SELECT * FROM( SELECT ROW_NUMBER() OVER (ORDER BY r.UpdateTime desc) tempRowNum,h.BizID,h.OrgID FROM dbo.ToPlanTargetValueHis h INNER JOIN dbo.ToPlanAdjustRecord r ON h.BizID=r.ID WHERE h.BizID<>'import' AND r.AdjustAmount<>-1 AND DATEDIFF(YEA

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一.SQL语句定义顺序 1 2 3 4 5 6 7 8 9 10 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by_list> HAVING <having_condition>

python 3 mysql sql逻辑查询语句执行顺序 一 .SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by_list> HAVING <havin

mysql第四篇--SQL逻辑查询语句执行顺序 一.SQL语句定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by_list> HAVING <having_condition&g

一. 简单查询简单的Transact-SQL查询只包括选择列表.FROM子句和WHERE子句.它们分别说明所查询列.查询的表或视图.以及搜索条件等. 例如,下面的语句查询testtable表中姓名为“张三”的nickname字段和email字段. 代码:SELECT `nickname`,`email`FROM `testtable`WHERE `name`='张三' (一) 选择列表选择列表(select_list)指出所查询列,它可以是一组列名列表.星号.表达式.变量(包括局部变量和全局变量

--select select * from student; --all 查询所有 select all sex from student; --distinct 过滤重复 select distinct sex from student; --count 统计 select count(*) from student; select count(sex) from student; select count(distinct sex) from student; --top 取前N条记录 s

一:基本的查询sql 1:基本常用查询 select * from student; --select select all sex from student; --all 查询所有 select distinct sex from student; --distinct 过滤重复 --count 统计 select count(*) from student; select count(sex) from student; select count(distinct sex) from stu

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常用SQL查询语句 - myLittleGarden - 博客园 http://www.cnblogs.com/sunada2005/p/3411873.html 一.简单查询语句 1. 查看表结构 SQL>DESC emp; 2. 查询所有列 SQL>SELECT * FROM emp; 3. 查询指定列 SQL>SELECT empmo, ename, mgr FROM emp; SQL>SELECT DISTINCT mgr FROM emp; 只显示结果不同的项 4. 查询

一.concat()函数 1.功能:将多个字符串连接成一个字符串. 2.语法:concat(str1, str2,...) 返回结果为连接参数产生的字符串,如果有任何一个参数为null,则返回值为null. 3.举例: 例1:select concat (id, name, score) as info from tt2; 同时该函数可以实现某个字段加前缀后缀: 添加前缀UPDATE `table` SET field_name = concat("前缀", field_name);添

一 SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by_list> HAVING <having_condition> ORDER BY <o

in in可以分为三类: 一. 形如select * from t1 where f1 in ( &apos:a &apos:, &apos:b &apos:),应该和以下两种比较效率 select * from t1 where f1= &apos:a &apos: or f1= &apos:b &apos: 或者 select * from t1 where f1 = &apos:a &apos: union all se

一 SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by_list> HAVING <having_condition> ORDER BY <o

http://www.cnblogs.com/linhaifeng/articles/7372774.html 一 SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by

阅读目录 一 SELECT语句关键字的定义顺序 二 SELECT语句关键字的执行顺序 三 准备表和数据 四 准备SQL逻辑查询测试语句 五 执行顺序分析 一 SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition>

本篇导航: SELECT语句关键字的定义顺序 SELECT语句关键字的执行顺序 准备表和数据 准备SQL逻辑查询测试语句 执行顺序分析 一.SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY

关键字的执行优先级(重点) fromwheregroup byhavingselectdistinctorder bylimit 先创建两个表 CREATE TABLE table1 ( customer_id VARCHAR(10) NOT NULL, city VARCHAR(10) NOT NULL, PRIMARY KEY(customer_id) )ENGINE=INNODB DEFAULT CHARSET=UTF8; CREATE TABLE table2 ( order_id IN

SQL迭代查询 PL/SQL with ORG_Tree(ObjectId,parentID) as ( select a.ObjectId,a.parentID from Ot_Organizationunit a where Name in ('江苏区域','浙江区域','苏州区域') Union ALL select b.ObjectId,b.parentID from Ot_Organizationunit b inner join ORG_Tree T on b.parentID=T.

SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition> GROUP BY <group_by_list> HAVING <having_condition> ORDER BY <ord

阅读目录 一 SELECT语句关键字的定义顺序 二 SELECT语句关键字的执行顺序 三 准备表和数据 四 准备SQL逻辑查询测试语句 五 执行顺序分析 一 SELECT语句关键字的定义顺序 SELECT DISTINCT <select_list> FROM <left_table> <join_type> JOIN <right_table> ON <join_condition> WHERE <where_condition>