olap db

As an embedded database system with a long history, berkeleydb is mainly used in Unix/Linux operating systems. Its design philosophy is simple, compact, reliable, and high-performance. This article is an entry-level guide for DB development. It focuses on the core data structure and Data Access Algorithm of dB, and demonstrates how to use DB through actual code.

DB Query Analyzer 5.03 is distributed, table name will be enclosed in square bracket automatically while accessing MS EXCEL 1 Preface DB Query Analyzer is presented by Master Gen feng, Ma from Chinese Mainland. it has English version named 'db Query Analyzer 'and Simplified Chinese version named' universal database Query Analyzer (

Implementation principle of DB database horizontal segmentation-Database Sharding, table sharding, master/slave, cluster, and server load balancer bitsCN.com Chapter 2 Introduction With the popularization of Internet applications, the storage and access of massive data has become the bottleneck of system design. For a large Internet application, billions of PVS per day will undoubtedly cause a considerable load on the database. This poses great proble

Tags: mysq Open Data Transfer Write nbsp connectivity Arc Div Relational databaseOle DB is the full Name object link and embed, which is the object connection and embedding. Is Microsoft's strategic low-level application interface to different data sources. OLE DB includes not only the structured Problem language (SQL) capability of the Microsoft-funded standard data Interface Open Database Connectivity (OD

Database Connection Technology-ole db, database connection oledbThe previous blog introduced ODBC and JDBC. This is a brief introduction to ole db. The ODBC summary does not know whether it is not posted on the blog or not on this blog. I will try again. If not, I will try again later. Okay. Let's get started.Before that, we have introduced that the basic structure of ODBC and JDBC is the same, that is, the

Copy codeThe Code is as follows: Function getConfig (config, args ){ If (args ){ For (var proto in args ){ Config [proto] = args [proto]; } } Return config; } Function getConnection (){ Return new ActiveXObject ("ADODB. Connection "); } Function getRecordset (){ Return new ActiveXObject ("ADODB. Recordset "); } Var DB = {}; DB. ConnectionString = 'provider = Sqloledb; User ID = sa; Password = sa; Initial Ca

Berkeley dB online resources :Http://www.oracle.com/database/berkeley-db/index.htmlHttp://www.oracle.com/technology/software/products/berkeley-db/db/index.html[2006-12-13] the current database version is 4.5.20.Http://www.oracle.com/technology/software/products/berkeley-db/h

Copy Code code as follows: function getconfig (config, args) { if (args) { for (var proto in args) { Config[proto] = Args[proto]; } } return config; } function getconnection () { return new ActiveXObject ("ADODB.") Connection "); } function GetRecordSet () { return new ActiveXObject ("ADODB.") Recordset "); } var DB = {}; Db. ConnectionString = ' provider=sqloledb; User Id=sa; Password=

Why can a member method in a DB class in PHP be used as a static method! Please advise? This is a db. php file, which contains a DB class nbsp; DB { nbsp; function nbsp; amp; object () nbsp; nbsp; nbsp ;{ nbsp; nbsp; why can a member method in a DB class in PHP be us

Berkeley DB--Java and. NET and some applications Introduction Berkeley DB In C/C ++ Environment is very convenient, especially C Because Berkeley DB Is to use C Developed (it seems that many of the fierce software is used C Developed, rather C ++ ). However Java And . Net Developers can also use Berkeley

Label: [[email protected] ~]# grep "binlog-do-db"/etc/my.cnf binlog-do-db = Test [[email protected] ~]# grep "binlog-do -db "/etc/my.cnf binlog-do-db=test binlog-do-db=test2 db:mysql> use test2; Database changed mysql> show tables; Empty Set (0.00 sec) mysql>

actual operations. Well, let's not talk about it. The following is the official start: MongoDB update has two commands: 1). Update () command DB. collection. Update (criteria, objnew, upsert, multi) Criteria: Query condition for update, similar toObjnew: Update objects and some updated operators (such as $, $ Inc...) can also be understoodUpsert: This parameter indicates whether to insert objnew if the update record does not exist. True indicates ins

Why can a member method in a DB class in PHP be used as a static method! Please advise? This is a db. php file, which contains a DB class nbsp; DB { nbsp; function nbsp; amp; object () nbsp; nbsp; nbsp ;{ why can a member method in a DB class in nbsp PHP be used as a s

The 10th tip of DB query Analyzer -- Higher efficiency to export SQL result by DB query analyzer than B2 Ma gen-Feng (Guangdong unitoll services ininitialized ated, Guangzhou 510300) AbstractIn the latest version 4.01, a useful function is added in dB query analyzer. users can save the result fetched with too into records into file in high efficiency. further m

Application of Transaction Management in dB query analyzer in DB2 Magenfeng (Guangdong Union Electronic Toll Co., Ltd., Guangzhou 510300, China) SummaryTransaction control is one of the key technologies in the database application system. It outlines the concept of transaction control and transaction control in dB query analyzer, this section describes how to use the transaction control in

In PHP website development, it supports various database engines, such as Mysql, Mssql, Pgsql, and sqlite, and provides different functions as interfaces for various database systems, it brings a lot of convenience to PHP website developers. But it also brings about the platform portability problem. As the underlying database changes, the PHP code must also change. There are various solutions to this problem, such as using the php adodb class, php pear db