加入两个表以获得特定格式的第三列

Question

嗨我在sqlserver中有Table1和Table2。我希望得到如表3中的结果，如下图所示。

Answer 1

这个查询终于给了我答案：

SELECT COALESECE(t1.Label, t2.label) AS label,
       t1.Value AS Table1_Value,
       t2.Value AS Table2_Value
FROM Table_1 t1
FULL OUTER JOIN Table_2 t2
    ON t1.Label = t2.Label

Answer 2

尝试以下查询

 SELECT COALESCE(T1.LABEL,T2.LABEL) AS LABEL,T1.VALUE,T2.VALUE
 FROM TAB1 T1 FULL OUTER JOIN TAB2 T2
 ON T1.LABEL=T2.LABEL

Answer 3

使用此查询：

SELECT t1.Label,
       t1.Value AS Table1_Value,
       t2.Value AS Table2_Value
FROM Table1 t1
FULL OUTER JOIN Table2 t2
    ON t1.Label = t2.Label