe_columns(c, col_cnt, rec_tab); col_num := rec_tab.first; while col_num is not null loop dbms_output.put_line( rec_tab(col_num).col_name || ' ' || case rec_tab(col_num).col_type when 1 then 'varchar2' when 2 then 'number' when 12 then 'date' else '???? ' || rec_tab(col_num).col_type end ); col_num := rec_tab.next(col_num); end loop; dbms_sql.close_cursor(c); end; / DUMMY varchar2 X number NOW date
Tags: Database
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