SQL

In SQL you have to use the keyword TIMESTAMP for date comparisons. Otherwise, the date would be interpreted as a string. The date has to be surrounded by single quotes (TIMESTAMP 'datetime') and in the ISO standard format: YYYY-MM-DDThh:mm:ss.sTZD ( http://en.wikipedia.org/wiki/ISO_8601 and well explained in a W3C note http://www.w3.org/TR/NOTE-datetime).

You will see that it can be a date only (YYYY-MM-DD) but also a complete date and time with a timezone designator (TZD).

// make SQL query

QueryManager queryManager = workspace.getQueryManager();

// create query

StringBuffer sb = new StringBuffer();

sb.append("select * from nt:resource where ");

sb.append("( jcr:lastModified >= TIMESTAMP '");

sb.append("2006-06-04T15:34:15.917+02:00");

sb.append("' )");

sb.append(" and ");

sb.append("( jcr:lastModified <= TIMESTAMP '");

sb.append("2008-06-04T15:34:15.917+02:00");

sb.append("' )");

String sqlStatement = sb.toString();

Query query = queryManager.createQuery(sqlStatement, Query.SQL);

// execute query and fetch result

QueryResult result = query.execute();

XPath

Compared to the SQL format, you have to use the keyword xs:dateTime and surround the datetime by extra brackets: xs:dateTime('datetime'). The actual format of the datetime also conforms with the ISO date standard.

// make XPath query

QueryManager queryManager = workspace.getQueryManager();

// create query

StringBuffer sb = new StringBuffer();

sb.append("//element(*,nt:resource)");

sb.append("[");

sb.append("@jcr:lastModified >= xs:dateTime('2006-08-19T10:11:38.281+02:00')");

sb.append(" and ");

sb.append("@jcr:lastModified <= xs:dateTime('2008-06-04T15:34:15.917+02:00')");

sb.append("]");

String xpathStatement = sb.toString();

Query query = queryManager.createQuery(xpathStatement, Query.XPATH);

// execute query and fetch result

QueryResult result = query.execute();