[ http://issues.apache.org/jira/browse/DERBY-1231?page=all ]
Bernt M. Johnsen updated DERBY-1231: ------------------------------------ Attachment: DERBY-1231-v2.diff New version. Ready for commit. > LIKE does not match empty strings when used with a prepared statement > --------------------------------------------------------------------- > > Key: DERBY-1231 > URL: http://issues.apache.org/jira/browse/DERBY-1231 > Project: Derby > Issue Type: Bug > Components: JDBC, SQL > Affects Versions: 10.1.2.1, 10.1.3.1, 10.3.0.0, 10.2.1.6 > Reporter: Dyre Tjeldvoll > Assigned To: Bernt M. Johnsen > Fix For: 10.2.2.0 > > Attachments: DERBY-1231-v2.diff, DERBY-1231.diff, vti.java > > > LIKE should give true for two 0-length strings. See SQL 2003 Ch. 8.5 > General Rules 3)c)i) > The query SELECT * FROM t WHERE v like '' > appears to give me all rows where v is an empty > string, as expected. > But a prepared statement > SELECT * FROM t WHERE v like ?, with setString(1, "") > always returns an empty result set. See attached repro for the full example. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira