Allocating an environment handle is usually the first step in an ODBC application.

分配一个环境句柄通常是ODBC应用程序中的第一步。

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One environment handle must be present to allocate other types of handles in an application.

为了在应用程序中分配其他类型的句柄，必须提供一个环境句柄。

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One environment handle must be present to allocate other types of handles in an application.

为了在应用程序中分配其他类型的句柄，必须提供一个环境句柄。

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