Outer join in which all rows from the table represented on the right will be included, even if they do not have matches in the related table.
完整的外部联结，将同时包括两边的资料表，即使该资料列在相关资料表中并没有相符项目。
Outer join in which all rows from the table represented on the right will be included, even if they do not have matches in the related table.
完整的外部联结，将同时包括两边的资料表，即使该资料列在相关资料表中并没有相符项目。
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