Lab 2
... Table space SYSCATSPACE contains the System Catalog tables. It basically contains system information that should not be modified or deleted; otherwise the database will not work correctly. Table space TEMPSPACE1 is used by DB2 when it needs additional space to perform some operations such as sorts. ...
... Table space SYSCATSPACE contains the System Catalog tables. It basically contains system information that should not be modified or deleted; otherwise the database will not work correctly. Table space TEMPSPACE1 is used by DB2 when it needs additional space to perform some operations such as sorts. ...
CS331: Database Programming: Architectures and Issues
... the programming language, so, for example, relations may have to be mapped to iterators. Programming language types are not supported directly in the database, and thus have to be mapped, for example, to relations for storage. The programming language type checker cannot check the legality of embedd ...
... the programming language, so, for example, relations may have to be mapped to iterators. Programming language types are not supported directly in the database, and thus have to be mapped, for example, to relations for storage. The programming language type checker cannot check the legality of embedd ...
Chapter 9 - Joining tables
... Complexity makes speed possible and allows you to get very fast results as the data size grows. By normalizing the data and linking it with integer keys, the overall amount of data which the relational database must scan is far lower than if the data were simply flattened out. It might seem like a t ...
... Complexity makes speed possible and allows you to get very fast results as the data size grows. By normalizing the data and linking it with integer keys, the overall amount of data which the relational database must scan is far lower than if the data were simply flattened out. It might seem like a t ...
Introduction to SQL Server and MySQL
... Responsible for database management, data storage, queries, data manipulation, data integrity, transactions, locking, users, security Executes SQL / T-SQL queries SQL Server Agent – DB monitoring ...
... Responsible for database management, data storage, queries, data manipulation, data integrity, transactions, locking, users, security Executes SQL / T-SQL queries SQL Server Agent – DB monitoring ...
DBC-e03-PP-Chapter-01
... our list into several tables. Somehow the tables must be joined back together • In a relational database, tables are joined together using the value of the data • If a PROJECT has a CUSTOMER, the Customer_ID is stored as a column in the PROJECT table. The value stored in this column can be used to r ...
... our list into several tables. Somehow the tables must be joined back together • In a relational database, tables are joined together using the value of the data • If a PROJECT has a CUSTOMER, the Customer_ID is stored as a column in the PROJECT table. The value stored in this column can be used to r ...
Chapter 17: Recovery System
... 1. Scan backwards from end of log to find the most recent record
2. Continue scanning backwards till a record is found.
3. Need only consider the part of log following above start record.
...
... 1. Scan backwards from end of log to find the most recent
DBC-e03-Chapter-01-PP
... our list into several tables. Somehow the tables must be joined back together • In a relational database, tables are joined together using the value of the data • If a PROJECT has a CUSTOMER, the Customer_ID is stored as a column in the PROJECT table. The value stored in this column can be used to r ...
... our list into several tables. Somehow the tables must be joined back together • In a relational database, tables are joined together using the value of the data • If a PROJECT has a CUSTOMER, the Customer_ID is stored as a column in the PROJECT table. The value stored in this column can be used to r ...
KorthDB6_ch1
... Integrity constraints (e.g., account balance > 0) become “buried” in program code rather than being stated explicitly ...
... Integrity constraints (e.g., account balance > 0) become “buried” in program code rather than being stated explicitly ...
Database Systems: Design, Implementation, and Management
... when concurrent transactions are granted READ access on the basis of a common lock. A shared lock produces no conflict as long as the concurrent transactions are read only. issued when a transaction wants to read data and no exclusive lock is held on that data item. ...
... when concurrent transactions are granted READ access on the basis of a common lock. A shared lock produces no conflict as long as the concurrent transactions are read only. issued when a transaction wants to read data and no exclusive lock is held on that data item. ...
Development of database complex for the CBM experiment
... QA (Quality Assurance) process after mass fabrication. Component database includes mechanical/engineering production data and electronics data (calibrations, chip thresholds etc) which are kept separately in general. Most of the databases should be implemented as relational databases. The exclusion ...
