如何使用php和mysql从外部表中搜索数据？

Question

这里是3 MySQL表格式：

project_status

psid p_id cdid sid short_list res_sent 
1  3  112 24 0   0 
2  3  113 25 0   1 
3  4  114 22 0   1 
4  4  115 23 1   0 
5  5  116 26 0   0 

contact_details：

cdid family_name given_name  department  title cid 
112 xx    xx    xx    xx  1 
113 xx    xx    xx    xx  2 
114 xx    xx    xx    xx  3 
115 xx    xx    xx    xx  4 
116 xx    xx    xx    xx  5 

公司：

cid company_name 
1  xx 
2  xx 
3  xx 
4  xx 
5  xx 

现在，我需要从基于p_id和sidproject_status表中搜索cdid显示family_name, given_name, department, title

所以我使用下面的查询，我得到3个结果

SELECT 
    cd.family_name, 
    cd.given_name, 
    cd.department, 
    cd.title, 
    cd.cid, 
    ps.*, company.company_name 
FROM 
    contact_details AS cd 
LEFT JOIN project_status AS ps ON cd.cdid = ps.cdid 
LEFT JOIN company ON company.cid = cd.cid 
WHERE 
    1 = 1 
AND ps.sid IN (25, 22) 
AND ps.p_id = '3' 
ORDER BY 
    company.company_name ASC 

NOW我想再次在上搜索结果信息（有3个结果）基于family_name or given_name or department搜索字串

对于我使用下面的查询：

SELECT 
    cd.family_name, 
    cd.given_name, 
    cd.department, 
    cd.title, 
    cd.cid, 
    ps.*, company.company_name 
FROM 
    contact_details AS cd 
LEFT JOIN project_status AS ps ON cd.cdid = ps.cdid 
LEFT JOIN company ON company.cid = cd.cid 
WHERE 
    1 = 1 
AND ps.sid IN (25, 22) 
AND company.company_name LIKE '%ab%' 
OR cd.family_name LIKE '%ab%' 
OR cd.given_name LIKE '%ab%' 
AND ps.p_id = '3' 
GROUP BY 
    cd.cdid 
ORDER BY 
    company.company_name ASC 

现在是不应该给我更多的3的结果，因为我有我的第一个查询3所示的结果。但不幸的是它向我显示contact_details table

Answer 1

尝试修改SQL的最后一部分：

SELECT 
cd.family_name, 
cd.given_name, 
cd.department, 
cd.title, 
cd.cid, 
ps.*, 
company.company_name 
FROM contact_details AS cd 
LEFT JOIN project_status AS ps ON cd.cdid = ps.cdid 
LEFT JOIN company ON company.cid = cd.cid 
WHERE ps.sid IN (25, 22) 
AND (company.company_name LIKE '%ab%' 
    OR cd.family_name LIKE '%ab%' 
    OR cd.given_name LIKE '%ab%') 
AND ps.p_id = '3' 
GROUP BY cd.cdid 
ORDER BY company.company_name ASC 

Answer 2

你OR子句expaning您的标准超过3个结果远远超出了你认为

我觉得这可能是你换货什么来指定，它有点猜测虽然

的

SELECT 
    cd.family_name, 
    cd.given_name, 
    cd.department, 
    cd.title, 
    cd.cid, 
    ps.*, company.company_name 
FROM 
    contact_details AS cd 
LEFT JOIN project_status AS ps ON cd.cdid = ps.cdid 
LEFT JOIN company ON company.cid = cd.cid 
WHERE ps.sid IN (25, 22) 
AND company.company_name LIKE '%ab%' 
AND (cd.family_name LIKE '%ab%' OR cd.given_name LIKE '%ab%') 
AND ps.p_id = '3' 
GROUP BY 
    cd.cdid 
ORDER BY 
    company.company_name ASC 

的1=1是完全没有必要的也是

Answer 3

SELECT cd.family_name, cd.given_name, cd.department, cd.title, cd.cid, ps.*, company.company_name 
    FROM contact_details AS cd 
    INNER JOIN project_status AS ps ON cd.cdid = ps.cdid 
    INNER JOIN company ON company.cid = cd.cid 
    WHERE ps.sid IN (25,22) AND ps.p_id = '3' 
    AND (company.company_name LIKE '%ab%' OR cd.family_name LIKE '%ab%' OR cd.given_name LIKE '%ab%') 

    ORDER BY company.company_name ASC