On-Line Analytical Processing (OLAP) What is OLAP? OLAP is more
... Recall, that a dimension represents descriptive categories of data such as time or location. In other words, dimensions are broad groupings of descriptive data about a major aspect of a business, such as dates, markets, or products. The value of OLAP in reporting data is having levels within the dim ...
... Recall, that a dimension represents descriptive categories of data such as time or location. In other words, dimensions are broad groupings of descriptive data about a major aspect of a business, such as dates, markets, or products. The value of OLAP in reporting data is having levels within the dim ...
An Architecture for Homogenizing Federated Databases
... consist of a large collection of programs and data, usually written in COBOL, and use a legacy database service, for example, IBM’s IMS. They are important assets and are critical for the day-to-day operation of an organization. Today, these legacy information systems pose one of the most difficult ...
... consist of a large collection of programs and data, usually written in COBOL, and use a legacy database service, for example, IBM’s IMS. They are important assets and are critical for the day-to-day operation of an organization. Today, these legacy information systems pose one of the most difficult ...
DB2 and the SAS System - Information Delivery for the 1990s
... In order for a database language such as DB2 to be of greatest use, it is important that it be provided with a powerful easy-to-use data processing language and interface. The interface can use existing DB2 access methods, but the processing language can range from 2GL assembler to 3GLs like PUI to ...
... In order for a database language such as DB2 to be of greatest use, it is important that it be provided with a powerful easy-to-use data processing language and interface. The interface can use existing DB2 access methods, but the processing language can range from 2GL assembler to 3GLs like PUI to ...
ISMB2006-Similarity4
... • MinMax similarity is a generalization of Tanimoto which uses the counts. • MinMax can work better than Tanimoto. ...
... • MinMax similarity is a generalization of Tanimoto which uses the counts. • MinMax can work better than Tanimoto. ...
Document
... • Issue: Data structure mismatch – API talks objects – adapters hide and deal with conversion ...
... • Issue: Data structure mismatch – API talks objects – adapters hide and deal with conversion ...
Document
... A Hypothetical Integrity Language (cont.) • When a CREATE INTEGRITY RULE statement is executed: (1) the system check if the current database state satisfied the specified constraint, YES => accept the rule NO => reject the rule (2) the accepted rule is saved in system catalog, (3) DBMS monitor all ...
... A Hypothetical Integrity Language (cont.) • When a CREATE INTEGRITY RULE statement is executed: (1) the system check if the current database state satisfied the specified constraint, YES => accept the rule NO => reject the rule (2) the accepted rule is saved in system catalog, (3) DBMS monitor all ...
A, F - COW :: Ceng
... • Each normal form is a set of conditions on a schema that guarantees certain properties (relating to redundancy and update anomalies) • First normal form (1NF) is the same as the definition of relational model (relations = sets of tuples; each tuple = sequence of atomic values) • Second normal form ...
... • Each normal form is a set of conditions on a schema that guarantees certain properties (relating to redundancy and update anomalies) • First normal form (1NF) is the same as the definition of relational model (relations = sets of tuples; each tuple = sequence of atomic values) • Second normal form ...
Connecting Business Objects to Relational Databases
... objects consist of both data and behavior and often have inheritance while relational databases consist of tables, relations and basic predicate calculus functions to return desired values. One way to avoid the impedance mismatch between objects and relations is to use an object-oriented database. H ...
... objects consist of both data and behavior and often have inheritance while relational databases consist of tables, relations and basic predicate calculus functions to return desired values. One way to avoid the impedance mismatch between objects and relations is to use an object-oriented database. H ...
I 257: Database Management - Courses
... MySQL Data Types • The final string type (for this version) is a SET • A SET is a string object that can have zero or more values, each of which must be chosen from a list of allowed values specified when the table is created. • SET column values that consist of multiple set members are specified w ...
... MySQL Data Types • The final string type (for this version) is a SET • A SET is a string object that can have zero or more values, each of which must be chosen from a list of allowed values specified when the table is created. • SET column values that consist of multiple set members are specified w ...
발표자료
... • WHERE clause can be seen as a graph pattern • Query engine finds all matches for the pattern in the data, and returns all the values that the question word matched • Query can specify a graph pattern with more than one triples • Since the variable ?what appears in both triples, the graph pattern i ...
... • WHERE clause can be seen as a graph pattern • Query engine finds all matches for the pattern in the data, and returns all the values that the question word matched • Query can specify a graph pattern with more than one triples • Since the variable ?what appears in both triples, the graph pattern i ...
transaction
... A policy in which only one transaction can execute at a time generates serial schedules, but provides a poor degree of concurrency. Concurrency-control schemes tradeoff between the amount of concurrency they allow and the amount of overhead that they incur. Some schemes allow only conflict-serializa ...
... A policy in which only one transaction can execute at a time generates serial schedules, but provides a poor degree of concurrency. Concurrency-control schemes tradeoff between the amount of concurrency they allow and the amount of overhead that they incur. Some schemes allow only conflict-serializa ...
On Line Analytical - Ohio State Computer Science and Engineering
... OLAP Rules, cont. 4. Consistent Reporting Performance There should not be significant degradation in performance with large numbers of dimensions or large quantities of data. 5. Client-Server Architecture Since much of the data is on mainframes, and the users work on PCs, the OLAP tool must be able ...
... OLAP Rules, cont. 4. Consistent Reporting Performance There should not be significant degradation in performance with large numbers of dimensions or large quantities of data. 5. Client-Server Architecture Since much of the data is on mainframes, and the users work on PCs, the OLAP tool must be able ...
DBAI_les01
... • System Global Area (SGA): Allocated at instance startup, and is a fundamental component of an Oracle Instance • Program Global Area (PGA): Allocated when the server process is started ...
... • System Global Area (SGA): Allocated at instance startup, and is a fundamental component of an Oracle Instance • Program Global Area (PGA): Allocated when the server process is started ...
MySQL: Part II - Oxford University ICT Forum
... • Choice of tools to generate the UI: this choice should not affect the user; • Each tool has (subtly) different emphasis; • Clients can interact directly with MySQL for speed / memory benefits. ...
... • Choice of tools to generate the UI: this choice should not affect the user; • Each tool has (subtly) different emphasis; • Clients can interact directly with MySQL for speed / memory benefits. ...
RTS Inc.
... • Can create several temporary tablespaces and assign them to a tablespace group • Can assign the tablespace group as users temporary tablespace • Parallel Query and Parallel execution slaves can spread temporary segments on different ...
... • Can create several temporary tablespaces and assign them to a tablespace group • Can assign the tablespace group as users temporary tablespace • Parallel Query and Parallel execution slaves can spread temporary segments on different ...
Building Real-Time Data Pipelines
... In the early days of databases, systems were designed to focus on each individual transaction and treat it as an atomic unit (for exam‐ ple, the debit and credit for accounting, the movement of physical inventory, or the addition of a new employee to payroll). These criti‐ cal transactions move the ...
... In the early days of databases, systems were designed to focus on each individual transaction and treat it as an atomic unit (for exam‐ ple, the debit and credit for accounting, the movement of physical inventory, or the addition of a new employee to payroll). These criti‐ cal transactions move the ...
sql_i
... DISTINCT returns only those rows that are unique ALL returns all qualified rows, by default all rows are returned by a SELECT query SELECT [DISTINCT | ALL] select_list Distinct combination of items DISTINCT treats each null in a particular column as a duplicate of all other null values in that colum ...
... DISTINCT returns only those rows that are unique ALL returns all qualified rows, by default all rows are returned by a SELECT query SELECT [DISTINCT | ALL] select_list Distinct combination of items DISTINCT treats each null in a particular column as a duplicate of all other null values in that colum ...
Decision Patient Therapy - Tutorial
... We provided a detailed description of how to create the proper executable decision with OpenRules® using only Excel. The patient and visit information was defined in Excel data tables. This decision is available as a part of the standard OpenRules® installation as the project “DecisionPatientTherapy ...
... We provided a detailed description of how to create the proper executable decision with OpenRules® using only Excel. The patient and visit information was defined in Excel data tables. This decision is available as a part of the standard OpenRules® installation as the project “DecisionPatientTherapy ...
Spatial Query Languages - Spatial Database Group
... Other GIS software can interact with DBMS using SQL • using open database connectivity (ODBC) or other protocols In fact, many software use SQL to manage data in back-end DBMS And a vast majority of SQL queries are generated by other software Although we will be writing SQL queries manually! ...
... Other GIS software can interact with DBMS using SQL • using open database connectivity (ODBC) or other protocols In fact, many software use SQL to manage data in back-end DBMS And a vast majority of SQL queries are generated by other software Although we will be writing SQL queries manually! ...
PointBase System Guide Version 4.8
... PointBase appends a version number to the end of every PointBase jar file. A version number is two digits. PointBase Embedded contains the pbembedded48ev.jar file. PointBase Embedded is a database that accepts multiple concurrent connections from a “single” client application. It is designed to run ...
... PointBase appends a version number to the end of every PointBase jar file. A version number is two digits. PointBase Embedded contains the pbembedded48ev.jar file. PointBase Embedded is a database that accepts multiple concurrent connections from a “single” client application. It is designed to run ...
powerpoint slides
... Other GIS software can interact with DBMS using SQL • using open database connectivity (ODBC) or other protocols In fact, many software use SQL to manage data in back-end DBMS And a vast majority of SQL queries are generated by other software Although we will be writing SQL queries manually! ...
... Other GIS software can interact with DBMS using SQL • using open database connectivity (ODBC) or other protocols In fact, many software use SQL to manage data in back-end DBMS And a vast majority of SQL queries are generated by other software Although we will be writing SQL queries manually! ...
ADO.DDD
... Controls the behavior of the Connection object after CommitTrans or RollbackTrans has been called Sets the length of time that queries on this connection can run before timing out Specifies how to connect to your database Sets the length of time that ADO will wait before an attempt to connect to you ...
... Controls the behavior of the Connection object after CommitTrans or RollbackTrans has been called Sets the length of time that queries on this connection can run before timing out Specifies how to connect to your database Sets the length of time that ADO will wait before an attempt to connect to you ...
modeling active database-driven cartography within
... cartographic products constantly up to date, i.e., each time a map is produced the most current information is used. This technology also allows for changes to the cartographic standard to be instantly applied to all products that use the standard. In essence, we are exploring making the leap from d ...
... cartographic products constantly up to date, i.e., each time a map is produced the most current information is used. This technology also allows for changes to the cartographic standard to be instantly applied to all products that use the standard. In essence, we are exploring making the leap from d ...
Introduction to Database System
... “Query” the relations: retrieve tuples that fulfill certain criteria ...
... “Query” the relations: retrieve tuples that fulfill certain criteria ...