mysql左加入多列

我正在为我的工作构建数据库，并且无法确定如何构建此查询。mysql左加入多列

有关我的问题的表是：

工作

Surgical_Planning - 有工作作为外键，存在一些工作，不为别人

Medical_Model - 有工作作为外键，与作业1对1的关系

这是一个工作查询，我没有关于手术计划的任何信息

SELECT 
    job, 
    physician_idphysician as Physician, 
    patient_idpatient as Patient, 
    status, 
    DATE_FORMAT(scan_date, '%M %e, %Y, %l:%i%p') as Scan_Date, 
    DATE_FORMAT(timestamp, '%M %e, %Y, %l:%i%p') as Recieved, 
    DATE_FORMAT(date_required, '%M %e, %Y, %l:%i%p') as Date_Required 
    FROM 
    job, patient_has_physician as phys, Scan, Medical_Model as med 
    WHERE 
    Scan.job_job = job AND phys.job_job = job 
    AND med.job_job = job AND job.type = 'medical

我想我想做一个左连接，这样它将按顺序显示每个作业，包含上面查询中的所有信息，但是当有作业的Surgical_Planning时＃我希望有一列也是如此。这是我尝试不工作

SELECT 
    job, 
    physician_idphysician as Physician, 
    patient_idpatient as Patient, 
    status, 
    DATE_FORMAT(scan_date, '%M %e, %Y, %l:%i%p') as Scan_Date, 
    DATE_FORMAT(timestamp, '%M %e, %Y, %l:%i%p') as Recieved, 
    DATE_FORMAT(date_required, '%M %e, %Y, %l:%i%p') as Date_Required 
    FROM 
    job, patient_has_physician as phys, Scan, Medical_Model as med 

    LEFT JOIN Surgical_Planning ON job.job = Surgical_Planning.job_job 
    AND Scan.job_job = job AND phys.job_job = job 
    AND med.job_job = job AND job.type = 'medical'

我能得到这个基本LEFT JOIN工作，我想要的方式，但如果我想添加更多的列像上面这是行不通的。

SELECT job, planning_id 
    FROM job 
    LEFT JOIN Surgical_Planning ON job = Surgical_Planning.job_job

可以使用子查询吗？我可以弄清楚这些更基本的查询，但真正遇到这些更复杂的连接和子查询问题。任何建议表示赞赏。

编辑---工作表模式

- 表mmrl。 job

DROP TABLE IF EXISTS mmrl。 job;

CREATE TABLE IF NOT EXISTS mmrl。job（

job INT（11）NOT NULL AUTO_INCREMENT，

type VARCHAR（45）NULL，

status VARCHAR（45）NULL DEFAULT NULL，

timestamp TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP，

PRIMARY KEY（job））

ENGINE = InnoDB

DEFAULT CHARACTER SET = latin1;

来源

2012-03-02 user1245706

变化

LEFT JOIN Surgical_Planning ON job.job = Surgical_Planning.job_job 
AND Scan.job_job = job AND phys.job_job = job 
AND med.job_job = job AND job.type = 'medical'

到

LEFT JOIN Surgical_Planning ON job.job = Surgical_Planning.job_job 
WHERE Scan.job_job = job AND phys.job_job = job 
AND med.job_job = job AND job.type = 'medical'

编辑：

左侧发生一起对表实际LEFT JOIN语法的左侧。将作业移至列表的末尾并重试。

FROM patient_has_physician as phys, Scan, Medical_Model as med, job

来源

2012-03-02 18:24:00 Julien

mysql左加入多列

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