Jooq-带时间的日期列

Question

In my oracle database, in a table, I have a Date column. I fetch it using jooq, its a simple select query. The jooq fetches the column value, but without time. Have I missed any configurations?

Answer 1

By default, jOOQ maps Oracle's DATE column to java.sql.Date and TIMESTAMP to java.sql.Timestamp .

If you want to use Oracle's historic DATE semantics (date-time with seconds precision), then you can have jOOQ generate java.sql.Timestamp columns also for DATE columns using the <dateAsTimestamp/> code generation flag:

<!-- Generate java.sql.Timestamp fields for DATE columns. This is
     particularly useful for Oracle databases.
     Defaults to false -->
<dateAsTimestamp>false</dateAsTimestamp>

Details here: http://www.jooq.org/doc/latest/manual/code-generation/codegen-advanced/

This answer was also given on the jOOQ User Group

Answer 2

All the answers I could find for this issue on the web were more or less related to code generation, but I was working on a framework project and didn't want to couple my code to any specific databases.

The problem I had was, JOOQ cut off the time part from the data of DATE column when calling Record.getValue() methods.

According to JOOQ's doc , I worked it around by getting the value of DATE column from underlying ResultSet instead of using Record.getValue() .

Sample code:

ResultQuery<Record> query;
Cursor<Record> cursor = query.fetchLazy(fetchSize);
cursor.fetchOne(new RecordMapper<Record, Map<String, Object>>() {
    @Override
    public Map<String, Object> map(final Record record) {
        for (Field<?> field : record.fields()) {
            record.getValue(field, converter);
            if ("date".equals(field.getDataType().getTypeName())) {
                resultSet resultSet = cursor.resultSet();
                try {
                    Timestamp ts = resultSet.getTimestamp(field.getName());
                } catch (SQLException e) {
                    // ......
                }
            }
        }
    }
);