On the Use of Linda as a Framework for Distributed Database Systems
... as a series of actions carried out by a user/application. The actions defined in a transaction are either executed completely or not executed at all (this property is also termed as atomicity). A transaction transforms the database from one consistent state to another consistent state and it may sta ...
... as a series of actions carried out by a user/application. The actions defined in a transaction are either executed completely or not executed at all (this property is also termed as atomicity). A transaction transforms the database from one consistent state to another consistent state and it may sta ...
Accounting Information Systems: The Crossroads of Accounting and IT
... Objective: Q2.2 What is the role of the database in the enterprise? 15) How are hierarchical databases and network databases similar? How are they different? Answer: Hierarchical databases and network databases are similar in that they store data in records that are not grouped into database tables. ...
... Objective: Q2.2 What is the role of the database in the enterprise? 15) How are hierarchical databases and network databases similar? How are they different? Answer: Hierarchical databases and network databases are similar in that they store data in records that are not grouped into database tables. ...
SQL DOM: Compile Time Checking of Dynamic SQL Statements
... We knew that we would need to generate code dynamically for our solution to be viable. The first author was familiar with the classes in the .NET Framework that allow for the dynamic generation and compilation of code. As a result, sqldomgen was developed using C# [6] and the .NET Framework [1]. Our ...
... We knew that we would need to generate code dynamically for our solution to be viable. The first author was familiar with the classes in the .NET Framework that allow for the dynamic generation and compilation of code. As a result, sqldomgen was developed using C# [6] and the .NET Framework [1]. Our ...
Eliminating inner joins based on a contained predicate and a
... executable instructions that cause the computer to determine that the query does not access any attribute in the parent table other than the pk. The program further includes executable instructions that cause the computer to determine that the ...
... executable instructions that cause the computer to determine that the query does not access any attribute in the parent table other than the pk. The program further includes executable instructions that cause the computer to determine that the ...
r – s
... unique tuple of each possible relation r(R) by “possible r” we mean a relation r that could exist in the enterprise we are modeling. Example: {customer-name, customer-street} and {customer-name} are both superkeys of Customer, if no two customers can possibly have the same name. K is a candida ...
... unique tuple of each possible relation r(R) by “possible r” we mean a relation r that could exist in the enterprise we are modeling. Example: {customer-name, customer-street} and {customer-name} are both superkeys of Customer, if no two customers can possibly have the same name. K is a candida ...
Special Issue on Query Processing in Commercial Database Systems
... However, each product was tailored to its environment, often necessitating different implementations, especially of different execution strategies. The query optimizer for DB2 for MVS, which first appeared in 1983, largely followed that of System R but was totally rewritten to ensure robust error ha ...
... However, each product was tailored to its environment, often necessitating different implementations, especially of different execution strategies. The query optimizer for DB2 for MVS, which first appeared in 1983, largely followed that of System R but was totally rewritten to ensure robust error ha ...
File - You have to dream before your dreams can come
... Dynamic SQL allows an application to run SQL statements whose contents are not known until runtime. The statement is built up as a string by the application and is then passed to the server, in a similar way to the ADO interface in VB. Generally dynamic SQL is slower than static SQL so it should not ...
... Dynamic SQL allows an application to run SQL statements whose contents are not known until runtime. The statement is built up as a string by the application and is then passed to the server, in a similar way to the ADO interface in VB. Generally dynamic SQL is slower than static SQL so it should not ...
No Slide Title
... Lockable resources and lock escalation SQL Server can lock data at various levels, known as lockable resources. The ten levels form a hierarchy based on granularity, which refers to the amount of data the resource encompasses. A resource that encompasses more data than another resource is less ...
... Lockable resources and lock escalation SQL Server can lock data at various levels, known as lockable resources. The ten levels form a hierarchy based on granularity, which refers to the amount of data the resource encompasses. A resource that encompasses more data than another resource is less ...
Optimization_Lecture_7
... Selection using Hash Index • For a general selection query: R.attr op value (R), hash index is best if R.attr is equality (=). It is not good for not equality (e.g. <, >, <>). • We retrieve the index page that contain the rids (record identifiers) of the qualifying tuples. • Then the pages that co ...
... Selection using Hash Index • For a general selection query: R.attr op value (R), hash index is best if R.attr is equality (=). It is not good for not equality (e.g. <, >, <>). • We retrieve the index page that contain the rids (record identifiers) of the qualifying tuples. • Then the pages that co ...
