联合国数据库操作介绍(3)

联合国关于国际贸易商品数据库操作的详细介绍

UNSD - OECD Joint System

Web Browser Client - UN Comtrade Version User Manual

Page 3

Notes: 1. The Query Processor name, Comtrade Explorer, appears at the top left of the form. The functions

described in section 2.2 are in fact links to a small number of common query processors :

• Shortcut Query

• Comtrade Explorer

• Basic Query

• Express Selection

These four processors can be directly accessed from the Data Query & Selection links and each of them has its own section in this document. Refer to the Table of Contents .

2. An empty filter field means that no filtering takes place: the whole data set is selected. This is true all

over this document.

3. The Classification field defines the international codes that represent commodity descriptions. This point

is discussed later.

4. The Quick Filter combo makes it possible to filter the selection by selecting an extra criterion that

relates to partner country, year or commodity:

INFO³/OECD Ref: Comtrade Manual - Data Query & Extraction.doc

Figure 5: Extra selection by commodity (first three letters are ‘pet’)

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