Join 非相等配置单元查询的变通方法

我试图在配置单元上重写跟踪查询

select 
    TFCT_CHARGE.SUBS_KEY, 
    TFCT_CHARGE.PRODUCT_KEY, 
    TFCT_CHARGE.CHARGE_NVAL, 
    TFCT_CHARGE.B_SUBS_KEY, 
    TFCT_CHARGE.DELETE_DT, 
    HFCT_SUBS_SEGMENT.SEGMENT_KEY, 
    TFCT_CHARGE.EVENT_DT, 
    TFCT_CHARGE.DWH_SRC_TABLE_KEY
  from
TFCT_CHARGE LEFT OUTER JOIN HFCT_SUBS_SEGMENT
ON (
TFCT_CHARGE.B_SUBS_KEY = HFCT_SUBS_SEGMENT.SUBS_KEY and
TFCT_CHARGE.EVENT_DT >= HFCT_SUBS_SEGMENT.EFF_DT    and
TFCT_CHARGE.EVENT_DT < HFCT_SUBS_SEGMENT.EXP_DT     and
HFCT_SUBS_SEGMENT.SEGMENT_TYPE_KEY = 1)

选择
TFCT_CHARGE.SUBS_键，
TFCT\费用。产品\密钥，
收费，
TFCT_CHARGE.B_SUBS_键，
TFCT\u CHARGE.DELETE\u DT，
HFCT_接头_段。段_键，
TFCT\u CHARGE.EVENT\u DT，
TFCT\u CHARGE.DWH\u SRC\u表\u键
从…起
TFCT\U充电左外连接HFCT\U接头\U段
在(
TFCT_CHARGE.B_SUBS_KEY=HFCT_SUBS_SEGMENT.SUBS_KEY和
TFCT\u CHARGE.EVENT\u DT>=HFCT\u SUBS\u SEGMENT.EFF\u DT和
TFCT\u CHARGE.EVENT\u DT

但也有不平等的质疑。 谁能告诉我一些解决办法吗？ Tnx

这很容易

选择
TFCT_CHARGE.SUBS_键，
TFCT\费用。产品\密钥，
收费，
TFCT_CHARGE.B_SUBS_键，
TFCT\u CHARGE.DELETE\u DT，
HFCT_接头_段。段_键，
TFCT\u CHARGE.EVENT\u DT，
TFCT\u CHARGE.DWH\u SRC\u表\u键
从…起
TFCT\U充电内部连接HFCT\U接头\U段
在(
TFCT\U CHARGE.B\U SUB\U KEY=HFCT\U SUB\U段.SUB\U KEY
HFCT_接头_段。段_类型_键=1）
哪里
TFCT\u CHARGE.EVENT\u DT>=HFCT\u SUBS\u SEGMENT.EFF\u DT和
TFCT\u CHARGE.EVENT\u DT

要模拟非等左外部联接：

创建具有添加的序列行号的左表副本

进行内部联接：

通过序列左连接：

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有关代码，请参见我的答案：

您的答案不考虑左外连接。您将缺少不在内部联接中的行

select 
    TFCT_CHARGE.SUBS_KEY, 
    TFCT_CHARGE.PRODUCT_KEY, 
    TFCT_CHARGE.CHARGE_NVAL, 
    TFCT_CHARGE.B_SUBS_KEY, 
    TFCT_CHARGE.DELETE_DT, 
    HFCT_SUBS_SEGMENT.SEGMENT_KEY, 
    TFCT_CHARGE.EVENT_DT, 
    TFCT_CHARGE.DWH_SRC_TABLE_KEY
  from
TFCT_CHARGE INNER JOIN HFCT_SUBS_SEGMENT
ON (
TFCT_CHARGE.B_SUBS_KEY = HFCT_SUBS_SEGMENT.SUBS_KEY
HFCT_SUBS_SEGMENT.SEGMENT_TYPE_KEY = 1)
where
TFCT_CHARGE.EVENT_DT >= HFCT_SUBS_SEGMENT.EFF_DT    and
TFCT_CHARGE.EVENT_DT < HFCT_SUBS_SEGMENT.EXP_DT     and