SQL>
SQL> BTITLE SKIP 2 CENTER 'Page ' SQL.PNO
SQL> BREAK ON table_name SKIP 1
SQL> COLUMN table_name FORMAT A20 HEADING 'Table'
SQL> COLUMN column_name FORMAT A22 HEADING 'Column'
SQL> COLUMN data_type FORMAT A10 HEADING 'Data|Type'
SQL> COLUMN data_length FORMAT 999999 HEADING 'Length'
SQL> COLUMN data_scale FORMAT 99999 HEADING 'Scale'
SQL> COLUMN nullable FORMAT A5 HEADING 'Null'
SQL>
SQL> SPOOL 4_1.lis
SQL> SELECT table_name, column_name, data_type,
2 DECODE(data_length, 22, data_precision,
3 data_length) data_length,
4 data_scale, nullable
5 FROM user_tab_columns
6 where rownum < 50
7 ORDER BY table_name, column_id;
no rows selected
SQL> SPOOL OFF
SQL>
SQL> SPOOL OFF
not spooling currently
SQL>
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