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以下关于sql查询语句执行顺序描述正确的是:()

[单选题]
以下关于sql查询语句执行顺序描述正确的是:()
  • select->from->where->group by→having→order by
  • from->where->select->group by→having→order by
  • from->where->group by→having→select→order by
  • select->from->group by→having→where→order by

(7) SELECT

(8) DISTINCT <select_list>

(1) FROM <left_table>

(3) <join_type> JOIN <right_table>

(2) ON <join_condition>

(4) WHERE <where_condition>

(5) GROUP BY <group_by_list>

(6) HAVING <having_condition>

(9) ORDER BY <order_by_condition>

(10) LIMIT <limit_number>

标号为执行顺序
发表于 2020-07-08 18:38:43 回复(1)
select语句关键字的定义顺序并不代表这是执行顺序,执行顺序为:from -- on  -- where -- group by -- having -- select -- distinct -- order by -- limit
发表于 2020-09-09 18:52:19 回复(1)
选A吧?
发表于 2020-06-30 14:54:29 回复(2)
答案错了吧,不是A?
发表于 2020-06-23 05:00:55 回复(0)
不选A?
发表于 2020-06-21 16:44:37 回复(0)