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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5602) Add support for a SQL REPEAT(string, count) function
Date Fri, 28 Sep 2012 03:35:07 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Mamta A. Satoor updated DERBY-5602:

    Labels: derby_triage10_10 function sql string  (was: function sql string)
> Add support for a SQL REPEAT(string, count) function
> ----------------------------------------------------
>                 Key: DERBY-5602
>                 URL: https://issues.apache.org/jira/browse/DERBY-5602
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions:
>            Reporter: Lukas Eder
>            Priority: Minor
>              Labels: derby_triage10_10, function, sql, string
> A similar function was discussed with Rick Hillegas in this ticket:
> https://issues.apache.org/jira/browse/DERBY-5597
> Apparently, JDBC mentions a REPLACE function in its appendix:
> > Compare the JDBC escape function (from Appendix D2 of the 4.1 JDBC spec):
> > "REPLACE(string1, string2, string3) Replaces all occurrences of string2 in string1
with string3"
> It also mentions a REPEAT function
> "REPEAT(string, count) A character string formed by repeating string count times"
> This REPEAT function would be a nice-to-have enhancement to simulate padding directly
in the database, where this may be needed. Most databases ship with some form of REPEAT:
> - RPAD(string, LENGTH(string) * count) in Oracle, Ingres
> - REPLICATE(string, count) in Sybase ASE, SQL Server
> - REPEAT(string, count) in DB2, H2, HSQLDB, MySQL, Postgres, Sybase SQL Anywhere

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