[jira] [Commented] (TRAFODION-3144) Correct Syntactic Descriptions of Character String Data Types and Add Examples (NCHAR) for *ALTER TABLE Statement* in *Trafodion SQL Reference Manual*

[ASF GitHub Bot (JIRA)]

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https://issues.apache.org/jira/browse/TRAFODION-3144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16545974#comment-16545974
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ASF GitHub Bot commented on TRAFODION-3144:
-------------------------------------------

Github user liuyu000 commented on a diff in the pull request:

    https://github.com/apache/trafodion/pull/1645#discussion_r202882272
  
    --- Diff: docs/sql_reference/src/asciidoc/_chapters/sql_statements.adoc ---
    @@ -390,25 +390,27 @@ alter-action is:
     
     column-definition is:
        column-name data-type
    -      ([DEFAULT default]
    -         [[constraint constraint-name] column-constraint])
    +      [[DEFAULT default]
    +         [[constraint constraint-name] column-constraint]]
     
     data-type is:
          char[acter] [(length)[characters]]
    --- End diff --
    
    Thanks for your review @DaveBirdsall 
    
    `length [characters]` is optional.
    If `length` is not specified, then default is 1 character.
    
    
![default](https://user-images.githubusercontent.com/20532956/42794351-da9d61f2-89b0-11e8-9fca-10f2e09e6511.png)
    



> Correct Syntactic Descriptions of Character String Data Types and Add 
> Examples (NCHAR) for *ALTER TABLE Statement* in *Trafodion SQL Reference 
> Manual*
> ------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: TRAFODION-3144
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-3144
>             Project: Apache Trafodion
>          Issue Type: Documentation
>            Reporter: Liu Yu
>            Assignee: Liu Yu
>            Priority: Major
>




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