Oracle查询表基本信息和主键信息

Oracle  查询表基本信息和主键信息

-- 查询表的基本信息

SELECT utc.column_name

     ,utc.data_type

     ,utc.data_length

     ,utc.data_precision

     ,utc.data_scale

     ,utc.nullable

     ,utc.data_default

     ,ucc.comments

     ,utc.table_name

  FROM dba_tab_columns utc

     ,dba_col_comments ucc

 WHERE utc.table_name = ucc.table_name

   AND utc.column_name = ucc.column_name

   AND utc.table_name IN ('your table name ')

 ORDER BY column_id;

-- 查询表的 主键 及主键对应的列

SELECT col.column_name

     ,con.constraint_name

  FROM dba_constraints con

     ,dba_cons_columns col

 WHERE con.constraint_name = col.constraint_name

   AND con.constraint_type = 'P'

   AND col.table_name = ' you table name';

--- 刘轶鹤