摘要： 1.SELECT KEYWORD ①TOP ②LIKE ③IN ④BETWEEN...AND ⑤ALIAS2.SELECT JOIN ①JOIN |INNER JOIN ②LEFT JOIN ③RIGHT JOIN ④FULL JOIN3.SELECT INTO　＆　UNION1.SELECT KEYWORD ①TOP　語法：　SELECT TOP number|percent column_name　FROM table_name number|percent：返回记录的个数或百分比，|：二选一。column_name:列名，全部列用*、多个列用逗号隔开; ・从... 阅读全文