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Posted to derby-dev@db.apache.org by "Lukas Eder (Created) (JIRA)" <ji...@apache.org> on 2012/02/04 10:25:53 UTC
[jira] [Created] (DERBY-5602) Add support for a SQL REPEAT(string,
count) function
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: 10.8.2.2
Reporter: Lukas Eder
Priority: Minor
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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[jira] [Updated] (DERBY-5602) Add support for a SQL REPEAT(string,
count) function
Posted by "Mamta A. Satoor (JIRA)" <ji...@apache.org>.
[ 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: 10.8.2.2
> 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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