mapping variables
... In some cases, you need to filter data based on one or more conditions before writing it to targets. For example, if you have a human resources data warehouse containing information about current employees, you might want to filter out employees who are part-time and hourly. The mapping in Figure 18 ...
... In some cases, you need to filter data based on one or more conditions before writing it to targets. For example, if you have a human resources data warehouse containing information about current employees, you might want to filter out employees who are part-time and hourly. The mapping in Figure 18 ...
A FAD for data intensive applications - Knowledge and Data
... denotes the domain of tuples that map the string “a” to an element of ints, and the string “b” to an ordered tuple (with implicit integer field labels). This ordered tuple maps the integer 1 to an element of floats, and the integer 2 to an element of bools. Because of the similarity of ordered tuple ...
... denotes the domain of tuples that map the string “a” to an element of ints, and the string “b” to an ordered tuple (with implicit integer field labels). This ordered tuple maps the integer 1 to an element of floats, and the integer 2 to an element of bools. Because of the similarity of ordered tuple ...
DATABASE SCHEMA INTEGRATION PROCESS
... types. Using this tool, a designer specifies screen forms of transaction programs and, indirectly, creates an initial set of attributes and constraints. The main motivation of introducing form type is using a concept that is more familiar to end-users’ perception of information system, than it would ...
... types. Using this tool, a designer specifies screen forms of transaction programs and, indirectly, creates an initial set of attributes and constraints. The main motivation of introducing form type is using a concept that is more familiar to end-users’ perception of information system, than it would ...
Technologies for Connecting and Using Databases and Server
... Section 2 provides a brief history of the origins of current standardization techniques and object models discussed later in the paper. It is important to note that all three evolving object models, Java Beans, CORBA and OLE/ActiveX, emerged from very different design requirements and were originall ...
... Section 2 provides a brief history of the origins of current standardization techniques and object models discussed later in the paper. It is important to note that all three evolving object models, Java Beans, CORBA and OLE/ActiveX, emerged from very different design requirements and were originall ...
Data Warehouse Platforms
... Affordable: The proposed technology (hardware, software, services, required customer support) should allow for low total cost of ownership (TCO) over a multi-year period. Flexible: The platform should be able to provide optimal performance across the full range of normalized, star and hybrid data sc ...
... Affordable: The proposed technology (hardware, software, services, required customer support) should allow for low total cost of ownership (TCO) over a multi-year period. Flexible: The platform should be able to provide optimal performance across the full range of normalized, star and hybrid data sc ...
MANDATE: managing networks using database technology
... The sensor (or measurement) data is the raw information that is received from the network monitoring processes, and includes variables such as node queue lengths, retransmission rates, link status, and call statistics. The sensor data provides the primary input for three of the six OS1 network manag ...
... The sensor (or measurement) data is the raw information that is received from the network monitoring processes, and includes variables such as node queue lengths, retransmission rates, link status, and call statistics. The sensor data provides the primary input for three of the six OS1 network manag ...
TRIGGER trigger_name
... The previous trigger is used to keep track of all the transactions performed on the employee table. If any employee is deleted, a new row containing the details of this employee is stored in a table called xemployee. Similarly, if a new employee is inserted, a new row is created in another table cal ...
... The previous trigger is used to keep track of all the transactions performed on the employee table. If any employee is deleted, a new row containing the details of this employee is stored in a table called xemployee. Similarly, if a new employee is inserted, a new row is created in another table cal ...
chap 10 and normalization and chaps 14 and 13 and 16
... pass values to each other, via the database or other data store Durable: Once a transaction has “committed”, its updates are permanent ...
... pass values to each other, via the database or other data store Durable: Once a transaction has “committed”, its updates are permanent ...
Advanced Database Systems
... This chapter provides a general overview, but at the same time covers some aspect that we did not see in class. Check slides and read: Sec 8.2.1. Sec 8.2.2. Sec 8.3 Sec 8.4: Although not covered in class, this section gives a good intuition of “thinking in I/O’s” when considering simple database ope ...
... This chapter provides a general overview, but at the same time covers some aspect that we did not see in class. Check slides and read: Sec 8.2.1. Sec 8.2.2. Sec 8.3 Sec 8.4: Although not covered in class, this section gives a good intuition of “thinking in I/O’s” when considering simple database ope ...
Ch8(更新)
... Join–a relational operation that causes two or more tables with a common domain to be combined into a single table or view ...
... Join–a relational operation that causes two or more tables with a common domain to be combined into a single table or view ...
transaction
... • The need for object persistence did not disappear. • Some vendors, most notably Oracle, added features and functions to their relational database DBMS products to create object-relational databases. • DBMS products for storing object data are called object-oriented DBMSs (OODBMSs). KROENKE AND AUE ...
... • The need for object persistence did not disappear. • Some vendors, most notably Oracle, added features and functions to their relational database DBMS products to create object-relational databases. • DBMS products for storing object data are called object-oriented DBMSs (OODBMSs). KROENKE AND AUE ...
SUGI 27: Migrating a Publicly Available Web Database to a SAS(r
... WebCASPAR contains data from five NSF academic surveys and six NCES IPEDS surveys. Each of these surveys has one or more database files associated with it. The number of database files and their structure in the current system was primarily motivated by the goal to minimize the sparsity of the data. ...
