VLDB98 - Microsoft Research
... And All Along Stonebraker’s Opinion: “The history of DBMS research is littered with innumerable proposals to construct hardware database machines to provide high performance operations. In general these have been proposed by hardware types with a clever solution in searchof a problem on which it mi ...
... And All Along Stonebraker’s Opinion: “The history of DBMS research is littered with innumerable proposals to construct hardware database machines to provide high performance operations. In general these have been proposed by hardware types with a clever solution in searchof a problem on which it mi ...
MYCH8
... Attributes in WHERE clause are candidates for index keys. Exact match condition suggests hash index. Range query suggests tree index. • Clustering is especially useful for range queries; can also help on equality queries if there are many duplicates. ...
... Attributes in WHERE clause are candidates for index keys. Exact match condition suggests hash index. Range query suggests tree index. • Clustering is especially useful for range queries; can also help on equality queries if there are many duplicates. ...
No Slide Title
... Provides a powerful and flexible security mechanism by hiding parts of database from certain users. ...
... Provides a powerful and flexible security mechanism by hiding parts of database from certain users. ...
MYCH8
... Record id (rid) is sufficient to physically locate record Indexes are data structures that allow us to find the record ids of records with given values in index search key fields ...
... Record id (rid) is sufficient to physically locate record Indexes are data structures that allow us to find the record ids of records with given values in index search key fields ...
9781111533960_PPT_ch03
... Data Warehouses • Data warehouse – Collection of data used to support decision-making applications and generate business intelligence ...
... Data Warehouses • Data warehouse – Collection of data used to support decision-making applications and generate business intelligence ...
Database Engineering from the Category Theory - CEUR
... mapping between relational and object models [5]. The same could be obtained if we find all the mappings between one and another DB structure — technology (RDB, ODB, XDB). But a more convenient way would be to find out the way of general description and prove that these mappings have to exist or tha ...
... mapping between relational and object models [5]. The same could be obtained if we find all the mappings between one and another DB structure — technology (RDB, ODB, XDB). But a more convenient way would be to find out the way of general description and prove that these mappings have to exist or tha ...
DataGuides: Enabling Query Formulation and
... • We provide a simple algorithm to build strong DataGuides and describe how to keep them consistent when the underlying database changes. • We show how to store sample values and other statistical information in a DataGuide. • We demonstrate how DataGuides have been successfully integrated into Lore ...
... • We provide a simple algorithm to build strong DataGuides and describe how to keep them consistent when the underlying database changes. • We show how to store sample values and other statistical information in a DataGuide. • We demonstrate how DataGuides have been successfully integrated into Lore ...
3. RMAN Setup - SkillBuilders
... We can see in this slide that starting RMAN can be done differently. For example, RMAN starts without any parameters; connections to the databases can be done separately with the CONNECT command after entering this RMAN environment. This is a more secure connection method because it prevents passwor ...
... We can see in this slide that starting RMAN can be done differently. For example, RMAN starts without any parameters; connections to the databases can be done separately with the CONNECT command after entering this RMAN environment. This is a more secure connection method because it prevents passwor ...
database - GCG-42
... • Multiple file formats, duplication of information in different files – Difficulty in accessing data • Need to write a new program to carry out each new task – Data isolation — multiple files and formats – Integrity problems • Integrity constraints (e.g. account balance > 0) become part of program ...
... • Multiple file formats, duplication of information in different files – Difficulty in accessing data • Need to write a new program to carry out each new task – Data isolation — multiple files and formats – Integrity problems • Integrity constraints (e.g. account balance > 0) become part of program ...
Tutorial on creating Databases with the MySQL DBManager
... containing the fields to update. You may not update multiple tables simultaneously. The SET clause contains the list of fields you wish to update. You separate the list with commas. Each item in the list consists of a field name, an equals sign, and a new value. You can use a constant, a variable, a ...
... containing the fields to update. You may not update multiple tables simultaneously. The SET clause contains the list of fields you wish to update. You separate the list with commas. Each item in the list consists of a field name, an equals sign, and a new value. You can use a constant, a variable, a ...
Application Context
... having which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used. ...
... having which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used. ...
Designing a segmented, Indexd data warehouse and performance analysis
... Last but not the least, I thank my wonderful family and God for keeping my endowed with their blessings. ...
... Last but not the least, I thank my wonderful family and God for keeping my endowed with their blessings. ...
Slide 1
... o Pages order by the number of times words in the query appear over the total number of words on the ...
... o Pages order by the number of times words in the query appear over the total number of words on the ...
Data Integrity
... system at its design stage through the use of standard rules and procedures, and is maintained through the use of error checking and validation routines. ...
... system at its design stage through the use of standard rules and procedures, and is maintained through the use of error checking and validation routines. ...
Lecture 28
... repeated reads of same record must return same value. However, a transaction may not be serializable – it may find some records inserted by a transaction but not find others. • Read committed — only committed records can be read, but successive reads of record may return different (but committed) va ...
... repeated reads of same record must return same value. However, a transaction may not be serializable – it may find some records inserted by a transaction but not find others. • Read committed — only committed records can be read, but successive reads of record may return different (but committed) va ...
XML-to-RDB Mapping Analysis Tools
... We generate two ASGs to hold hierarchy and constraints – View ASG is constructed from an XAT representing a Query View – Base ASG is constructed by querying an underlying database and the leaf nodes of the View ASG We created a GUI to facilitate ...
... We generate two ASGs to hold hierarchy and constraints – View ASG is constructed from an XAT representing a Query View – Base ASG is constructed by querying an underlying database and the leaf nodes of the View ASG We created a GUI to facilitate ...
notice!
... • Exposes methods to create and update database • Takes care of Database Caching – (Applications should still cache returned values as well, to preserve network bandwidth) ...
... • Exposes methods to create and update database • Takes care of Database Caching – (Applications should still cache returned values as well, to preserve network bandwidth) ...
A Methodology for Database System Performance Evaluation
... our measure of degree of data sharing. If the degree of data sharing is 0%, there is no data sharing amongst the concurrently executing queries and each query will reference its own partition of the database (or a separate database). Furthermore, all queries from the same application will reference ...
... our measure of degree of data sharing. If the degree of data sharing is 0%, there is no data sharing amongst the concurrently executing queries and each query will reference its own partition of the database (or a separate database). Furthermore, all queries from the same application will reference ...
2 The DemoGRID Project
... The client is a workstation or Grid Portal server, which requests a token on the user's behalf to be used later in the Grid to prove the user's identity. The user's original certificate (cert) is stored on the Online Credential Retrieval (OCR) server with the secret key (secret). It may occur that m ...
... The client is a workstation or Grid Portal server, which requests a token on the user's behalf to be used later in the Grid to prove the user's identity. The user's original certificate (cert) is stored on the Online Credential Retrieval (OCR) server with the secret key (secret). It may occur that m ...
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... SQL: The Data Manipulation Language The SQL commands within the Data Manipulation Language are commonly used by programmers, so I’ll describe them in more detail. There are four main commands: select, insert, update, and delete. All these commands can be activated using a Query component, but only s ...
... SQL: The Data Manipulation Language The SQL commands within the Data Manipulation Language are commonly used by programmers, so I’ll describe them in more detail. There are four main commands: select, insert, update, and delete. All these commands can be activated using a Query component, but only s ...
Fast Nearest Neighbor Search with Keywords - OPUS
... A spatial database manages multidimensional objects (such as points, rectangles, etc.), and provides fast access to those objects based on different selection criteria. The importance of spatial databases is reflected by the convenience of modeling entities of reality in a geometric manner. For exam ...
... A spatial database manages multidimensional objects (such as points, rectangles, etc.), and provides fast access to those objects based on different selection criteria. The importance of spatial databases is reflected by the convenience of modeling entities of reality in a geometric manner. For exam ...
Best Practices for Oracle Database 10g RAC on Microsoft 64bit
... Plan to certify and support 32-bit Client and Server Latest Patchset plus possible patches – exact requirements will be documented when certification is completed and announced ...
... Plan to certify and support 32-bit Client and Server Latest Patchset plus possible patches – exact requirements will be documented when certification is completed and announced ...
FaceKit: A Database Interface Design Toolkit
... ways of rapidly constructing an interface. Instead of writing code to generate an interface technique, the user may invoke a method in the database,or use a query language to define the technique. Interface objects previously created may also be used, becausethey too are stored in the database. The ...
... ways of rapidly constructing an interface. Instead of writing code to generate an interface technique, the user may invoke a method in the database,or use a query language to define the technique. Interface objects previously created may also be used, becausethey too are stored in the database. The ...
Microsoft Jet Database Engine
The Microsoft Jet Database Engine is a database engine on which several Microsoft products have been built. A database engine is the underlying component of a database, a collection of information stored on a computer in a systematic way. The first version of Jet was developed in 1992, consisting of three modules which could be used to manipulate a database.Database connect for MicrosoftJET stands for Joint Engine Technology, sometimes being referred to as Microsoft JET Engine or simply Jet. Microsoft Access and Visual Basic use or have used Jet as their underlying database engine. It has since been superseded for general use, however, first by Microsoft Desktop Engine (MSDE), then later by SQL Server Express. For larger database needs, Jet databases can be upgraded (or, in Microsoft parlance, ""up-sized"") to Microsoft's flagship database product, SQL Server.However, this does not mean that a MS Jet (Red) database cannot match MS SQL Server in storage capacity. A 5 billion record MS Jet (Red) database with compression and encryption turned on requires about 1 terabyte of disk storage space, comprising hundreds of (*.mdb) files, each acting as partial table, and not as a database in itself.Over the years, Jet has become almost synonymous with Microsoft Access, to the extent that many people refer to a Jet database as an ""Access database"".