... QA (Quality Assurance) process after mass fabrication. Component database includes mechanical/engineering production data and electronics data (calibrations, chip thresholds etc) which are kept separately in general. Most of the databases should be implemented as relational databases. The exclusion ...
Spatial databases
... advanced SQL, data modelling techniques, implementing a simple database, post relational database models, object-relational and objectoriented models, spatial data structures, spatial indexing e.g. R-Tree, networking, database issues in GIS. The course will involve practical work on a range of appro ...
... advanced SQL, data modelling techniques, implementing a simple database, post relational database models, object-relational and objectoriented models, spatial data structures, spatial indexing e.g. R-Tree, networking, database issues in GIS. The course will involve practical work on a range of appro ...
Chapter 19. Special Topics
... defines application programming interface, and SQL features that must be supported at different levels of compliance X/Open XA standards define transaction management ...
... defines application programming interface, and SQL features that must be supported at different levels of compliance X/Open XA standards define transaction management ...
Java Database Connectivity (JDBC)
... • ODBC has a few commands with lots of complex options. Java prefers simple methods but lots of them. ...
... • ODBC has a few commands with lots of complex options. Java prefers simple methods but lots of them. ...
An Implementation for Nested Relational Databases
... tuple-identifiers of tuples that contain the value of the indexed attribute. Our approach to indexing follows the domain based approach suggested by Missikoff [16] and Missikoff and Scholl [17] for relational databases. In their approach, an atomic value maps to a list of tuple identifiers of tuples ...
... tuple-identifiers of tuples that contain the value of the indexed attribute. Our approach to indexing follows the domain based approach suggested by Missikoff [16] and Missikoff and Scholl [17] for relational databases. In their approach, an atomic value maps to a list of tuple identifiers of tuples ...
5-37 Distributed Databases
... database language search queries • Most DBMS packages offer easier-to-use, point-and-click methods • Translates queries into SQL commands • Natural language query statements are similar to conversational English ...
... database language search queries • Most DBMS packages offer easier-to-use, point-and-click methods • Translates queries into SQL commands • Natural language query statements are similar to conversational English ...
2514 - Custom-written v Off-the
... A small mail order company has decided to upgrade its computer system. It currently stores records of customers in a flat database file; records of purchases and sales using a spreadsheet. The company decides to store all the data using new software. It needs to decide whether to have the softwa ...
... A small mail order company has decided to upgrade its computer system. It currently stores records of customers in a flat database file; records of purchases and sales using a spreadsheet. The company decides to store all the data using new software. It needs to decide whether to have the softwa ...
20InternalDBAspects
... If there are more than about 64000 objects, the bitstrings are divided in so called chunks Abbreviations are used for all 1 or all 0 If a bitmap index is defined for a class automatically an extent bitmap index is maintained: It stores 1 if the Id exists, and 0 if not. ...
... If there are more than about 64000 objects, the bitstrings are divided in so called chunks Abbreviations are used for all 1 or all 0 If a bitmap index is defined for a class automatically an extent bitmap index is maintained: It stores 1 if the Id exists, and 0 if not. ...
Oracle-DB-Security
... • Gives second level of information about specific operations to the database • Enables you to monitor data access based on content. ...
... • Gives second level of information about specific operations to the database • Enables you to monitor data access based on content. ...
Javier Villegas – DBA | MCP | MCTS
... SQL Server and Windows Version and Edition MAXDOP Cluster Database Mirroring/AlwaysOn Network Active Transactions Transactions per second Active connections Performance Monitor counters related to I/O using PowerShell I/O Latency ...
... SQL Server and Windows Version and Edition MAXDOP Cluster Database Mirroring/AlwaysOn Network Active Transactions Transactions per second Active connections Performance Monitor counters related to I/O using PowerShell I/O Latency ...
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"".