... WebCASPAR contains data from five NSF academic surveys and six NCES IPEDS surveys. Each of these surveys has one or more database files associated with it. The number of database files and their structure in the current system was primarily motivated by the goal to minimize the sparsity of the data. ...
How to implement CDI ? M.Fichaut, V. Tosello
... exported. This request must return only one column which is the identifier of each entry and that will be used for sub-queries. SQL syntax must be adapted to your local database ...
... exported. This request must return only one column which is the identifier of each entry and that will be used for sub-queries. SQL syntax must be adapted to your local database ...
Dimension Build - dbmanagement.info
... 6. For the ProductTypeCode attribute, select the Id check box. 7. For the ProductType attribute, select the Caption check box. 8. For the ProductLineCode attribute, select the Parent check box. When you execute a build, DecisionStream creates links between a level and its parent by matching the Pare ...
... 6. For the ProductTypeCode attribute, select the Id check box. 7. For the ProductType attribute, select the Caption check box. 8. For the ProductLineCode attribute, select the Parent check box. When you execute a build, DecisionStream creates links between a level and its parent by matching the Pare ...
Paper
... (DAD). DAD is a file that allows an XML document to be mapped into relational data using either XML columns or XML Collections using the DTDs. A unique feature of DB2 is the ability to manage and index XML documents located within the file system, a single column, or spread across multiple tables ...
... (DAD). DAD is a file that allows an XML document to be mapped into relational data using either XML columns or XML Collections using the DTDs. A unique feature of DB2 is the ability to manage and index XML documents located within the file system, a single column, or spread across multiple tables ...
Note 2
... • In the iSeries architecture, the object type determines how the object can be used (which methods). – For example, it is impossible to corrupt a program object by modifying its code sequence data, as if it were a file. Because the system knows the object is a program, it will only allow valid prog ...
... • In the iSeries architecture, the object type determines how the object can be used (which methods). – For example, it is impossible to corrupt a program object by modifying its code sequence data, as if it were a file. Because the system knows the object is a program, it will only allow valid prog ...
Chapter 4: SQL
... Note: predicates in the having clause are applied after the formation of groups whereas predicates in the where clause are applied before forming groups A common syntax ...
... Note: predicates in the having clause are applied after the formation of groups whereas predicates in the where clause are applied before forming groups A common syntax ...
TransactionsAndRecovery
... All-or-nothing, no partial results. E.g. in a money transfer, debit one account, credit the other. Either both debiting and crediting operation succeed, or neither of them do. Successful completion is called Commit (Commit statement in SQL), unsuccessfull - Rollback (statement Rollback in SQL) ...
... All-or-nothing, no partial results. E.g. in a money transfer, debit one account, credit the other. Either both debiting and crediting operation succeed, or neither of them do. Successful completion is called Commit (Commit statement in SQL), unsuccessfull - Rollback (statement Rollback in SQL) ...
3 - Department of Information and Computing Sciences
... application programs. Usually purchased from a database company, a DBMS provides a single point of management and control over data resources, which can be critical to maintaining the integrity and security of the data. A database, a DBMS, and the application programs that use the data make up a dat ...
... application programs. Usually purchased from a database company, a DBMS provides a single point of management and control over data resources, which can be critical to maintaining the integrity and security of the data. A database, a DBMS, and the application programs that use the data make up a dat ...
4. Programming the Access application
... So far on the course we have created programs to manipulate Form and Report objects, often using the DoCmd object, which is an object whose methods correspond to most of the macro actions. The Modules collection contains the Module object which refers to a specific open module. In general you use th ...
... So far on the course we have created programs to manipulate Form and Report objects, often using the DoCmd object, which is an object whose methods correspond to most of the macro actions. The Modules collection contains the Module object which refers to a specific open module. In general you use th ...
IBM Netezza sample resume-2
... DB2 & Migration Consultant migrating Oracle Databases to DB2 9.7, DB2 10.1, DB2 10.5, DB2 pureScale for global industry leaders in telecom, insurance, banking automotive & FMCG domains at India, US and ASEAN Predominantly deal with database migration life cycle(Analysis of databases/applications ...
... DB2 & Migration Consultant migrating Oracle Databases to DB2 9.7, DB2 10.1, DB2 10.5, DB2 pureScale for global industry leaders in telecom, insurance, banking automotive & FMCG domains at India, US and ASEAN Predominantly deal with database migration life cycle(Analysis of databases/applications ...
Document
... In the case where we delete information in only some of the columns, null values, specified by –, are inserted. Delete customer Smith ...
... In the case where we delete information in only some of the columns, null values, specified by –, are inserted. Delete customer Smith ...
Chapter 6 - Cios Lab
... – specify conditions that constrain the desired operations (e.g. join, select, subtract) in the WHERE clause – words of wisdom • be aware that the same attributes may appear in different relations (tables) under different names • although SQL is case insensitive, you should be cautious when retrievi ...
... – specify conditions that constrain the desired operations (e.g. join, select, subtract) in the WHERE clause – words of wisdom • be aware that the same attributes may appear in different relations (tables) under different names • although SQL is case insensitive, you should be cautious when retrievi ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.