Completeness of Queries over Incomplete Databases
... respect possible constraints and adding further tuples. For a fixed formalism for representing incomplete databases, the most investigated questions are how the general query answers over incomplete databases can be represented, and how the set of possible answers and of certain answers can be compu ...
... respect possible constraints and adding further tuples. For a fixed formalism for representing incomplete databases, the most investigated questions are how the general query answers over incomplete databases can be represented, and how the set of possible answers and of certain answers can be compu ...
Programmatic SQL
... Embedded SQL statements SQL statements are embedded directly into the program source code and mixed with the host language statements. This approach allows users to write programs that access the database directly. A special precompiler modifies the source code to replace SQL statements with calls t ...
... Embedded SQL statements SQL statements are embedded directly into the program source code and mixed with the host language statements. This approach allows users to write programs that access the database directly. A special precompiler modifies the source code to replace SQL statements with calls t ...
Database Slicing on Relational Databases
... The program slicing of database-driven applications introduces new problems. The statements responsible for handling data in the database are often not present in the output of a slicing procedure; however, attempts have been made to extend program slicing with database support [1]. Our research que ...
... The program slicing of database-driven applications introduces new problems. The statements responsible for handling data in the database are often not present in the output of a slicing procedure; however, attempts have been made to extend program slicing with database support [1]. Our research que ...
SQL Tutorial - TutorialsPoint
... Copyright 2017 by Tutorials Point (I) Pvt. Ltd. All the content and graphics published in this e-book are the property of Tutorials Point (I) Pvt. Ltd. The user of this e-book is prohibited to reuse, retain, copy, distribute or republish any contents or a part of contents of this e-book in any man ...
... Copyright 2017 by Tutorials Point (I) Pvt. Ltd. All the content and graphics published in this e-book are the property of Tutorials Point (I) Pvt. Ltd. The user of this e-book is prohibited to reuse, retain, copy, distribute or republish any contents or a part of contents of this e-book in any man ...
Overview of JDBC and Pro* C
... • Incase you reside at an off-campus location, you will not be able to directly access http://omega.uta.edu using SSH • You will need to download and connect using a VPN client and then connect through SSH to omega. • The VPN client can be downloaded from http://www.uta.edu/oit/clientservices/networ ...
... • Incase you reside at an off-campus location, you will not be able to directly access http://omega.uta.edu using SSH • You will need to download and connect using a VPN client and then connect through SSH to omega. • The VPN client can be downloaded from http://www.uta.edu/oit/clientservices/networ ...
Transact-SQL
... Specifies that duplicate rows can appear in the result set. ALL is the default. DISTINCT Specifies that only unique rows can appear in the result set. Null values are considered equal for the purposes of the DISTINCT keyword. TOP (expression ) [ PERCENT ] [ WITH TIES ] Indicates that only a specifie ...
... Specifies that duplicate rows can appear in the result set. ALL is the default. DISTINCT Specifies that only unique rows can appear in the result set. Null values are considered equal for the purposes of the DISTINCT keyword. TOP (expression ) [ PERCENT ] [ WITH TIES ] Indicates that only a specifie ...
Erlang ODBC
... When you do application:start(odbc) the only thing that happens is that a supervisor process is started. For each call to the API function connect/2 a process is spawned and added as a child to the Erlang ODBC supervisor. The supervisors only tasks are to provide error-log reports, if a child proces ...
... When you do application:start(odbc) the only thing that happens is that a supervisor process is started. For each call to the API function connect/2 a process is spawned and added as a child to the Erlang ODBC supervisor. The supervisors only tasks are to provide error-log reports, if a child proces ...
sql – structured query language
... keys are called candidate keys. The candidate key constraint indicates that the table cannot contain two different rows with the same values under candidate key columns. • foreign keys (referential integrity): Many a times, it is necessary to include column names from one table in another table. Exa ...
... keys are called candidate keys. The candidate key constraint indicates that the table cannot contain two different rows with the same values under candidate key columns. • foreign keys (referential integrity): Many a times, it is necessary to include column names from one table in another table. Exa ...
MIS9eXLMC
... Describe the process of creating an intersection relation to remove a many-to-many relationship. © McGraw-Hill Companies, Inc., McGraw-Hill/Irwin ...
