我使用gradle init创建了一个简单的java应用程序。我正在使用Intellij 2021.2.2。 当我构建这个项目时,我得到了关注。 ? * This file was generated by the Gradle 'init' task.
*
* This generated file contains a sample Java application project to get you started.
* For more details take a look at the 'Building Java & JVM p
我的代码非常简单:
['found' if 'some_string' in word else word for word in wordlist]
但它会返回
TypeError
Traceback (most recent call last)
<ipython-input-108-990cad51d935> in <module>()
----> 1 [word for word in wordlist if 'some_st
我必须重定向到CompanyController->create()
class CompanyController extends \BaseController {
...
public function index(){
echo var_dump(Session::get('err'));
}
...
public function create()
{
if($validator->passes()){
$this->setError("no errors");
}else{
$
我正在做货币表的工作。在过去的六个月里,我每个星期五都要去找,。我的查询每天在两个日期之间进行选择。这里是我的疑问
SELECT valid_from,
currency_code,
currency_rate
FROM currency_rate
WHERE valid_from > add_months(sysdate,-6) --Selects every day
AND currency_code IN ('USD', 'EUR','CAD','GBP','JPY')
我需要删除这个查询中的结果:
SELECT a.cad_id
FROM `Cad` a
WHERE NOT EXISTS
(
SELECT b.cad_id
FROM `rel` b
WHERE a.cad_id = b.rel
)
我试着:
DELETE FROM `Cad` WHERE cad_id = (
SELECT a.cad_id
FROM `Cad` a
WHERE NOT EXISTS
(
SELECT b.cad_id
FROM `rel` b
WHERE a.cad_id = b.rel
)
)
1093 -不能指定目标表'Cad‘以便在FROM子句中更新
我该怎么
有人能解释一下如何将列的值从一个select传递到另一个select吗?在我的例子中,如何将值参数传递给名为“cad_products.id_product”的字段? 遵循代码。 SELECT
json_agg ( T ) AS retorno
FROM
(
SELECT
cad_products.*,
json_agg ( b ) AS properties
FROM
cad_products,
(
SELECT
cad_properties.id_property,
cad_properties.description