![](/img/trans.png)
[英]Insert Query vs SqlBulkCopy - which one is best as performance wise for insert records from One `DataBase` to Another `DataBase`
[英]Which was is best to insert a row into a database?
很长一段时间我一直在做以下事情:
using(var db = new MainContext())
{
// Create license issue record
var n = new tblStoreLicenseIssue
{
Comment = comment,
EmailAddress = email,
Hash = mangled2,
LicensedTo = name,
Timestamp = unixTime,
ValidClaimID = validClaimID
};
db.tblStoreLicenseIssues.InsertOnSubmit(n);
db.SubmitChanges();
}
但我想知道这种方法是否具有任何优势:
var n = new tblStoreLicenseIssue
{
Comment = comment,
EmailAddress = email,
Hash = mangled2,
LicensedTo = name,
Timestamp = unixTime,
ValidClaimID = validClaimID
};
using(var db = new MainContext())
{
db.tblStoreLicenseIssues.InsertOnSubmit(n);
db.SubmitChanges();
}
哪种方法被认为是最佳实践,为什么?
我会选择后者 - 因为创建对象不使用DB上下文,它不必在using
构造中。
第二种方法提供的唯一优势是,在构造tblStoreLicenseIssue
失败的情况下,您将避免构造和处理MainContext
的实例。 除此之外,这两个片段是相同的。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.