What is SQL passthrough?

什么是SQL passthrough ？

Configuration parameters for SQL passthrough.

SQL passthrough配置参数。

Hypervisor support for device passthrough.

设备透传的管理程序支持。

Example: Changing SQL passthrough mode dynamically.

示例：动态修改SQL passthrough模式。

Set the read-level passthrough mode to FORCE for the session.

将会话的read - level passthrough模式设置为FORCE。

Add the following lines under the SQL passthrough section.

在SQL passthrough下添加以下代码行。

Key parameters and considerations for setting up SQL passthrough.

设置SQL passthrough的关键参数和注意事项。

Set the read-level passthrough mode to FORCE for the next transaction.

将下一个事务的read - level passthrough模式设置为FORCE。

To set the passthrough for a single transaction, use the following commands.

要为一个事务设置passthrough，使用以下命令。

To set the passthrough for a single session, use the following commands.

要为一个会话建立passthrough，使用以下命令。

You can configure SQL passthrough for one of the following three behaviors

您可以针对以下 3 个行为之一配置 SQL passthrough

Keep these considerations in mind when you're preparing to use SQL passthrough.

准备使用SQL passthrough时，记住这些注意事项。

Neither endpoint is under your control: This is a case I call passthrough data.

端点都不在控制之中：这种情况称为传递数据。

For performance, near-native performance can be achieved using device passthrough.

对于性能而言，使用设备透传可以获得近乎本机的性能。

All the passthrough-related parameters are in the [passthrough] section of the solid.ini file.

所有这些passthrough相关的参数都在solid . ini文件的[passthrough]部分。

The reader should be able to configure SQL passthrough successfully after going through this article.

看完这篇文章之后，读者应该可以成功配置SQL passthrough了。

This parameter will force the passthrough module to use 32-bit ODBC handles for the back-end ODBC driver.

该参数强制passthrough模块为后端odbc驱动程序使用32位OD BC处理程序。

So it is possible for a calcium tablet to passthrough the digestive tract without being completely absorbed.

因此钙片可能经过消化道而没有完全吸收掉。

Result: the data from the back-end testtab table is shown because the passthrough Read level is set to FORCE.

结果：后端testtab表中的数据显示，因为将passthrough Read级别设置为FORCE。

You'll find support for device passthrough (using VT-d or IOMMU) in Xen and KVM as well as other hypervisors.

您将在 Xen 和 KVM 以及其他管理程序中发现设备透传支持（使用 VT-d 或 IOMMU）。

Before we jump into passthrough, let's explore how device emulation works today in two hypervisor architectures.

在探索透传技术之前，让我们先讨论一下如今设备模拟在两个管理程序架构中是如何工作的。

I'll discuss the various parameters necessary to configure SQL passthrough and provide an example configuration.

我将介绍配置SQL passthrough所需的各种参数，并提供一个配置示例。

The sole reason for having a Passthrough node is to have a place to put a breakpoint for use during interactive testing.

采用Passthrough节点的唯一原因是为了提供交互测试期间放置断点的位置。

Note: the passthrough mode can be changed at runtime with the SET passthrough and SET TRANSACTION passthrough statements.

注意：这个passthrough模式在运行时可使用SET passthrough和SET TRANSACTION passthrough语句予以更改。

The summer wind warm warmly has blown, passed through the hair to passthrough the ear, you and my summer wind gently was saying.

夏天的风正暖暖吹过，穿过头发穿过耳朵，你和我的夏天风轻轻说着。

Result: The query now shows data from the front end since the the Read passthrough mode was set to FORCE for a single transaction only.

结果：现在，查询显示前端数据，因为仅为一个事务将 Read passthrough 模式设置为 FORCE。

In addition to issuing a straight passthrough to its ITracer, the base class also issues rollup-level tracing at the database instance level.

该基类除了向它的ITracer发出一个直接传递(passthrough)外，还在数据库实例级发出了rollup级别的跟踪。

In most cases, the guest operating system (domain 0) must be compiled to support passthrough, which is available as a kernel build-time option.

在多数情况下，客户操作系统(域为0)必须被编译为支持透传，这通常作为一个内核构建时选项提供。

Using the latest virtualization-enhanced processor architectures, a number of hypervisors and virtualization solutions support device passthrough.

使用最新的支持虚拟化的处理器架构，有多个管理程序和虚拟化解决方案支持设备透传。

SQL passthrough is a feature in solidDB that allows the application to access data in both the front end and back end databases using a single connection.

SQL passthrough 是 solidDB 中的一个特性，支持应用程序使用一个连接在前端和后端数据库访问数据。