... Describe the process of creating an intersection relation to remove a many-to-many relationship. © McGraw-Hill Companies, Inc., McGraw-Hill/Irwin ...
handling inconsistency in databases and data integration systems
... database repairs. The database repairs are used as auxiliary concepts of the definition, but it does not mean that all the possible repairs need to be produce in order to obtain the consistent answers. Consistent answers can be sometimes obtained by posing a rewritten query on the database [Arenas e ...
... database repairs. The database repairs are used as auxiliary concepts of the definition, but it does not mean that all the possible repairs need to be produce in order to obtain the consistent answers. Consistent answers can be sometimes obtained by posing a rewritten query on the database [Arenas e ...
RDBMS LAB MANUAL Roll.No:1
... Report Writer: Report writer allows programmers to prepare innovative reports using data from the oracle structures like tables, views etc. It is the report writer tool that handles the reporting section of commercial application. Oracle Graphics: Some of the data can be better represented in th ...
... Report Writer: Report writer allows programmers to prepare innovative reports using data from the oracle structures like tables, views etc. It is the report writer tool that handles the reporting section of commercial application. Oracle Graphics: Some of the data can be better represented in th ...
Document
... Example: Suppose employees of a bank may have jobs (responsibilities) at multiple branches, with different jobs at different branches. Then there is a ternary relationship set between entity sets employee, job, and branch Relationships between more than two entity sets are rare. Most ...
... Example: Suppose employees of a bank may have jobs (responsibilities) at multiple branches, with different jobs at different branches. Then there is a ternary relationship set between entity sets employee, job, and branch Relationships between more than two entity sets are rare. Most ...
Database Management System
... generalized routines for some of the most common and frequently used tasks. A general routine by its nature tends to be somewhat less efficient than a routine designed for a specific problem. In the late fifties and early sixties, when the hardware costs were high, use of general routines was not ve ...
... generalized routines for some of the most common and frequently used tasks. A general routine by its nature tends to be somewhat less efficient than a routine designed for a specific problem. In the late fifties and early sixties, when the hardware costs were high, use of general routines was not ve ...
Chapter 5 Logical Database Design and the Relational Model
... methodology (if any) each uses for conceptual design: E-R diagrams, object diagrams, etc. Then determine how these models are transformed to logical data models (relational schema, object-oriented designs, etc.). To what extent are these activities automated through the use of CASE tools? If the tar ...
... methodology (if any) each uses for conceptual design: E-R diagrams, object diagrams, etc. Then determine how these models are transformed to logical data models (relational schema, object-oriented designs, etc.). To what extent are these activities automated through the use of CASE tools? If the tar ...
Guided Test Generation for Database Applications via Synthesized
... tion at runtime, making the analysis more precise [10]. DSE first starts with default or random inputs and executes the program concretely. Along the execution, DSE simultaneously performs symbolic execution to collect symbolic constraints on the inputs obtained from predicates in branch conditions. ...
... tion at runtime, making the analysis more precise [10]. DSE first starts with default or random inputs and executes the program concretely. Along the execution, DSE simultaneously performs symbolic execution to collect symbolic constraints on the inputs obtained from predicates in branch conditions. ...
PowerPoint slides
... – A deployment descriptor is a text file containing the create and grant statements to do on install_jar, and the drop and revoke statements to do on remove_jar. – A deployment descriptor is contained in a jar file with the classes it describes. – The install_jar procedure will implicitly perform th ...
... – A deployment descriptor is a text file containing the create and grant statements to do on install_jar, and the drop and revoke statements to do on remove_jar. – A deployment descriptor is contained in a jar file with the classes it describes. – The install_jar procedure will implicitly perform th ...
Working with Databases in PHP
... The returned result depends on the query If query is select, show, describe, explain – returns resource or false on error Otherwise true if successful, false on error ...
... The returned result depends on the query If query is select, show, describe, explain – returns resource or false on error Otherwise true if successful, false on error ...
Mapping RDF and RDF-Schema to the Entity Relationship Model
... given that RDF and relational models have differing architectures, there is a significant challenge in storing RDF in the relational model [9, 24]. In order to bridge this gap in architectures, in this paper we look at a mapping of RDF to a data modeling visualization paradigm, the Entity Relationsh ...
... given that RDF and relational models have differing architectures, there is a significant challenge in storing RDF in the relational model [9, 24]. In order to bridge this gap in architectures, in this paper we look at a mapping of RDF to a data modeling visualization paradigm, the Entity Relationsh ...