eid

触发器、存储过程和事务处理使用

馋奶兔 提交于 2020-02-25 07:56:13
-- 创建数据库 scroll dynamic create database Database1 GO -- 置此数据库为当前数据库 use Database1 GO -- 创建学生表 create table student ( SID varchar ( 20 ) primary key , -- 学生编号 SName varchar ( 20 ), -- 学生姓名 SClass varchar ( 20 ), -- 学生班级 SSex varchar ( 10 ), -- 学生性别 SScore float default ( 0 ) check (SScore >= 0 ) -- 学生平均分 ) GO -- 创建课程表 create table class ( EID varchar ( 20 ) primary key , -- 课程编号 EName varchar ( 20 ), -- 课程名称 ETime int check (ETime >= 0 ) -- 课程课时 ) GO -- 创建分数表 create table score ( SID varchar ( 20 ), -- 学生编号 EID varchar ( 20 ), -- 课程编号 EScore float , -- 课程分数 primary key (SID,EID), -- 定义主码

SpringBoot使用druid数据源整合mybatis(注解版)并实现增删改查(源码)(一个简单的例子)(没有使用逆向工程)

梦想与她 提交于 2020-02-23 23:00:09
第一步: 导入依赖: < dependency > < groupId > org . springframework . boot < / groupId > < artifactId > spring - boot - starter - jdbc < / artifactId > < / dependency > < dependency > < groupId > org . springframework . boot < / groupId > < artifactId > spring - boot - starter - web < / artifactId > < / dependency > < dependency > < groupId > org . mybatis . spring . boot < / groupId > < artifactId > mybatis - spring - boot - starter < / artifactId > < version > 2.1 .1 < / version > < / dependency > < dependency > < groupId > mysql < / groupId > < artifactId > mysql - connector - java < / artifactId >

不使用Sqoop流程,利用CacheManager直接完成SparkSQL数据流直接回写Oracle

ぐ巨炮叔叔 提交于 2020-02-03 16:02:39
以前都是使用Sqoop来完成数据从生成的hdfs数据存储上来抽取至oracle的数据库:sqoop抽取语句: sqoop export --connect "jdbc:oracle:thin:@ip:port:sid" --username 用户名 --password 密码 --table sid.表名 --export-dir hdfs://nameservice1/user/XXX(hdfs地址) --fields-terminated-by "\001" --null-non-string '' --null-string '' -m 10; 由于项目需求我们现在要完成在代码中省城所需字段之后,直接回写到oracle中,因为数据量每天都很大,用实例或者List存有很大的局限性,可能会出现内存异常等不可预料的东西,所以我通过缓存器机制来存储数据,然后进行生成结果的临时表直接回写(后面做的hbase接口封装批量提交也比较类似) 废话不多说直接上代码: 1、建立缓存实体 package usi.java.oracle; /** @author HK @date 2011-2-15 下午06:45:57 */ public class Cache { private String key; private Object value; private long timeOut;

在论坛中出现的比较难的sql问题:29(row_number函数 组内某列的值连续出现3次标记出来)

被刻印的时光 ゝ 提交于 2019-12-11 00:42:01
原文: 在论坛中出现的比较难的sql问题:29(row_number函数 组内某列的值连续出现3次标记出来) 在论坛中,遇到了不少比较难的sql问题,虽然自己都能解决,但发现过几天后,就记不起来了,也忘记解决的方法了。 所以,觉得有必要记录下来,这样以后再次碰到这类问题,也能从中获取解答的思路。 组内某列的值连续出现3次标记出来 如下,eid为人员ID,对于同一个EID,date列连续出现3次以上的,FLAG列标记为1. 尽量用1条UPDATE语句! eid date flag 1 2013-3-1 1 2013-3-2 1 2013-3-4 1 2013-3-5 1 2013-3-7 1 1 2013-3-8 1 1 2013-3-9 1 1 2013-3-11 1 2013-3-12 1 2013-3-14 1 1 2013-3-15 1 1 2013-3-16 1 1 2013-3-18 2 2013-3-1 2 2013-3-2 2 2013-3-4 2 2013-3-6 1 2 2013-3-7 1 2 2013-3-8 1 2 2013-3-9 1 2 2013-3-11 1 2 2013-3-12 1 2 2013-3-13 1 2 2013-3-15 2 2013-3-16 2 2013-3-18 1 2 2013-3-19 1 2 2013-3-20 1 3

