Introduction to Transaction Processing Concepts and Theory
... EXEC SQL WHENEVER SQLERROR GOTO UNDO; EXEC SQL SET TRANSACTION ...
... EXEC SQL WHENEVER SQLERROR GOTO UNDO; EXEC SQL SET TRANSACTION ...
Relational Modeling
... May be worth 30 GB overhead to keep sales header records if this is a common query structure because both ease-of-use and performance will be enhanced (at some cost in storage)? ...
... May be worth 30 GB overhead to keep sales header records if this is a common query structure because both ease-of-use and performance will be enhanced (at some cost in storage)? ...
Relational Modeling
... May be worth 30 GB overhead to keep sales header records if this is a common query structure because both ease-of-use and performance will be enhanced (at some cost in storage)? ...
... May be worth 30 GB overhead to keep sales header records if this is a common query structure because both ease-of-use and performance will be enhanced (at some cost in storage)? ...
Slide: Temporal Databases
... In our temporal data model, timepoints will have only a single granularity, which is at the smallest level of interest in the DB applications. EX: If granularity is one day, then we can say that the timepoints are all values of type DATE, and type DATE is the point type of intervals. When we consi ...
... In our temporal data model, timepoints will have only a single granularity, which is at the smallest level of interest in the DB applications. EX: If granularity is one day, then we can say that the timepoints are all values of type DATE, and type DATE is the point type of intervals. When we consi ...
SQL Basics for RPG Developers
... system • We pass in some parameters, query the F4211 and F42119 • Process the data • Return the Daily Bookings ...
... system • We pass in some parameters, query the F4211 and F42119 • Process the data • Return the Daily Bookings ...
Creating and Deleting Many User Roles for the MDM Hub
... Creating Roles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ...
... Creating Roles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ...
Summer 2015, Franck Pachot. The arrival of the
... We are so used of the previous behaviour that we often find it normal to only put the datafile offline when there is no need to stop the whole instance. But is it the right choice to let the instance run when it is impossible to checkpoint all the datafiles? Why not just stop the instance, in the sa ...
... We are so used of the previous behaviour that we often find it normal to only put the datafile offline when there is no need to stop the whole instance. But is it the right choice to let the instance run when it is impossible to checkpoint all the datafiles? Why not just stop the instance, in the sa ...
Hardware Acceleration in Commercial Databases
... server-based components called data cartridges by Oracle [7] and Data Blades by DB2 [6]. In this paper, we use a data cartridge to integrate the hardware filter with the Oracle database engine. Through data cartridges, Oracle allows users to capture the business logic and the processes associated wi ...
... server-based components called data cartridges by Oracle [7] and Data Blades by DB2 [6]. In this paper, we use a data cartridge to integrate the hardware filter with the Oracle database engine. Through data cartridges, Oracle allows users to capture the business logic and the processes associated wi ...
Proceedings of - Intelligent Systems Center
... Xing et al., [2,3] proposed an optimistic concurrency control algorithm called sequential order dynamic adjustment (SODA) over centralized and distributed mobile ad hoc network databases. In SODA a history of committed transactions is maintained to validate committing transactions. Further, the list ...
... Xing et al., [2,3] proposed an optimistic concurrency control algorithm called sequential order dynamic adjustment (SODA) over centralized and distributed mobile ad hoc network databases. In SODA a history of committed transactions is maintained to validate committing transactions. Further, the list ...
JDBC - WordPress.com
... JDBC batch processing • Batch processing allows you to group related SQL statements into a batch and submit them with one call to the database. • The addBatch() is used to add individual statements to the batch. • The executeBatch() is used to start the execution of all the statements grouped toget ...
... JDBC batch processing • Batch processing allows you to group related SQL statements into a batch and submit them with one call to the database. • The addBatch() is used to add individual statements to the batch. • The executeBatch() is used to start the execution of all the statements grouped toget ...
WICS TP Chapter 1 - Microsoft Research
... All subsequent operations will be covered by the transaction. Eventually, the application program will call COMMIT_WORK(), if a new consistent state has been reached. This makes sure the new state becomes durable. If the application program cannot complete properly (violation of consistency constrai ...
... All subsequent operations will be covered by the transaction. Eventually, the application program will call COMMIT_WORK(), if a new consistent state has been reached. This makes sure the new state becomes durable. If the application program cannot complete properly (violation of consistency constrai ...
Expression and Enforcement of Dynamic Integrity Constraints
... Note that (4) only requests that the tuple a(b,c,d) is not deleted from the database using a retract command. However, it does not disallow any other changes; e.g. it could modified or manipulated by other operations. (5) could be read as the minimum condition to remove a tuple from the database: it ...
