mysql練習

今天重新下載了mysql，對着菜鳥教程裏面的步驟操做了一次。mysql 1.SELECTsql SELECT * FROM table_name; 2. SELECT DISTINCT學習 SELECT DISTINCT column_name,column_name FROM table_name; 3. WHERE3d WHERE子句用於提取那些知足指定條件的記錄code SELECT col

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