摘要:
最近有很多朋友用到select new 方法。下面我给大家举个简单的例子。定义类:public class TycoonRow implements Serializable { private static final long serialVersionUID = -8902581963250812345L; private int id; private String name; public TycoonRow(int id, String name) { super(); this.id = id; this.checkNo = name; } public int getId... 阅读全文
摘要:
sql top 实例sql server 语法:SELECT TOP number|percent column_name(s)FROM table_name例子:SELECT TOP 2 * FROM employee sql 语句中 percent 的用法:从 "employee" 表中选取 50% 的记录。我们可以使用下面的 SELECT 语句:SELECT TOP 50 PERCENT * FROM employeeDB2 中的实现方式为:语法为:select column_name(s)from table_namefetch first number rows 阅读全文
摘要:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>first-3</title><meta http-equiv="Content-Type" con 阅读全文
摘要:
刷新maven异常信息: Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project SpringHandwrite02: There are 阅读全文
摘要:
1、 description: use combined and and or query in the mongo 2、sql query statement: select * from deviceInfo where devId='11010001' and (sndStatus=0 or 阅读全文