的Sql - 由多個部分組成的標識符不能綁定

Question

select distinct 
    page0.MatterType, 
    page0.Name, 
    page0.MatterNo, 
    page0.security, 
    page0.serial,  
    page6.TribCaseNo, 
    contact0.Name as Cname 
from 
    page0, page6, page14 
left join 
    contact0 on page0.PrimaryContact = contact0.linkserial 
where 
    page0.serial = page6.CaseSerial 
AND page0.serial = page14.CaseSerial 
AND (page14.staffmember = '100001^24' and page14.status != 'Inactive') 
AND page0.status != 'Closed' 

我不斷收到這

由多個部分組成的標識符page0.PrimaryContact無法綁定錯誤。

我檢查過的語法和拼寫都似乎是正確的。

謝謝！

Answer 1

可以在FROM讓您的查詢工作，通過改變表的順序：

select distinct 
page0.MatterType, 
page0.Name, 
page0.MatterNo, 
page0.security, 
page0.serial,   
page6.TribCaseNo, 
contact0.Name as Cname 
from 
page6, page14, page0 --NOTE: page0 is now closest to join!!! 
left join 
contact0 on page0.PrimaryContact = contact0.linkserial 
where 
page0.serial = page6.CaseSerial 
AND page0.serial = page14.CaseSerial 
AND (page14.staffmember = '100001^24' and page14.status != 'Inactive') 
AND page0.status != 'Closed' 

更新。
一般而言，我強烈建議您不要混合使用新舊語法（因爲它在這裏完成），p.campbell的解決方案是編寫查詢的正確方法。

Answer 2

您需要進行明確的連接。目前您正在使用舊的連接語法。考慮重構：

select P0.*, P6.TribCaseNo, C0.Name as Cname 
FROM  page0 AS P0 
INNER JOIN page6 AS P6 on P0.serial = P6.CaseSerial 
INNER JOIN page14 AS P14 ON P0.serial = P14.CaseSerial 
LEFT JOIN contact0 AS C0 on P0.PrimaryContact = C0.linkserial 

WHERE (P14.staffmember = '100001^24' AND P14.status != 'Inactive') 
AND P0.status != 'Closed'