主机参考:VPS测评参考推荐/专注分享VPS服务器优惠信息!若您是商家可以在本站进行投稿,查看详情!此外我们还提供软文收录、PayPal代付、广告赞助等服务,查看详情! |
我们发布的部分优惠活动文章可能存在时效性,购买时建议在本站搜索商家名称可查看相关文章充分了解该商家!若非中文页面可使用Edge浏览器同步翻译!PayPal代付/收录合作 |
问题描述:
MVC5项目,利用执行sql的方式获取数据,但是在利用预编译执行的时候报错了,字段XXXwhich was not supplied.
其实就是这个参数传了个null导致的。在传参数之前做个判断,如果为null就赋值为空串即可。
(=
String sql = "select a.Id,a.UserName,a.TrueName,ISNULL(b.OTM, '0') as Flag from SysUser a left join FIX_MatchingModel b on cast(a.Id as varchar) = b.OTM and b.Id = @matchingId Where a.DepId = @DepId order by b.OTM desc";SqlParameter[] sqlParameters = { new SqlParameter { ParameterName = "matchingId", Value = matchingId }, new SqlParameter { ParameterName = "DepId", Value = depId } };DbContexts DbContext = new DbContexts();return DbContext.Database.SqlQuery<UserViewgt;(sql, sqlParameters).ToList();
Problem Description:
Mvc5 project, uses the method of executing SQL to obtain data, but reports an error when using precompiled execution, field xxxwhich was not supplied
In fact, this parameter passed a null. Make a judgment before passing the parameter. If it is null, it can be assigned as an empty string.
(=
String sql = "select a.Id,a.UserName,a.TrueName,ISNULL(b.OTM, '0') as Flag from SysUser a left join FIX_MatchingModel b on cast(a.Id as varchar) = b.OTM and b.Id = @matchingId Where a.DepId = @DepId order by b.OTM desc";SqlParameter[] sqlParameters = { new SqlParameter { ParameterName = "matchingId", Value = matchingId }, new SqlParameter { ParameterName = "DepId", Value = depId } };DbContexts DbContext = new DbContexts();return DbContext.Database.SqlQuery<UserViewgt;(sql, sqlParameters).ToList();
--------------------------------------------------------------
主机参考,收集国内外VPS,VPS测评,主机测评,云服务器,虚拟主机,独立服务器,国内外服务器,高性价比建站主机相关优惠信息@zhujicankao.com
详细介绍和测评国外VPS主机,云服务器,国外服务器,国外主机的相关优惠信息,商家背景,网络带宽等等,也是目前国内最好的主机云服务器VPS参考测评资讯优惠信息分享平台
这几篇文章你可能也喜欢:
- Spin Server:#Goichi# $89/月-双E5-2650Lv3,64G内存,1.6TB SSD,10Gbps带宽,硅谷机房
- SpinServers: Phantom Beast Paru服务器,美国便宜的VPS只要25美元/月,4核/16G内存/40g SD/10T流量@1Gbps带宽。
- 1G的云服务器可以做什么?好不好
- WNT虫洞传输实现内网安全、高速、稳定传输
- 云服务器ecs怎么选购,有哪些技巧
本文由主机参考刊发,转载请注明:SQL Server 预编译执行SQLs https://zhujicankao.com/12217.html
评论前必须登录!
注册