DBMS - Department of Higher Education
... Separation of data from processing, either so that changes in the size or format of the data elements require no change in the computer programs processing them or so that these changes can be made automatically by the database management system. These are the techniques that allow data to be change ...
... Separation of data from processing, either so that changes in the size or format of the data elements require no change in the computer programs processing them or so that these changes can be made automatically by the database management system. These are the techniques that allow data to be change ...
DBC-e03-Access-Workbench-Section-03-PP
... click the column name and drag it to a cell in the Field: row in the lower window pane ...
... click the column name and drag it to a cell in the Field: row in the lower window pane ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... forms [2].They provide visual interfaces for developers to create or customize query forms. This system allows end-users to customize the existing query form at runtime. It provides a mechanism to let a user existing form to express the desired query. The modifications are specified through filling for ...
... forms [2].They provide visual interfaces for developers to create or customize query forms. This system allows end-users to customize the existing query form at runtime. It provides a mechanism to let a user existing form to express the desired query. The modifications are specified through filling for ...
Accounting Information Systems: The Crossroads of Accounting and
... Objective: Q2.2 What is the role of the database in the enterprise? 15) How are hierarchical databases and network databases similar? How are they different? Answer: Hierarchical databases and network databases are similar in that they store data in records that are not grouped into database tables. ...
... Objective: Q2.2 What is the role of the database in the enterprise? 15) How are hierarchical databases and network databases similar? How are they different? Answer: Hierarchical databases and network databases are similar in that they store data in records that are not grouped into database tables. ...
WINFS_FinPPT
... Integrated storage - Helps to reuse data. E.g.- for businesses, by allowing it to automatically aggregate data from different departments. Full text search - Works with items fields. Advanced search - Custom made such queries such as to find “all persons whom ...
... Integrated storage - Helps to reuse data. E.g.- for businesses, by allowing it to automatically aggregate data from different departments. Full text search - Works with items fields. Advanced search - Custom made such queries such as to find “all persons whom ...
Biacore 8K Database Installation and Management Guide
... Database installation options Biacore 8K software supports the use of different database servers, different databases and different types of users. Several instruments can store run data in the same database. Moving objects between databases is also supported to some extent, using import-export func ...
... Database installation options Biacore 8K software supports the use of different database servers, different databases and different types of users. Several instruments can store run data in the same database. Moving objects between databases is also supported to some extent, using import-export func ...
Oracle Database Vault – DBA Best Practices
... • DBA needs to be granted EXP_FULL_DATABASE / IMP_FULL_DATABASE roles • For realm-protected data, more authorization is needed: – Security Administrator can give authorization on a specific database object, a whole schema, or on the entire database – To export / import the whole database, user needs ...
... • DBA needs to be granted EXP_FULL_DATABASE / IMP_FULL_DATABASE roles • For realm-protected data, more authorization is needed: – Security Administrator can give authorization on a specific database object, a whole schema, or on the entire database – To export / import the whole database, user needs ...
JDBC - SoftUni
... The JDBC API provides the following interfaces and classes: DriverManager – This class manages a list of database drivers. Driver – This interface handles the communications with the database server. Connection – The connection object represents communication context. Statement – Objects u ...
... The JDBC API provides the following interfaces and classes: DriverManager – This class manages a list of database drivers. Driver – This interface handles the communications with the database server. Connection – The connection object represents communication context. Statement – Objects u ...
Understanding and Selecting a Database Assessment
... assessment products work,often assuming that databases are no different. While this is conceptually true, in practice general assessment techniques translate poorly to the database world. Assessing databases is a very different challenge than OS and network level scans. This is due partially to the ...
... assessment products work,often assuming that databases are no different. While this is conceptually true, in practice general assessment techniques translate poorly to the database world. Assessing databases is a very different challenge than OS and network level scans. This is due partially to the ...
Normalization
... Update: Suppose the course name (C_Name) for CIS 564 got changed to Database Management. How many times do you have to make this change in the COURSE table in its current form? COURSE# ...
... Update: Suppose the course name (C_Name) for CIS 564 got changed to Database Management. How many times do you have to make this change in the COURSE table in its current form? COURSE# ...
transformation - Program
... Goal: to define a common formalism to specify data structures in different data models or how to tidy the data model Babel tower? ...
... Goal: to define a common formalism to specify data structures in different data models or how to tidy the data model Babel tower? ...