mongodb 学习

喜你入骨 提交于 2019-12-05 01:50:50
1、统计查询 eid记录重复 查询大于1 eid重复的记录 db.xiezi.aggregate( [ { $group: { _id: "$eid", count: { $sum: 1 } } }, { $match: { count: { $gt: 1 } } }] )SELECT eid, count(*) FROM xiezi BY eid HAVING count(*) > 1 来源: https://www.cnblogs.com/weiyiyong/p/11895807.html

python+selenium提取公共的功能和调用

ぐ巨炮叔叔 提交于 2019-12-05 00:13:08
def login(driver): driver.maximize_window() driver.find_element(By.ID, "eid").click() driver.find_element(By.ID, "eid").send_keys("wq") driver.find_element(By.ID, "btnSubmit").click() time.sleep(5) return driver 载入使用 def test_addtip(self): # login driver = self.driver driver.get(self.base_url) time.sleep(2) login(driver) time.sleep(2) 用例执行前后 @classmethod def setUpClass(self): self.driver = webdriver.Chrome() self.base_url = "www.baidu.com" self.vars = {} @classmethod def tearDownClass(cls): cls.driver.quit() 来源: https://www.cnblogs.com/seven7777/p/11890582.html

wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)

匿名 (未验证) 提交于 2019-12-03 02:30:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have this strange exception saying wrong ELF class but the wrapper is set correctly. To read Belgiun ID card using this SDK from belgiun ID card issuers official site: http://eid.belgium.be/en/binaries/beid-sdk-3.5.3-ubuntu-9.10-i686-6193_tcm147-94066_tcm406-114986.tgz $ uname -a # Using NetBeans IDE 7.3 in Ubuntu 12.10 64-bit Linux sun-M14xR2 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux $ java -version java version "1.7.0_15" OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1

How to render a Fuid view template without Extbase? I. e an email template by eID

谁说胖子不能爱 提交于 2019-12-01 00:36:18
I want to send an email by a TYPO3 eID script using a Fluid template file to render the mail body. I could not find a simple way how to initialize a Fuid View outside of the normal MVC Extbase context. All sources I found seemed to be outdated and very complex. So what is needed to render a fluid template? Here is a simple function I wrote to render my templates. /** * Renders the fluid email template * @param string $template * @param array $assign * @return string */ public function renderFluidTemplate($template, Array $assign = array()) { $templatePath = \TYPO3\CMS\Core\Utility

How to render a Fuid view template without Extbase? I. e an email template by eID

心已入冬 提交于 2019-11-30 19:55:57
问题 I want to send an email by a TYPO3 eID script using a Fluid template file to render the mail body. I could not find a simple way how to initialize a Fuid View outside of the normal MVC Extbase context. All sources I found seemed to be outdated and very complex. So what is needed to render a fluid template? 回答1: Here is a simple function I wrote to render my templates. /** * Renders the fluid email template * @param string $template * @param array $assign * @return string */ public function

Java基础系列 - JAVA集合ArrayList,Vector,HashMap,HashTable等使用

梦想的初衷 提交于 2019-11-30 02:36:54
package com.test4; import java.util.*; /** * JAVA集合ArrayList,Vector,HashMap,HashTable等使用 */ public class test4 { public static void main(String[] args) { //ArrayList异步,线程不安全,性能高 Vector同步,线程安全,性能低 //定义个ArrayList对象 ArrayList arrayList = new ArrayList(); //显示大小 System.out.println(arrayList.size()); //添加雇员 Employer employer1 = new Employer(1000, "张三", 20); Employer employer2 = new Employer(1001, "李四", 25); Employer employer3 = new Employer(1002, "王五", 30); arrayList.add(employer1); arrayList.add(employer2); arrayList.add(employer3); System.out.println("---------foreach循环ArrayList------------------