Question

我试图更新员工薪酬，但如果他们与公司合作超过一年，我只想提高工资。我不知道怎么告诉查询一年的部分。我向所有员工加薪，而不仅仅是那些与公司合作超过一年的员工。我如何告诉SQL我只希望员工工作超过365天？

package com.entities;

import java.io.Serializable;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@javax.persistence.Entity
@Table(name="users")
public class User implements Serializable {

/**
 * 
 */
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public int id;

private String name;

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}
}

Answer 1

UPDATE
    TEmployees
SET
    monHourlyRate =  monHourlyRate + 2
WHERE
    dteHireDate <= DATEADD(year,-1,CAST(GETDATE() AS DATE))

您可能会看到一个常见的答案，例如下面的这个有效但如果闰年可能会关闭，因为闰年可能是366天。

UPDATE
    TEmployees
SET
    monHourlyRate =  monHourlyRate + 2
WHERE
    DATEDIFF(DAY,dteHireDate,CAST(GETDATE() AS DATE)) + 1 >= 365

Answer 2

您可以使用

UPDATE
    TEmployees
SET
    monHourlyRate =  monHourlyRate + 2
WHERE
    dteHireDate < DATEADD(DAY, -365, CAST(GETDATE() AS DATE))

Answer 3

UPDATE
    TEmployees
SET
    monHourlyRate =  monHourlyRate + 2
WHERE
    dteHireDate < DATEADD(YY,-1,CAST(GETDATE() AS DATE))

Answer 4

试试这个：

UPDATE
    TEmployees
SET
    monHourlyRate =  monHourlyRate + 2
WHERE
    dteHireDate <= DATEADD(year,-1, (GETDATE())

如果工作超过一年，更新员工工资2美元

4 个答案: