tmp for cassandra batch delete】的更多相关文章

now i have no time to verify this bash script. it is hard for me to delete each data via primary key #!/bin/bash if [[ ${1} == "" ]];then echo "Please indicate the cassandra Address." echo "Use this cmd like this:" echo "…
Linux 系统安装Cassandra 一.Cassandra需要安装jdk支持,首先安装jdk 自行百度查找安装 二.下载Cassandra 官网地址: https://cassandra.apache.org/ 最新安装包:http://mirrors.tuna.tsinghua.edu.cn/apache/cassandra/3.11.5/apache-cassandra-3.11.5-bin.tar.gz 登录到服务器: cd /opt/wget http://mirrors.tuna.…
环境需求 jdk8 root@node01:~# java -version java version "1.8.0_202" Java(TM) SE Runtime Environment (build 1.8.0_202-b08) Java HotSpot(TM) 64-Bit Server VM (build 25.202-b08, mixed mode) 配置jdk请参考: https://www.cnblogs.com/ronnieyuan/p/11461377.html p…
Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -> 3 -> 4 and you are given the third node with value 3, the linked list should become 1 -> 2 ->…
Implement an algorithm to delete a node in the middle of a singly linked list, given only access to that node. Have you met this question in a real interview?     Example Given 1->2->3->4, and node 3. return 1->2->4 LeetCode上的原题,请参见我之前的博客De…
237. Delete Node in a Linked Lis t Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -> 3 -> 4 and you are given the third node with value 3, the linked…
在日常运维工作中,我们经常用到rsync这个同步神器.有时在同步两个目录时,会要求删除目标目录中比源目录多出的文件,这种情况下,就可用到rsync的--delete参数来实现这个需求了. 实例说明:在服务器A上同步/tmp/work目录到远程服务器B的/tmp/work目录下(A和B已经提前做好ssh无密码信任跳转关系了),同时删除B服务器/tmp/work目录下相比于A服务器/tmp/work中多余的文件最近在处理策划资源文件的时候需要将目录A的文件全部同步到目录B的文件,并且把目录B内多余的…
//批量删除 public void delBooks(String[] ids) throws SQLException { QueryRunner qr = new QueryRunner(C3P0Utils.getDataSource()); Object[][] params = new Object[ids.length][];//高维也就是行数确定执行sql语句的次数,低维也就是列数是给?赋值 for (int i = 0; i < params.length; i++) {//循环…
编写一个函数,在给定单链表一个结点(非尾结点)的情况下,删除该结点. 假设该链表为1 -> 2 -> 3 -> 4 并且给定你链表中第三个值为3的节点,在调用你的函数后,该链表应变为1 -> 2 -> 4. 详见:https://leetcode.com/problems/delete-node-in-a-linked-list/description/ Java实现: /** * Definition for singly-linked list. * public cla…
Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Given linked list -- head = [4,5,1,9], which looks like following: 4 -> 5 -> 1 -> 9 Example 1: Input: head = [4,5,1,9], node = 5 Output:…