Question

我尝试使用以下代码运行Oracle数据查询：

SELECT
    S.FORM_NO,
    S.ARTICLEID_FK AS S_ARTICLEID_FK,
    S.BOX_SERIAL_NO,
    S.ACTUAL_WEIGHT,
    TO_CHAR(S.DATEADDED, 'DD-MON-YYYY HH24:MI:SS') AS DATEADDEDS,
    S.ADDEDBY,
    B.ARTICLEID_FK AS B_ARTICLEID_FK,
    B.DATE_CODE
FROM
    WA_LA_TBL_ARTICLES_SCAN S,
    WA_LA_TBL_ARTICLES_BOX_SN B
WHERE
    S.S_ARTICLEID_FK = B.B_ARTICLEID_FK

现在得到以下错误：

Warning: oci_execute(): ORA-00904: "S"."S_ARTICLEID_FK": invalid identifier in...

我怀疑可能来自这方：S.ARTICLEID_FK和B.ARTICLEID_FK

但我不知道如何解决查询。

Answer 1

SELECT
    S.FORM_NO,
    S.ARTICLEID_FK AS S_ARTICLEID_FK,
    S.BOX_SERIAL_NO,
    S.ACTUAL_WEIGHT,
    TO_CHAR(S.DATEADDED, 'DD-MON-YYYY HH24:MI:SS') AS DATEADDEDS,
    S.ADDEDBY,
    B.ARTICLEID_FK AS B_ARTICLEID_FK,
    B.DATE_CODE
FROM
    WA_LA_TBL_ARTICLES_SCAN S,
    WA_LA_TBL_ARTICLES_BOX_SN B
WHERE
    S.ARTICLEID_FK = B.ARTICLEID_FK

Answer 2

尝试：

WHERE S.ARTICLEID_FK = B.ARTICLEID_FK

您似乎正在尝试使用新字段S.S_ARTICLEID_FK = B.B_ARTICLEID_FK作为连接的ID，这就是问题......

Answer 3

学习使用正确的JOIN语法。然后，您无法在ON或WHERE中使用列别名：

SELECT . . .
FROM WA_LA_TBL_ARTICLES_SCAN S JOIN
     WA_LA_TBL_ARTICLES_BOX_SN B
     ON S.ARTICLEID_FK = B.ARTICLEID_FK;

Oracle在不同的表上查询具有相同id列名的数据

3 个答案: