what is table index

Transferred from: http://www.cnblogs.com/whiteyun/archive/2009/08/12/1543184.htmlThe base library is a LUA built-in library that does not require additional loadingAssert (v [, message])Function: Equivalent to the assertion of C,Parameters:V: When

Secondary index and index joins are the basic features that most business systems require the storage engine to provide, and the RDBMS has long been supportive, and the NoSQL camp is groping for the best solution that fits its own

If we want to optimize the database, we can use the following five methods to optimize the database system: If we want to optimize the database, we can use the following five methods to optimize the database system: 1.1.1 Summary If we want to

[Root @ iptvdb ~] # Su-oracle-Bash-3.2 $ sqlplus/nolog SQL * Plus: Release 10.2.0.1.0-Production on Mon Oct 24 10:36:29 2011 Copyright (c) 1982,200 5, Oracle. All rights reserved. SQL> conn/as sysdbaConnected.SQL> create directory exp as

Document directory The following table lists the public secondary index solutions: The Join Operation between secondary indexes and indexes is a basic feature that the Online business system requires the storage engine to provide. RDBMS

1. Range partitioning: A range partition maps data to each partition based on the range. This range is determined by the partition key you specified when creating the partition. This partitioning method is the most commonly used, and the partition

From: http://rdc.taobao.com/team/jm/archives/951   The join of secondary indexes and indexes is a basic feature that most business systems require the storage engine to provide. RDBMS has long supported it, and the nosql camp is exploring the best

Address Translation ==================== The memory manager creates a data structure (page tables) called a page table. The CPU uses this data structure to convert a virtual address to a physical address. each virtual address is related to a system

Import java. util. arrays; Public class sequencelist { Private int default_size = 16;// Save the length of the arrayPrivate int capacity;// Define an array to save the elements of the ordered linear tablePrivate object [] elementdata;// Save

1 Working Principle of ARM920T MMU Displays the MMU address conversion relationship. Address of the first-level table item (PMD) = (TLB) & (0xffffc000) + (Table index) Note 1: TLB (translate Table Base), that is, the base address of the conversion

 1. Oracle startup and Shutdown 1. In a single-host environment To start or shut down the Oracle system, you must first switch to the Oracle user, as shown below: Su-oraclea: Start the Oracle System Oracle> svrmgrl Svrmgr> connect internal Svrmgr>

In Oracle databases, tables, indexes, stored procedures, and functions are all objects.The schema name is the same as the user name, but not the same as the user. If the user does not have any objects, the schema does not exist.I. TableORACLE tables

ORA600 [13011] logical error analysis and solution for tables and index data I. Problem Overview 1. database environment: Oracle Database 11.2.0.3.0 for Oracle Linux Server release 6.4, RAC, Virtual Machine 2, inspection found a Database alert. log

Working principle of ThreadLocal in Android message mechanism, androidthreadlocal We should be familiar with the messaging mechanism, which is inevitably involved in daily development. From the perspective of development, Handler is the upper-layer

LuaAboutFunction libraryBasic operation learning notes are the content to be introduced in this article.Function libraryInLuaFor more information, see the detailed description. BasicFunction libraryIsLuaBuilt-inFunction library, No additional load

1.Database index You can apply the index concept to a database table. When a table contains a large number of records, it takes a long time for Oracle to look up the close-up records in the table-just as it takes a long time to look up the book

Note: The original text is not detailed or correct. I have supplemented and improved some content. If there are still some incorrect content, please correct me. 1. Lua class implementation I searched several types of implementations on the Internet,

References: ts_136212v110100p133 Function gen_out = interleaver_3gpp2 (N) table = [40 3 10 48 7 12 56 19 64 7 16 72 7 18 80 11 20 88 5 22 96 11 24 104 7 26 112 41 84 120 90 103 15 32 128 9 34 144 17 108 152 9 38 160 21 120 168 101 84 176 21 44 184 5

The join of secondary indexes and indexes is a basic feature that most business systems require the storage engine to provide. RDBMS has long supported it, and the nosql camp is exploring the best solution that suits its own characteristics.This

The code for this article is my encapsulated Excel processing class, which includes determining whether Excel exists, whether a table index exists, creating an Excel file, deleting an Excel file, writing information to Excel, and reading data from