Mysql “in/ALL/ANY子查询”中的未知列

为什么我会犯这个错误？错误显示在OR子句中，但我正在SELECT语句中选择gl_ID

; DECLARE v_firstDate DATETIME
SET @p_ID = 368
SELECT SUBDATE(NOW(), 1) INTO v_firstDate;
SELECT t_ID, t_firstName, t_lastName
FROM t_table
WHERE
((@p_ID IN (
        SELECT tt_ID
        FROM tt_tableTwo
        INNER JOIN st_stats ON (st_ID = tt_ID)
        INNER JOIN da_data ON (da_ID = st_ID AND da_name IN ("allCompanies", "allglobals"))
    )
))
OR
(
    (gl_ID IN ( //problem is here
        SELECT gl_ID
        FROM gl_globals
        INNER JOIN tr_transport ON (tr_id = gl_caseID AND tr_idOther = @p_ID)
        INNER JOIN co_countries ON (co_ID = gl_ID AND co_ID = @p_ID)
        )
    )
)

错误消息：

“in/ALL/ANY子查询”中的未知列“gl\u ID”

我应该使用AS还是HAVING？

gl\u ID在or子句中不可访问，因为它在t\u表中不存在。第一个FROM子句下的内部联接解决了这个问题

; DECLARE v_firstDate DATETIME
SET @p_ID = 368
SELECT SUBDATE(NOW(), 1) INTO v_firstDate;
SELECT t_ID, t_firstName, t_lastName
FROM t_table
INNER JOIN gl_globals ON (t_ID = gl_ID) // fix
WHERE
((@p_ID IN (
        SELECT tt_ID
        FROM tt_tableTwo
        INNER JOIN st_stats ON (st_ID = tt_ID)
        INNER JOIN da_data ON (da_ID = st_ID AND da_name IN ("allCompanies", "allglobals"))
    )
))
OR
(
    (gl_ID IN (
        SELECT gl_ID
        FROM gl_globals
        INNER JOIN tr_transport ON (tr_id = gl_caseID AND tr_idOther = @p_ID)
        INNER JOIN co_countries ON (co_ID = gl_ID AND co_ID = @p_ID)
        )
    )
)

---

您的gl_ID是否存在于t_table中？@LoïcDiBenedetto否，它存在于gl_globalsTry中，在外部和内部查询中使用tablename.gl_ID格式，以便mysql准确地知道您引用的gl_ID字段。查询中的括号太多了。不过我不理解您的说法，如果将未知字段与子查询的结果进行比较，则t_表的作用域中不存在第一个gl_ID字段