You are viewing a plain text version of this content. The canonical link for it is here.

Posted to derby-dev@db.apache.org by "Lukas Eder (JIRA)" <ji...@apache.org> on 2018/09/21 08:56:00 UTC

[jira] [Created] (DERBY-7008) Add support for COMMENT ON [ object ] IS '...' statements

Lukas Eder created DERBY-7008:
---------------------------------

             Summary: Add support for COMMENT ON [ object ] IS '...' statements
                 Key: DERBY-7008
                 URL: https://issues.apache.org/jira/browse/DERBY-7008
             Project: Derby
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 10.14.2.0
            Reporter: Lukas Eder


A lot of RDBMS support some way of commenting on stored objects. For instance, Oracle has this syntax:

{{COMMENT ON <object> IS 'some comment'}}

This is very useful when navigating an unknown schema, for instance to explain the meaning of a column with some encoded values, etc. Also, there is tool support when these comments are exposed through the dictionary views and/or through JDBC's DatabaseMetaData

I personally prefer Oracle's syntax over e.g. MySQL's (inline comments in CREATE TABLE) or SQL Server's (some system function).

Ideally, all objects can receive comments, including:
 * Tables (and views, etc.)
 * Columns
 * Routines
 * Schemas
 * Indexes
 * etc.

But I think the most important ones are tables and columns



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)