update更新两个字段时的sql语句: update tj_record set is_recycle_reprint_guide='1' , recycle__guide_date=now() where id = #{record_id} 科室假设我将字段的"."写成了and也不报错.可是更新不了. 如图: 切记,更新多个字段时是以逗号分隔.
例如 info表和relation表有关联,现在要在一个sql语句中同时级联更新两张表的数据 update security_code_info info LEFT JOIN security_code_relation re ON re.security_code = info.security_code set info.code_stock_state , info.code_state , info.code_qa_state , info.code_act_date = '2018-0
ACCESS 例子: insert into products (ProNumber,CASNumber,Cnname,Price,Enname,Baozhuang,Pinpai) select ProNumber,CASNumber,Cnname,Price,Enname,Baozhuang,Pinpai from product22 1.用一句sql从一个表里面取出数据导入另外一个表里面.这个对不同程序之间的数据转换很有用处,而且速度快,数据完整: insert into table1 (c
--临时表 create table tmp_cup ( a varchar(20), b varchar(50), c varchar(20) ) select * from t_customer --//更新简称字列 update t_customer set SHORTNAME=(select shortname from tmp_cup where a=custid) 不过如此的话, 如果子查询的某个查询返回多条数据的话就有可能报错:消息 512,级别 16,状态 1,第 1 行 子查询
本文转载至 http://www.bubuko.com/infodetail-1110714.html http://www.jianshu.com/p/631bd7f12a38 1.网络请求报错.升级Xcode 7.0发现网络访问失败.输出错误信息 The resource could not be loaded because the App Transport Security policy requires the use of a secure connection. 原因:iOS9引
在ModelForm需要知道: from app03 import models from django.forms import ModelForm class UserForm(ModelForm): class Meta: model = models.UserInfo fields = "__all__" 它的内部找到类之后,如果 类里的字段是FK,就会自动生成ModelChoiceField 如果是M2M ,就会自动生成ModelMutilChoiceField
示例sql: <update id="receipt" parameterType="com.pisen.cloud.luna.ms.security.code.base.mapper.beans.ReceiptBean"> update security_code_info info LEFT JOIN security_code_relation re ON re.security_code = info.security_code set info