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Oracle common view table structure commands

Get the table:

Select table_name from user_tables; / / current user's table

Select table_name from all_tables; / / tables for all users

Select table_name from dba_tables; / / including system tables

Select table_name from dba_tables where owner=' user name'

User_tables:

Table_name,tablespace_name,last_analyzed et al.

Dba_tables:

Ower,table_name,tablespace_name,last_analyzed et al.

All_tables:

Ower,table_name,tablespace_name,last_analyzed et al.

All_objects:

Ower,object_name,subobject_name,object_id,created,last_ddl_time,timestamp,status et al.

Get table fields:

Select * from user_tab_columns where Table_Name=' user Table'

Select * from all_tab_columns where Table_Name=' user Table'

Select * from dba_tab_columns where Table_Name=' user Table'

User_tab_columns:

Table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id et al.

All_tab_columns:

Ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id et al.

Dba_tab_columns:

Ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id et al.

Get table comments:

Select * from user_tab_comments

User_tab_comments:table_name,table_type,comments

Accordingly, there are dba_tab_comments,all_tab_comments, which have more ower columns than user_tab_comments.

Get field comments:

Select * from user_col_comments

User_col_comments:table_name,column_name,comments

At this point, I believe that everyone on the "Oracle commonly used to view table structure commands" have a deeper understanding, might as well to the actual operation of it! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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