Question

我正在尝试将查询结果存储到变量中，以便可以在其他查询中使用它，但会出错

# views.py

def post(request):

    if request.method == 'POST':
        form = newListingForm(request.user, request.POST)
        if form.is_valid():
            listing = form.save(commit=False)
            listing.user = request.user
            listing.save()
    else:
        form = newListingForm(request.user)
    return render(request, 'post/post.html', {'form': form})

在编译器日志中获得以下错误：

Unsupported lookup 'user_id' for AutoField or join on the field not permitted.

Answer 1

在双引号之间插入variable_sku_id会使标识符名称区分大小写。

删除双引号，应该没问题（我将查询更改为使用ANSI-92语法-将所有内容放在FROM子句中是过时的Oracle语法，应该避免）：

create procedure store_validated_sku_id
(variable_sku_id VARCHAR2)
as 
BEGIN

SELECT vsku.SKU_ID INTO  store_validated_sku_id.variable_sku_id 
FROM vs_sku_discont_details_test discontd
JOIN vsx_dcs_sku vsku 
  ON  discontd.sku_id = vsku.JDA_SKU_ID 
JOIN auto_ship_view bcc
  ON bcc.sku_id = vsku.SKU_ID 
 WHERE vsku.web_eligible = 1 
 AND vsku.discontinued = 0 
 AND bcc.auto_ship_eligible is null;

END store_validated_sku_id;

Answer 2

是的，您的主要问题是包装变量（variable_sku_id 用引号引起来（无论是双精度还是单精度，都产生问题），你应该摆脱他们
，但还需要将其转换为out或in out类型，因为 in（默认）类型参数不能用作分配目标。

Answer 3

CREATE OR REPLACE PROCEDURE store_validated_sku_id( variable_sku_id OUT VARCHAR2 ) IS    
BEGIN    
  SELECT vsku.SKU_ID
    INTO variable_sku_id      
    FROM vs_sku_discont_details_test discontd      
    JOIN vsx_dcs_sku vsku      
      ON discontd.sku_id = vsku.JDA_SKU_ID      
    JOIN auto_ship_view bcc      
      ON bcc.sku_id = vsku.SKU_ID      
   WHERE vsku.web_eligible = 1            
     AND vsku.discontinued = 0            
     AND bcc.auto_ship_eligible is null;    
END store_validated_sku_id;

PLS-00302：必须声明组件“ VARIABLE_SKU_ID”

3 个答案: