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SQL Server基础SQL脚本之创建架构、排序

from HumanResources.Employee --列的值升序排列 select EmployeeID from HumanResources.Employee order by EmployeeID...as 'Eid',Title as 'TName' from Emp select 'E'=EmployeeID,'T'=Title from Emp select EmployeeID 'EEE'...,Title 'TTT' from Emp select EmployeeID , 'EEE' ,Title ,'TTT' from Emp select EmployeeID , 'EEE'as...,isnull(EndDate,0) as EDate from EDH ---------- select EmployeeID,coalesce(EndDate,StartDate,...h order by EmployeeID asc

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MSSQL存储过程的功能和用法：解密数据库编程的神秘面纱

@EmployeeID = 1; 修改存储过程 ALTER PROCEDURE GetEmployeeDetails @EmployeeID int, @NewDetail varchar...(100) AS BEGIN UPDATE Employees SET Detail = @NewDetail WHERE EmployeeID = @EmployeeID; SELECT...* FROM Employees WHERE EmployeeID = @EmployeeID; END; 删除存储过程 DROP PROCEDURE GetEmployeeDetails; 存储过程的高级应用...UPDATE Employees SET Salary = Salary + @SalaryIncrement WHERE EmployeeID = @EmployeeID; END; 错误处理...UPDATE Employees SET Salary = @NewSalary WHERE EmployeeID = @EmployeeID; END TRY BEGIN

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7-2 校园角色类设计(学生Student、教员Faculty和职员Staff)

hireDate; private String title; public Faculty(String name, int age, String employeeID, int...year, int month, int day, String title) { super(name, age); this.employeeID = employeeID...; } } //派生类 Staff 职员 class Staff extends Role { private String employeeID; private LocalDate...hireDate; private String position; public Staff(String name, int age, String employeeID, int...year, int month, int day, String position) { super(name, age); this.employeeID = employeeID

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SQL Server实战指南

CREATE TABLE Employees ( EmployeeID INT PRIMARY KEY, FirstName NVARCHAR(50), LastName...UPDATE Employees SET FirstName = 'Jane' WHERE EmployeeID = 1; -- 更新Employees表中EmployeeID为1的记录，将FirstName...代码示例：sql DELETE FROM Employees WHERE EmployeeID = 1;-- 删除Employees表中EmployeeID为1的记录。...CREATE PROCEDURE GetEmployeeByID @EmployeeID INT AS BEGIN SELECT * FROM Employees WHERE EmployeeID...= @EmployeeID; END; -- 创建一个名为GetEmployeeByID的存储过程。

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递归查询

WHERE ManagerID IS NULL UNION ALL SELECT e.ManagerID, e.EmployeeID...) SELECT ManagerID, EmployeeID, EmployeeLevel FROM DirectReports...WHERE ManagerID IS NULL UNION ALL SELECT e.ManagerID, e.EmployeeID...) SELECT ManagerID, EmployeeID, EmployeeLevel FROM DirectReports...) SELECT EmployeeID, Name, Title, EmployeeLevel FROM DirectReports

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SQL中 WITH AS 的使用方法

INNER JOIN DirectReports d ON e.ManagerID = d.EmployeeID ) SELECT ManagerID, EmployeeID, EmployeeLevel...FROM DirectReports ; --使用递归公用表表达式显示递归的两个级别 WITH DirectReports(ManagerID, EmployeeID, EmployeeLevel...e INNER JOIN DirectReports d ON e.ManagerID = d.EmployeeID ) SELECT ManagerID, EmployeeID...以下示例显示了更正后的代码 WITH cte (EmployeeID, ManagerID, Title) AS ( SELECT EmployeeID, ManagerID, Title...EmployeeID, ManagerID, Title FROM cte 5.

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MyBatis传入参数为list、数组、map写法

collection属性值就是传入的List或array对象在自己封装的map里面的key. 2.实践-实体类 public class Employees { private Integer employeeId...from EMPLOYEES e where e.EMPLOYEE_ID in employeeId..." index="index" open="(" close=")" separator=","> #{employeeId}..." index="index" open="(" close=")" separator=","> #{employeeId} ..." index="index" open="(" close=")" separator=","> #{employeeId

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SQLServer中的CTE通用表表达式

MAX(OrderDate) AS MaxDate 5 FROM Orders 6 GROUP BY EmployeeID 7 GO 8 9 SELECT 10 e.EmployeeID...= oe.EmployeeID 15 INNER JOIN vwMyView AS om ON e.ReportsTo = om.EmployeeID 另一种方法是创建派生表（也称为内联视图）..., COUNT(*), MAX(OrderDate) 8 FROM Orders 9 GROUP BY EmployeeID) AS oe(EmployeeID,...NumOrders, MaxDate) 10 ON e.EmployeeID = oe.EmployeeID 11 LEFT JOIN 12 (SELECT...EmployeeID, COUNT(*), MAX(OrderDate) 13 FROM Orders 14 GROUP BY EmployeeID) AS om(EmployeeID

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Oracle二维表操作训练

—创建Employees create table Employees( employeeID varchar2(6) primary key, ename varchar2(10) not...key, departmentName varchar2(30) not null, note varchar2(16) ); —创建Salary create table Salary( employeeID...key, income number(8,2) not null, outcome number(8,2) not null ); –插入测试数据 insert into Employees(Employeeid...Departmentid) values(010001,‘王平’,to_date(‘1981-01-05’,‘yyyy-mm-dd’),‘女’,‘1’); insert into Employees(Employeeid...,Departmentid) values(010031,‘李方’,to_date(‘1980-8-4’,‘yyyy-mm-dd’),‘女’,‘4’); insert into Employees(Employeeid

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解决 List 执行 remove 时报异常 java.lang.UnsupportedOperationException

employeeId.equals(workWeight.getApproverId()) && workWeight.getEmployeeId().equals(employeeId)) { //...employeeId.equals(workWeight.getApproverId()) && workWeight.getEmployeeId().equals(employeeId)) { //

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Ajax 案例之三级联动

=" + employeeId + ", departmentId=" + departmentId + ", lastName='" + lastName + '\'' + ...; } public void setEmployeeId(Integer employeeId) { this.employeeId = employeeId...; Employees employees = getValue(sql, employeeId); return employees; } ... lastName email employeeId">... lastName email employeeId">

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分享几个Flowportal.Net BPM中的几个有用的Sql语句

[dbo].BPMInstTasks set Description = b.EmployeeID + ',' + b.ChineseName + ',' + b.EnglishName from ...[dbo].BPMInstTasks set Description = b.EmployeeID + ',' + b.ChineseName + ',' + b.EnglishName from ...[dbo].BPMInstTasks set Description = b.EmployeeID + ',' + b.ChineseName + ',' + b.EnglishName from ...[dbo].BPMInstTasksset Description = b.EmployeeID + ',' + b.ChineseName + ',' + b.EnglishName from ...[dbo].BPMInstTasks set Description = b.EmployeeID + ',' + b.ChineseName + ',' + b.EnglishName+ ',' +

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ASP.NET CORE Study06

}")] public async Task UpdateEmployeeForCompany(Guid companyId, Guid employeeId...// 检验员工信息是否存在 var employeeEntity = await _companyRepository.GetEmployeeAsync(companyId, employeeId...var employeeToAddEntity = _mapper.Map(employee); employeeToAddEntity.Id = employeeId...; return CreatedAtRoute(nameof(GetEmployeeForCompany), new { companyId = companyId, employeeId...(Guid companyId, Guid employeeId, JsonPatchDocument patchDocument) {

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20个数据分析师必知必会的SQL查询语句

所属的国家等内容 SELECT * FROM Employee; 查询指定行的数据我们更进一步，想要查询指定某一行的数据，这里我们查询的是员工的ID、员工的姓以及员工的名，代码如下 SELECT EmployeeID...,Salary FROM Employee; 排序排序用到的则是ORDER BY方法，例如我们想要按照员工的名来进行排序，代码如下 SELECT EmployeeID, FirstName FROM...代码如下 SELECT EmployeeID, FirstName FROM Employee ORDER BY FirstName DESC,EmployeeID; 其中DESC是降序(descending...)的缩写，上面的代理逻辑是对员工的FirstName进行降序的排列，对EmployeeID这列进行升序的排列筛选出不是空值的数据要是我们想要筛选出不是空值的数据，例如我们针对的就是FirstName...，例如FirstName这一列当中含有“a”的数据， SELECT EmployeeID, FirstName FROM Employee WHERE FirstName LIKE '%a%'; CONCAT

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MyBatis根据数组、集合查询

from EMPLOYEES e where e.EMPLOYEE_ID in employeeId..." index="index" open="(" close=")" separator=","> #{employeeId} </...from EMPLOYEES e where e.EMPLOYEE_ID in employeeId..." index="index" open="(" close=")" separator=","> #{employeeId} </..." index="index" open="(" close=")" separator=","> #{employeeId

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SQL2012_创建数据库，创建表，表的内外链接

=m.EmployeeID select e.EmployeeID,e.Title,m.ManagerID,m.Title from HumanResources.Employee e , HumanResources.Employee...m where e.EmployeeID=m.EmployeeID select * from HumanResources.Employee select * from HumanResources.EmployeeDepartmentHistory...h on d.DepartmentID=h.EmployeeID ---!...eid SELECT DISTINCT DepartmentID FROM HumanResources.EmployeeDepartmentHistory WHERE EmployeeID IN...= ( SELECT TITLE FROM HumanResources.Employee WHERE EmployeeID=20 ) ) select EmployeeID

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3 - SQL Server 2008 之使用SQL语句删除约束条件

使用上一节中的Employee表，删除Employee表中的FK_PersonID外键约束及PK_EmployeeID主键约束，其代码如下： USE PersonInfo --使用PersonInfo数据库...GO ALTER TABLE Employee --删除Employee表中的FK_PersonID外键约束及PK_EmployeeID主键约束 DROP CONSTRAINT FK_PersonID...,PK_EmployeeID GO 结果： ?

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neo4j︱Cypher完整案例csv导入、关系联通、高级查询（三）

: row.EmployeeID}) MATCH (manager:Employee {employeeID: row.ReportsTo}) MERGE (employee)-[:REPORTS_TO...,count(*) AS cnt ORDER BY cnt DESC LIMIT 10 按照e.employeeID，进行分类count(*)计数。...MATCH path = (e:Employee)<-[:REPORTS_TO]-(sub) RETURN e.employeeID AS manager, sub.employeeID AS employee...][1..-1] AS path RETURN e.employeeID AS manager, sub.employeeID AS employee, CASE WHEN LENGTH(path) =...-(sub)-[:SOLD]->(order) RETURN e.employeeID, [x IN COLLECT(DISTINCT sub.employeeID) WHERE x e.employeeID

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sql学习~with as用法

CREATE TABLE dbo.MyEmployees ( EmployeeID smallint NOT NULL, FirstName nvarchar(30) NOT NULL,...PRIMARY KEY CLUSTERED (EmployeeID ASC) ); -- Populate the table with values...., Title, EmployeeLevel) AS ( SELECT ManagerID, EmployeeID, Title, 0 AS EmployeeLevel FROM...dbo.MyEmployees WHERE ManagerID IS NULL UNION ALL SELECT e.ManagerID, e.EmployeeID...) SELECT ManagerID, EmployeeID, Title, EmployeeLevel FROM DirectReports ORDER BY ManagerID

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WinForm项目实战——调用存储过程

并在其中创建一个Employees表，表结构如下： CREATE DATABASE EmployeeDB; GO USE EmployeeDB; GO CREATETABLE Employees ( EmployeeID...LastName = @LastName, Department = @Department, Salary = @Salary WHERE EmployeeID...= @EmployeeID; END; - **删除员工信息**： CREATE PROCEDURE DeleteEmployee @EmployeeID INT AS BEGIN...DELETE FROM Employees WHERE EmployeeID = @EmployeeID; END; 三、WinForm界面设计在Visual Studio中创建一个新的WinForm...", employeeID); command.Parameters.AddWithValue("@FirstName", textBox1.Text);

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点击加载更多

SQL Server基础SQL脚本之创建架构、排序

MSSQL存储过程的功能和用法：解密数据库编程的神秘面纱

7-2 校园角色类设计(学生Student、教员Faculty和职员Staff)

SQL Server实战指南

递归查询

SQL中 WITH AS 的使用方法

MyBatis传入参数为list、数组、map写法

SQLServer中的CTE通用表表达式

Oracle二维表操作训练

解决 List 执行 remove 时报异常 java.lang.UnsupportedOperationException

Ajax 案例之三级联动

分享几个Flowportal.Net BPM中的几个有用的Sql语句

ASP.NET CORE Study06

20个数据分析师必知必会的SQL查询语句

MyBatis根据数组、集合查询

SQL2012_创建数据库，创建表，表的内外链接

3 - SQL Server 2008 之使用SQL语句删除约束条件

neo4j︱Cypher完整案例csv导入、关系联通、高级查询（三）

sql学习~with as用法

WinForm项目实战——调用存储过程

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