不使用存储过程的表值参数

问题描述

我似乎只能在网上找到需要使用存储过程的表值参数示例.我记得过去在没有存储过程的情况下这样做过.这可能吗?

It seems all I can find online are examples of table-valued parameters that require using a stored procedure. I recall doing this in the past without the stored procedure. Is that possible?

此代码不断抛出有关未指定类型的错误.

This code keeps throwing an error about the type not being specified.

SqlCommand cmd = new SqlCommand(@"
        UPDATE t1
        SET t1.ScheduledStartUTC = t2.ScheduledStartUTC
        FROM ScheduleTickets AS t1
            INNER JOIN @SetScheduledStart AS t2 ON t1.ScheduleId = t2.ScheduleId AND t1.PatchSessionId  = t2.PatchSessionId
    ", c);
cmd.Parameters.Add("@SetScheduledStart", SqlDbType.Structured).Value = SetScheduleTicketsDateDT;
cmd.ExecuteNonQuery();

推荐答案

在这里你可以找到如何在没有存储过程的情况下使用它:将表值参数传递给参数化SQL语句

Here you can find how to use it without stored procedure: Passing a Table-Valued Parameter to a Parameterized SQL Statement

基本上，它要求您:

1. 事先在服务器上创建类型 dbo.tvpUpdateScheduledStart AS TABLE (ScheduleId int, PatchSessionId int).
2. 在 SqlParameter 的 TypeName 属性中指定此类型.

1. CREATE TYPE dbo.tvpUpdateScheduledStart AS TABLE (ScheduleId int, PatchSessionId int) on the server beforehand.
2. Specify this type in TypeName property of a SqlParameter.

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