2026-03-12 20:23:15

timhall/miscellaneous/table_defs.sql

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+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/miscellaneous/table_defs.sql
+-- Author       : Tim Hall
+-- Description  : Lists the column definitions for the specified table.
+-- Call Syntax  : @table_defs (tablee-name or all)
+-- Last Modified: 24/09/2003
+-- -----------------------------------------------------------------------------------
+COLUMN column_id FORMAT 99
+COLUMN data_type FORMAT A10
+COLUMN nullable FORMAT A8
+COLUMN size FORMAT A6
+BREAK ON table_name SKIP 2
+SET PAGESIZE 0
+SET LINESIZE 200
+SET TRIMOUT ON
+SET TRIMSPOOL ON
+SET VERIFY OFF
+
+SELECT table_name,
+       column_id,
+       column_name,
+       data_type,
+       (CASE
+         WHEN data_type IN ('VARCHAR2','CHAR') THEN TO_CHAR(data_length)
+         WHEN data_scale IS NULL OR data_scale = 0 THEN TO_CHAR(data_precision)
+         ELSE TO_CHAR(data_precision) || ',' || TO_CHAR(data_scale)
+       END) "SIZE",
+       DECODE(nullable, 'Y', '', 'NOT NULL') nullable
+FROM   user_tab_columns
+WHERE  table_name = DECODE(UPPER('&1'), 'ALL', table_name, UPPER('&1'))
+ORDER BY table_name, column_id;
+
+SET PAGESIZE 14
+SET LINESIZE 80