一.前言 因公司需要选用elasticsearch做全文检索,持久化存储选用的是mongodb,但是希望mongodb里面的数据发生改变可以实时同步到elasticsearch上,一开始主要使用elasticsearch v1.7.2的版本,mongo-river可以搞定这个问题.随着elasticsearch的升级,发现elasticsearch已经放弃了mongo-river,咋整......Google之后发现一神器mongo-connector,国外大神用python写的工具而且Mong

有些场景下,需要隔离不同的DB,彼此DB之间不能互相访问,但实际的业务场景又需要从A DB访问B DB的情形,这时怎么办?我认为有如下常规的三种方案: 1.双方提供RESET API,需要访问不同DB数据时,可以通过API来获取指定数据: 这种方案优点是隔离性.定制性强,统一出入口,只能通过指定的API访问指定的数据:缺点与优点是对立的,也就是定制性太强,导致每次业务发生变更,需要访问不同数据的时候,需要双方更改API的入参或返参,降低了开发效率:而且无法使用表JOIN,这样在某些情况下也会导致

The 4th tip of DB QueryAnalyzer Ma Genfeng (Guangdong Unitoll Services incorporated, Guangzhou 510300) Abstract   DB Query Analyzer has a useful function to select a row in grid filled with query record set returned by RDBMS.                   Key wo

The 2nd tip of DB Query Analyzer                               Ma Genfeng   (Guangdong Unitoll Services incorporated, Guangzhou 510300) Abstract   DB Query Analyzer provides a pop menu to generate frequent used SQL statement coincided with the connec

[本文版权归微信公众号"代码艺术"(ID:onblog)所有,若是转载请务必保留本段原创声明,违者必究.若是文章有不足之处,欢迎关注微信公众号私信与我进行交流!] 下面这个例子既写明如何利用 node.js 上传本地图片到服务器,又将 http 异步请求方法改为同步. 上传图片主要借用的是 form-data 模块. 异步变同步主要还是利用 Promise 类与 async/await 关键字相结合. const https = require('https'); const fs =

The 5th tip of DB Query Analyzer             Ma Genfeng   (Guangdong UnitollServices incorporated, Guangzhou510300) Abstract   In DB Query Analyzer, it's very convenientto search key word in SQL edit/ Result area.           Key words   DB Query Analy

DB Query Analyzer 5.04 is released, 63 articles concerned have been published DB QueryAnalyzer is presented by Master Gen feng, Ma from Chinese Mainland. It has English versionnamed ‘DB Query Analyzer’ and Simplified Chinese version named  . DB Query

Oracle GoldenGate (以下简称ogg)在异种移植os同一种db之间的数据同步. ogg要实现的功能: 同步可以细化到单个表,满足特定的where条件rows同步,称号column同步. ogg 竞争对手:ibm cdc.dell shareplex:dsg.dds等等 环境描写叙述: 源头:windows 2003x64bit. oracle db 11.2.0.3 x64bit 目的端:suse linux .oracle db 11.2.0.3 预先准备: 1.Microso

    1 About DB Query Analyzer DB Query Analyzer is presented by Master Genfeng,Ma from Chinese Mainland. It has English version named 'DB Query Analyzer'and Simplified Chinese version named   . DB Query Analyzer is one of the few excellent Client Too

    1 About DB Query Analyzer DB Query Analyzer is presented by Master Genfeng,Ma from Chinese Mainland. It has English version named 'DB Query Analyzer'and Simplified Chinese version named   . DB Query Analyzer is one of the few excellent Client Too

1 About DB Query Analyzer DB Query Analyzer is presented by Master Genfeng,Ma from Chinese Mainland. It has English version named 'DB Query Analyzer'and Simplified Chinese version named  . DB Query Analyzer is one of the few excellent Client Tools in

How to generate the complex data regularly to Ministry of Transport of P.R.C by DB Query Analyzer 1 About DB Query Analyzer DB Query Analyzer is presented by Master Genfeng, Ma from Chinese Mainland. It has English version named 'DB Query Analyzer' a

      Install and run DB Query Analyzer 6.04 on Microsoft Windows 10  DB Query Analyzer is presented by Master Genfeng, Ma from Chinese Mainland. It has English version named 'DB Query Analyzer' and Simplified Chinese version named   . DB Query Analy

    DB Query Analyzer 6.04 is distributed,78 articles concerned have been published  DB Query Analyzeris presented by Master Genfeng, Ma from Chinese Mainland. It has Englishversion named 'DB Query Analyzer' and Simplified Chinese versionnamed   . DB

How to create DB2user function easily by DB Query Analyzer 6.03 Ma Genfeng (Guangdong Unitoll Servicesincorporated, Guangzhou510300) Abstract  The latest version of DB QueryAnalyzer is 6.03 In DB Query Analyzer 6.03, without changing any Windows OS s

go提供了一套统一操作database的sql接口,任何第三方都可以通过实现相应的driver来访问感兴趣的数据库.譬如我们项目中使用的Go-MySQL-Driver. go提供了一套很好的机制来处理数据库的查询操作,譬如官方的例子: age := 27 rows, err := db.Query("SELECT name FROM users WHERE age=?", age) if err != nil { log.Fatal(err) } for rows.Next() { v

Demonstration of DB Query Analyzer 6.03 Installation and Running on Microsoft Windows 8 Ma Genfeng (Guangdong Unitoll Services incorporated, Guangzhou 510300) Abstract   The latest version of DB Query Analyzer is 6.03 In 6.03, It resolve the BUG whic

  DB Query Analyzer 6.03, the most excellent Universal database Access tools on any Microsoft Windows OS DB Query Analyzer is presented by Master Genfeng, Ma from Chinese Mainland. It has English version named 'DB Query Analyzer' and Simplified Chi

               The 16th tip of DB Query Analyzer      ---- SQL Schedule will be executed even DBMS has ever been down in 6.02 Ma Genfeng (Guangdong Unitoll Services incorporated, Guangzhou 510300) Abstract   The latest version of DB Query Analyzer is

    UnlikeWinXP, VISTA, Windows2000, Windows Nt and Win98,Windows 7 / Windows 8 / Windows 10 select '/'  as the default seperator character between short date. Although the former windows OS chooses '-'as the default setting. Iam very sorry to inform

DB Query Analyzer is presented by Master Genfeng, Ma from Chinese Mainland. It has English version named 'DB Query Analyzer' and Simplified Chinese version named   . DB Query Analyzer is one of the few excellent Client Tools in the world for its' pow