BCS THE CHARTERED INSTITUTE FOR IT ADVANCED DATABASE MANAGEMENT SYSTEMS EXAMINERS REPORT
... Marked holistically but good responses will cover locking as a pessimistic mechanism, row-level locking versus table-level locking, shared (read) locks versus exclusive (write) locks, the need for tracking all these locked data resources via a locking schedule and lock table, the impact on performan ...
... Marked holistically but good responses will cover locking as a pessimistic mechanism, row-level locking versus table-level locking, shared (read) locks versus exclusive (write) locks, the need for tracking all these locked data resources via a locking schedule and lock table, the impact on performan ...
No Slide Title - Microsoft Research
... • DBMS for managing scientific applications • CASE support by DBMS • Optimisation of queries over complex object hierarchies • Active DBMS – whatever that means Contra • Processing general recursive queries • Hardware sorters • Hardware filters • Anything related to concurrency control • Object-orie ...
... • DBMS for managing scientific applications • CASE support by DBMS • Optimisation of queries over complex object hierarchies • Active DBMS – whatever that means Contra • Processing general recursive queries • Hardware sorters • Hardware filters • Anything related to concurrency control • Object-orie ...
DB Audit White Paper - SoftTree Technologies, Inc.
... are set to track a small subset of all the events required to meet corporate security policy due to a fear of creating performance problems or disk storage overhead. Logged audit events are rarely reviewed because the data are cryptic and too voluminous to be useful. There is no easy-to-use-reportin ...
... are set to track a small subset of all the events required to meet corporate security policy due to a fear of creating performance problems or disk storage overhead. Logged audit events are rarely reviewed because the data are cryptic and too voluminous to be useful. There is no easy-to-use-reportin ...
Recovery
... Old object version is kept, new version is created E.g., in PostgreSQL Vacuum procedure that from time to time deletes ...
... Old object version is kept, new version is created E.g., in PostgreSQL Vacuum procedure that from time to time deletes ...
DBMS - University of Virginia
... Idea: If an action of Ti (say, writing X) affects Tj (which perhaps reads X), one of them, say Ti, will obtain the lock on X first and Tj is forced to wait until Ti completes; this effectively orders the transactions. What if Tj already has a lock on Y and Ti later requests a lock on Y? What is it c ...
... Idea: If an action of Ti (say, writing X) affects Tj (which perhaps reads X), one of them, say Ti, will obtain the lock on X first and Tj is forced to wait until Ti completes; this effectively orders the transactions. What if Tj already has a lock on Y and Ti later requests a lock on Y? What is it c ...
Automating Data Transfer from SAS to Microsoft Access
... OOBe: This technique is used for the data transfer. oose, or Qpen Qata !ase £onnectivity, was developed by Micro- . soft and allows ODBC-compliant software packages to exchange Information. Sy using the oose API, applications can access data stored in a variety of personal computer, minicomputer, an ...
... OOBe: This technique is used for the data transfer. oose, or Qpen Qata !ase £onnectivity, was developed by Micro- . soft and allows ODBC-compliant software packages to exchange Information. Sy using the oose API, applications can access data stored in a variety of personal computer, minicomputer, an ...
What is a database?
... users in the Sales department of a business can differ from those developed for the Marketing department, even though the underlying database is the same. ...
... users in the Sales department of a business can differ from those developed for the Marketing department, even though the underlying database is the same. ...
Data persistence
... Full object model exists only on disk (not in memory) Application dynamically loads a subset of the object model from disk as needed to perform an operation. Incremental changes to the partial in-memory object model are immediately saved to disk The partial in-memory object model is discarded when t ...
... Full object model exists only on disk (not in memory) Application dynamically loads a subset of the object model from disk as needed to perform an operation. Incremental changes to the partial in-memory object model are immediately saved to disk The partial in-memory object model is discarded when t ...
Free Braindump2go Microsoft 70-467 VCE Exam Questions and
... The company's data warehouse initially contained less than 100 MB and 100 million rows of data from only one data source. It now contains more than 10 TB and 10 billion rows of data, in 25 tables, from 12 data sources. The largest table in the data warehouse, the factOrders table, contains 5 TB of d ...
... The company's data warehouse initially contained less than 100 MB and 100 million rows of data from only one data source. It now contains more than 10 TB and 10 billion rows of data, in 25 tables, from 12 data sources. The largest table in the data warehouse, the factOrders table, contains 5 TB of d ...
October 10, 2015
... Upgrading this server to the latest SQL Database Update is permanent and irreversible. To confirm the upgrade, type the name of the server ‘pluto' below. The duration of upgrade ranges from several hours to days depending on the size, edition and number of databases in the server. During this time a ...
