DISTINCT 关键字。，，``sql，SELECT DISTINCT column1, column2 FROM table_name;，`，，这样会返回 column1 和 column2` 组合的唯一记录。DISTINCT 关键字。，，``sql，SELECT DISTINCT column1, column2 FROM table_name;，`，，这样会返回 column1 和 column2` 组合的唯一记录。Powered By Z-BlogPHP 1.7.3
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