sql-server - 如何在 NHibernate 中使用 READPAST 提示？

Question

有什么办法可以让 NHibernate 使用 the READPAST hint从 SQL Server 选择数据时？

Answer 1

选项#1简单方法:SQL查询

Session.CreateSQLQuery("select * from YourEntityTable with (readpast) where SomeColumn = :col")
.AddEntity(typeof(YourEntity))
.SetString("col", value)                            
.UniqueResult<YourEntity>();

选项 #2 需要更多工作:

如果您不使用 NHibernate.LockMode 之一，您可以将方言的 AppendLockHint() 重写为:

public override string AppendLockHint(LockMode lockMode, string tableName)
{
    if (lockMode == <lockModeYouWantToSacrificeForThis>)
    {
        return tableName + " with (readpast)";
    }
    return tableName;
}