... Upgrading this server to the latest SQL Database Update is permanent and irreversible. To confirm the upgrade, type the name of the server ‘pluto' below. The duration of upgrade ranges from several hours to days depending on the size, edition and number of databases in the server. During this time a ...
Lecture Outline 2 - Applied Computer Science
... to tap into o minimizes redundancy and provides retrieval efficiency o can have one database for some subject area: student database, employee database how do we structure the data [on disk] for a database? Different people need different combinations [views] of data; yet the database must satisfy a ...
... to tap into o minimizes redundancy and provides retrieval efficiency o can have one database for some subject area: student database, employee database how do we structure the data [on disk] for a database? Different people need different combinations [views] of data; yet the database must satisfy a ...
Reading Event Data Recorders
... who have been revoked, suspended, canceled or denied or who have been convicted of serious traffic-related offenses The NDR system is used by: ...
... who have been revoked, suspended, canceled or denied or who have been convicted of serious traffic-related offenses The NDR system is used by: ...
Database vs Data Warehouse: A Comparative
... data warehouse. Because I’m a visual person (and a database guy who likes rows and columns), I’ll compare and contrast the two in table format. Database ...
... data warehouse. Because I’m a visual person (and a database guy who likes rows and columns), I’ll compare and contrast the two in table format. Database ...
F5 and Oracle Database Solution Guide | F5 Networks
... database servers. With health monitoring centralized on BIG-IP LTM, application servers are offloaded, freeing valuable resources. Moreover, even though application servers might have different software, versions, and behavior in terms of timeouts and connectivity, BIG-IP LTM provides a reliable con ...
... database servers. With health monitoring centralized on BIG-IP LTM, application servers are offloaded, freeing valuable resources. Moreover, even though application servers might have different software, versions, and behavior in terms of timeouts and connectivity, BIG-IP LTM provides a reliable con ...
Building CASE Tools Data Base Using Microsoft SQL
... SQL-Server Database classes • The program must open the connection to the data source before executing one or more SqlCommands and close the connection once no further access to the data source is required. • Class DataTable (namespace System.Data) represents a table of data. • A DataTable contains ...
... SQL-Server Database classes • The program must open the connection to the data source before executing one or more SqlCommands and close the connection once no further access to the data source is required. • Class DataTable (namespace System.Data) represents a table of data. • A DataTable contains ...
Lecture Notes
... • Structured Query Language (SQL) – The language in which we express actions to be performed on a relational database. – Standardized to allow portability across different products. • SQL92 (aka SQL2) is the latest standard. ...
... • Structured Query Language (SQL) – The language in which we express actions to be performed on a relational database. – Standardized to allow portability across different products. • SQL92 (aka SQL2) is the latest standard. ...
Introduction to Database Systems
... – Keep the CPU working on several programs concurrently. • Interleaving actions of different programs: trouble! – e.g., account-transfer & print statement at same time • DBMS ensures such problems don’t arise. – Users/programmers can pretend they are using a single-user system. (called “Isolation”) ...
... – Keep the CPU working on several programs concurrently. • Interleaving actions of different programs: trouble! – e.g., account-transfer & print statement at same time • DBMS ensures such problems don’t arise. – Users/programmers can pretend they are using a single-user system. (called “Isolation”) ...
DataReader
... Wizard and data bound fields are useful for the rapid development of forms and displays based on content of a database They are not useful for most transaction processing systems because of inflexibility Use of code to control database access is more powerful because the programmer can manipulate da ...
... Wizard and data bound fields are useful for the rapid development of forms and displays based on content of a database They are not useful for most transaction processing systems because of inflexibility Use of code to control database access is more powerful because the programmer can manipulate da ...
IMS1907 Database Systems
... – unit-to-function – information system-to-data entity – supporting function-to-data entity – information system-to-objective Identifying orphans, missing entities, missing functions, unassigned functions, unassigned units, necessary systems, prioritisation of development Monash University 2004 ...
... – unit-to-function – information system-to-data entity – supporting function-to-data entity – information system-to-objective Identifying orphans, missing entities, missing functions, unassigned functions, unassigned units, necessary systems, prioritisation of development Monash University 2004 ...
Database performance tuning
... Query is broken down into smaller units Original SQL query is transformed into slightly different version of the original SQL code which is fully equivalent and more efficient Query optimizer: Analyzes SQL query and finds most efficient way to access data Access plans: DBMS-specific and transl ...
... Query is broken down into smaller units Original SQL query is transformed into slightly different version of the original SQL code which is fully equivalent and more efficient Query optimizer: Analyzes SQL query and finds most efficient way to access data Access plans: DBMS-specific and transl ...
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"".