小编hln*_*n98的帖子

第一次jooq用户在这里.我需要将带有嵌套select的常规SQL语句转换为jooq.不知道我是否走在正确的道路上？我感谢任何帮助.

//select * 
//from profile 
//where (profile_id, effective_date) in (
//                select profile_id, max(effective_date) as date 
//                from profile 
//                group by profile_id
//                )

这就是我所拥有但不确定是否正确:

Result<Record> profiles = dsl_
.select(PROFILE.fields())
.from(PROFILE)
.where(PROFILE.PROFILE_ID, PROFILE.EFFECTIVE_DATE) in (create
    .select(PROFILE.PROFILE_ID, max(PROFILE.EFFECTIVE_DATE) as date
    .from(PROFILE)
    .groupBy(PROFILE.PROFILE_ID)))
    .fetch();

你好我有一个方法来计算数据库中的值,我使用jooq然后迭代结果来进行求和,聚合一些字段.我的问题是我可以在jooq语句中执行所有操作,而不必遍历我的resultSet并手动添加它们吗？这是我到目前为止所做的:谢谢.

BigDecimal dealDiscountAmt = BigDecimal.ZERO;
BigDecimal standardAmtOneTimeTrue = BigDecimal.ZERO;
BigDecimal standardAmtOneTimeFalse = BigDecimal.ZERO;
BigDecimal oneTimeFalseX12 = BigDecimal.ZERO;

/** Dao for jooq access to db. */
@Resource(name = "dmDaoContext")
protected DSLContext dmDao_;


List<JDealMetricWorkflowCriteriaRecord> retValList = new ArrayList<JDealMetricWorkflowCriteriaRecord>();
JDealMetricWorkflowCriteriaRecord newDealRecord = new JDealMetricWorkflowCriteriaRecord();

List<JMetricServicePxvRecord> records = dmDao_.selectFrom(METRIC_SERVICE_PXV)
    .where(METRIC_SERVICE_PXV.DEAL_ID.eq(dealId), METRIC_SERVICE_PXV.PRODUCED_DATETIME.eq(whenProduced))
    .fetch();

for (JMetricServicePxvRecord record : records) {
  //sum all dealDiscounts
  dealDiscountAmt = dealDiscountAmt.add(record.getStandardTotalPxv().subtract(record.getProposedTotalPxv());

  if (record.getOneTime()) {
    //sum all dealDiscounts if oneTime is true
    standardAmtOneTimeTrue = standardAmtOneTimeTrue.add(record.getStandardTotalPxv().subtract(record.getProposedTotalPxv());
  } else {
    //sum all dealDiscounts if …