Laravel Eloquent 在子查询中有两个“WHERE NOT IN”

Question

我有这个查询，我无法在 laravel eloquent ORM 中编写查询。

感谢有人可以提供帮助。

这是 SQL 表达式：

SELECT DISTINCT cust, cust_no FROM delivery_sap 
WHERE cust NOT IN ( SELECT cust_name FROM customer) 
AND cust_no NOT IN ( SELECT cust_code FROM customer)

Answer 1

您可以使用如下所示的方式来代替执行 3 个不同的查询，

DB::table('delivery_sap')
->whereNotIn('cust', function ($query) {
        $query->select('cust_name')->from('customer');
    })
->whereNotIn('cust_no', function ($query) {
        $query->select('cust_code')->from('customer');
    })
->select('cust', 'cust_no')
->distinct('cust')
->get();

此代码将给出与问题中提出的完全相同的查询， 要检查查询，请使用以下代码

DB::table('delivery_sap')
->whereNotIn('cust', function ($query) {
        $query->select('cust_name')->from('customer');
    })
->whereNotIn('cust_no', function ($query) {
        $query->select('cust_code')->from('customer');
    })
->select('cust', 'cust_no')
->distinct('cust')
->toSql();

输出将是，

select distinct `cust`, `cust_no` from `delivery_sap` 
where `cust` not in (select `cust_name` from `customer`) 
and `cust_no` not in (select `cust_code` from `customer`)

Answer 2

您可以使用exists 或left 连接以获得更好的性能，而不是像现有解决方案那样在同一张表上进行子查询，不需要这两个额外的子查询

SELECT DISTINCT cust, cust_no 
FROM delivery_sap d
WHERE EXISTS (
    SELECT 1
    FROM delivery_sap
    WHERE cust_name = d.cust OR cust_code = d.cust
)

或

SELECT DISTINCT d.cust, d.cust_no 
FROM delivery_sap d
LEFT JOIN delivery_sap d1 ON d.cust = d1.cust_name OR d.cust = d1.cust_code 
WHERE d1.cust IS NULL

DB::table('delivery_sap as d')
    ->leftJoin('delivery_sap as d1', function ($join) {
        $join->on('d.cust','=','d1.cust_name')
             ->orWhere('d.cust', '=', 'd1.cust_code');
   })
    ->whereNull('d1.cust')
    ->select('cust', 'cust_no')
    ->distinct()
    ->get();

Answer 3

我将 pluck('cust') 下面的代码更正为 pluck('cust_name') 和 pluck('cust_no') 到 pluck('cust_code') 就可以了

DB::table('delivery_sap')
    ->whereNotIn('cust', DB::table('customer')->pluck('cust_name'))
    ->whereNotIn('cust_no', DB::table('customer')->pluck('cust_code'))
    ->select('cust', 'cust_no')
    ->groupBy('cust', 'cust_no')
    ->get();

Answer 4

试试这样的：

DB::table('delivery_sap')
    ->whereNotIn('cust', DB::table('customer')->pluck('cust'))
    ->whereNotIn('cust_no', DB::table('customer')->pluck('cust_no'))
    ->select('cust', 'cust_no')
    ->groupBy('cust', 'cust_no')
    ->get();