... Note that (4) only requests that the tuple a(b,c,d) is not deleted from the database using a retract command. However, it does not disallow any other changes; e.g. it could modified or manipulated by other operations. (5) could be read as the minimum condition to remove a tuple from the database: it ...
Chapter12 Access databases
... • DataGridView control allows data to be edited directly within the control to update the database • Two event procedures are automatically created in Code Editor window when a table or field object is dragged to the form ...
... • DataGridView control allows data to be edited directly within the control to update the database • Two event procedures are automatically created in Code Editor window when a table or field object is dragged to the form ...
SQLite Database
... Every application has its own sandbox and cannot access data from other applications. If access to functions not provided by its own sandbox is required, the application must explicitly declare permission upfront before installation.Android provides an interface called ContentProvider to act as a br ...
... Every application has its own sandbox and cannot access data from other applications. If access to functions not provided by its own sandbox is required, the application must explicitly declare permission upfront before installation.Android provides an interface called ContentProvider to act as a br ...
Optimal Chapter 4
... How can this happen? • Names can be written different ways in different databases that are being merged. • Ronald Drozdenko • R. Drozdenko ...
... How can this happen? • Names can be written different ways in different databases that are being merged. • Ronald Drozdenko • R. Drozdenko ...
Chapter 13 - Emunix Documentation on the Web
... Because dataset data are disconnected from regular database, only optimistic locking can be used when updating the regular database with the dataset In the case of conflict, either the dataset must be reprocessed or the data change must be forced onto the database, causing the lost update proble ...
... Because dataset data are disconnected from regular database, only optimistic locking can be used when updating the regular database with the dataset In the case of conflict, either the dataset must be reprocessed or the data change must be forced onto the database, causing the lost update proble ...
No Slide Title - Department of Computer Science
... IMS from IBM, Hierarchical Data Model IMS DB/DC, Network Model and communication SABRE, multi-user access with network ...
... IMS from IBM, Hierarchical Data Model IMS DB/DC, Network Model and communication SABRE, multi-user access with network ...
Proceedings of USITS ’03: 4th USENIX Symposium on Internet Technologies and Systems
... all incoming requests pass. We require that transactions specify the tables that they access at the beginning of the transaction. Using that information, a conflictaware scheduler relies on a sequence-numbering scheme to implement 1-copy serializability, and directs incoming queries in such a way th ...
... all incoming requests pass. We require that transactions specify the tables that they access at the beginning of the transaction. Using that information, a conflictaware scheduler relies on a sequence-numbering scheme to implement 1-copy serializability, and directs incoming queries in such a way th ...
Tracking Specification Requirements Evolution: Database Approach
... Note that in the first case there is no need in field containing list of versions where element was excluded from the specification – it is quite reasonable to suggest that if an element was not included, then it was excluded. Versions to be stored in fields in both methods are not obligatory specif ...
... Note that in the first case there is no need in field containing list of versions where element was excluded from the specification – it is quite reasonable to suggest that if an element was not included, then it was excluded. Versions to be stored in fields in both methods are not obligatory specif ...
Document
... • Serial—to read serial and sequential files • Index-sequential—using indexes to find records in a sequential file and improve access time • Direct—using relative or hashed addressing to move directly to the required record in the file ...
... • Serial—to read serial and sequential files • Index-sequential—using indexes to find records in a sequential file and improve access time • Direct—using relative or hashed addressing to move directly to the required record in the file ...
幻灯片 1 - 这是一个测试
... The model is easy for users to understand. Primary keys represent a dimension. Nonforeign key columns are values. Facts are usually highly normalized. Dimensions are completely denormalized. Fast response to queries is provided. Performance is improved by reducing table joins. End us ...
... The model is easy for users to understand. Primary keys represent a dimension. Nonforeign key columns are values. Facts are usually highly normalized. Dimensions are completely denormalized. Fast response to queries is provided. Performance is improved by reducing table joins. End us ...
Introduction to Databases Lecture 1 Chapters 1 - 2 Robb T. Koether
... At the very same time, Bob, another airline employee, goes online to change the flight number from #123 to #456. Alice selects the first 50 names of passengers on flight #123. At that moment, the flight number is changed to #456. The last 50 names are not selected because the flight number was no lo ...
... At the very same time, Bob, another airline employee, goes online to change the flight number from #123 to #456. Alice selects the first 50 names of passengers on flight #123. At that moment, the flight number is changed to #456. The last 50 names are not selected because the flight number was no lo ...