Question

我有两个表，其中日期字段填充有每月数据。日期字段之一使用月初，一个使用月末。我正在使用具有两个字段的INNER JOIN，但无法获取日期格式：

SELECT * FROM crd_own.ml_corp_index_data_monthly  tb1
INNER JOIN pm_own.esg_credit_factors tb2 
ON tb1.TICKER = tb2.ISSUER_TICKER
AND to_date('tbl.DATADATE', 'yyyy/mm') =to_date('tb2.AS_OF_DATE', 'yyyy/mm')

Answer 1

使用Oracle，您可以trunc将两个日期都设为月份，然后进行比较。请不要那样，正如@xQbert所评论的那样，您不想将日期括在引号中，因为这会阻止Oracle正确解释日期。

SELECT * 
FROM 
    crd_own.ml_corp_index_data_monthly  tb1
    INNER JOIN pm_own.esg_credit_factors tb2 
        ON tb1.TICKER = tb2.ISSUER_TICKER
        AND trunc(tb1.DATADATE, 'month') = trunc(tb2.AS_OF_DATE, 'month')

Answer 2

谢谢大家。...这行得通：

module.exports = {
    extend: "apostrophe-pieces",
    name: "modal",
    label: "Modal",
    seo: false,
    addFields: [
      {
        name: "_image",
        type: "joinByOne",
        withType: "apostrophe-image",
        label: "Pick an image",
        required: true,
        idField: "_id",
        filters: {
          // Thought maybe not having a projection was an issue. didn't help
          projection: {
            attachment: 1
          }
        }
      }
    ]
  };

内部联接两个字段上的两个表-日期字段的月份和年份匹配oracle sql

2 个答案: