EIN 4905/ESI 6912 Decision Support Systems Excel
... To display an explorer browse window, we use the GetOpenFilename method associated with the Application object. – This method presents the user with a browse window and allows them to select a file. – The name of the file is returned as a string value. ...
... To display an explorer browse window, we use the GetOpenFilename method associated with the Application object. – This method presents the user with a browse window and allows them to select a file. – The name of the file is returned as a string value. ...
PROC SQL: A Powerful Tool to Improve Your Data Quality
... of the individual fields in your table doesn't mean that you have completed validating the table. You know by this point in your validation that what has been entered into a specific field meets the validation rules that you have applied to that field. What you don't know is whether the combination ...
... of the individual fields in your table doesn't mean that you have completed validating the table. You know by this point in your validation that what has been entered into a specific field meets the validation rules that you have applied to that field. What you don't know is whether the combination ...
Presentation title
... Considered to be an off-line activity (unless you have EE). Index is rebuilt from scratch, and old index is dropped. Virtually all fragmentation and empty space is removed. Everything is rebuilt, whether it needs it or not. Rebuild is generally faster than using Reorganize. Index rebuild is atomic, ...
... Considered to be an off-line activity (unless you have EE). Index is rebuilt from scratch, and old index is dropped. Virtually all fragmentation and empty space is removed. Everything is rebuilt, whether it needs it or not. Rebuild is generally faster than using Reorganize. Index rebuild is atomic, ...
DataMigrator 7.7 in Real Time
... Write changes to a separate table Compare source to target? Effective for small tables Poll the database for changes periodically? Detects additions only ...
... Write changes to a separate table Compare source to target? Effective for small tables Poll the database for changes periodically? Detects additions only ...
A Concept for an Electronic Magazine
... audio, video and 3D objects. Additional information about the authors, their affiliation and their further articles should be provided. Articles have to be accessible by topic, by date, by author and via a context search. A user should be able to subscribe to the EZine by providing a profile of his ...
... audio, video and 3D objects. Additional information about the authors, their affiliation and their further articles should be provided. Articles have to be accessible by topic, by date, by author and via a context search. A user should be able to subscribe to the EZine by providing a profile of his ...
XP Open an existing database
... • The data in the report can consist of data from a single table or multiple tables. • Access has a Reports Wizard that allows you to easily create a report. • The report can be based on a table or it can be based on a query. – If the report is based on a query, it will contain the same fields that ...
... • The data in the report can consist of data from a single table or multiple tables. • Access has a Reports Wizard that allows you to easily create a report. • The report can be based on a table or it can be based on a query. – If the report is based on a query, it will contain the same fields that ...
Transforming Heterogeneous Data with Database Middleware
... We have described two components of Garlic that provide important data transformation facilities. The wrappers provide transformations required by the individual data sources, including data model translation and simple schema and data transformations. Object views enhance the wrapper transformation ...
... We have described two components of Garlic that provide important data transformation facilities. The wrappers provide transformations required by the individual data sources, including data model translation and simple schema and data transformations. Object views enhance the wrapper transformation ...
original - Kansas State University
... OLAP implementations using only relational database features are called relational OLAP (ROLAP) systems Hybrid systems, which store some summaries in memory and store the base data and other summaries in a relational database, are called hybrid OLAP (HOLAP) systems. ...
... OLAP implementations using only relational database features are called relational OLAP (ROLAP) systems Hybrid systems, which store some summaries in memory and store the base data and other summaries in a relational database, are called hybrid OLAP (HOLAP) systems. ...
MIS 2502 Access 2007 Tutorial
... sorted on a common datasheet. The resulting collection of records, called a dynaset (short for dynamic subset), is saved as a database object and can therefore be easily used in the future. The query will be updated whenever the original tables are updated. There are various types of queries. The mo ...
... sorted on a common datasheet. The resulting collection of records, called a dynaset (short for dynamic subset), is saved as a database object and can therefore be easily used in the future. The query will be updated whenever the original tables are updated. There are various types of queries. The mo ...
Document
... Whenever B-Students is used in a query, the view definition is first evaluated, before using B-Students in any other query operation. View concept provides logical data independence, as it can be used to mask the changes in the conceptual schema. Views can be defined taken security aspect into consi ...
... Whenever B-Students is used in a query, the view definition is first evaluated, before using B-Students in any other query operation. View concept provides logical data independence, as it can be used to mask the changes in the conceptual schema. Views can be defined taken security aspect into consi ...
SQL Tutorial Basics of the SELECT Statement
... OwnerID column ensures that the two owners will not be confused with each other, because the unique OwnerID column will be used throughout the database to track the owners, rather than the names. A foreign key is a column in a table where that column is a primary key of another table, which means th ...
... OwnerID column ensures that the two owners will not be confused with each other, because the unique OwnerID column will be used throughout the database to track the owners, rather than the names. A foreign key is a column in a table where that column is a primary key of another table, which means th ...
8. Application Design
... (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = inserted.account-number end ...
... (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = inserted.account-number end ...
A metadata driven approach to performing complex heterogeneous
... schema was its primary keys were of type VARCHAR and these all had to be changed to be of type NUMBER. Changing each database VARCHAR field to be of type NUMBER was non-trivial task as any foreign key links had to be updated. The total amount of SQL queries needed to update the ITNCM 6.2 schema was ...
... schema was its primary keys were of type VARCHAR and these all had to be changed to be of type NUMBER. Changing each database VARCHAR field to be of type NUMBER was non-trivial task as any foreign key links had to be updated. The total amount of SQL queries needed to update the ITNCM 6.2 schema was ...
INTRODUCTION TO TRANSACTION PROCESSING
... • In fact, same problem if just 6 executed between a and c ...
... • In fact, same problem if just 6 executed between a and c ...
Slide Template - Gunadarma University
... Database can be recovered using after-images since the last checkpoint Checkpoint can be done several times per hour ...
... Database can be recovered using after-images since the last checkpoint Checkpoint can be done several times per hour ...
PPT - Big Data Open Source Software and Projects
... • Couch is an acronym for cluster of unreliable commodity hardware • Unlike in a relational database, CouchDB does not store data and relationships in tables. – Instead, each database is a collection of independent documents. – Each document maintains its own data and self-contained schema. – An app ...
... • Couch is an acronym for cluster of unreliable commodity hardware • Unlike in a relational database, CouchDB does not store data and relationships in tables. – Instead, each database is a collection of independent documents. – Each document maintains its own data and self-contained schema. – An app ...
MS SQL SERVER 2005 / 2008 – Management Studio
... You may now drag and drop the keys to implement the relationships (similar to MS Access). You are also able to right click and add new tables or amend existing tables if you need to. Any changes done in the diagram section are reflected in the tables. The following screen is displayed when the pt# f ...
... You may now drag and drop the keys to implement the relationships (similar to MS Access). You are also able to right click and add new tables or amend existing tables if you need to. Any changes done in the diagram section are reflected in the tables. The following screen is displayed when the pt# f ...
chap 10 and normalization and chaps 14 and 13 and 16
... Read committed prevents dirty reads but allows the other problems by not allowing uncommitted writes from being read Repeatable read is the default and it means that a transaction will always read a given value the same because the values are locked ...
... Read committed prevents dirty reads but allows the other problems by not allowing uncommitted writes from being read Repeatable read is the default and it means that a transaction will always read a given value the same because the values are locked ...
Pass4sure 70
... Pass4sureofficial.com is a reputable IT certification examination guide, study guides and audio exam provider, we not only ensure that you pass your 70-433 exam in first attempt, but also you can get a high score to acquire Microsoft certification. If you use pass4sureofficial 70-433 Certification q ...
... Pass4sureofficial.com is a reputable IT certification examination guide, study guides and audio exam provider, we not only ensure that you pass your 70-433 exam in first attempt, but also you can get a high score to acquire Microsoft certification. If you use pass4sureofficial 70-433 Certification q ...
Coordinating Peer-to-Peer Information Sources
... Each database DBi: its language Li, with a set Ai of unary predicates for Attributes, a set of constant symbols DOMi for Elements, a set of predicates Ri for Relations Take a set of such DBi, i in I Define Domain relation rij as a subset of DOMi x DOMj. rij is the set of pairs where, ...
... Each database DBi: its language Li, with a set Ai of unary predicates for Attributes, a set of constant symbols DOMi for Elements, a set of predicates Ri for Relations Take a set of such DBi, i in I Define Domain relation rij as a subset of DOMi x DOMj. rij is the set of pairs
Object - NCNU Moodle 課程
... • Object-oriented DBMSs deal with data as objects – Object: set of related attributes and actions associated with the attributes – OODBMS: database management system in which data and actions that operate on the data are encapsulated into objects ...
... • Object-oriented DBMSs deal with data as objects – Object: set of related attributes and actions associated with the attributes – OODBMS: database management system in which data and actions that operate on the data are encapsulated into objects ...
mySQL Introduction
... The goal of using foreign keys is that tables can be related without repeating data Note that foreign keys in SQL are used to c heck and enforce referential integrity, not to join tables. If you want to get results from multiple tables from a SELECT stat ement, you do this by performing a join b etw ...
... The goal of using foreign keys is that tables can be related without repeating data Note that foreign keys in SQL are used to c heck and enforce referential integrity, not to join tables. If you want to get results from multiple tables from a SELECT stat ement, you do this by performing a join b etw ...
Biometric Databases
... threshold (defined as primary operator) – Score() Returns the degree of match of the input template with a stored template (defined as ancillary to IdentifyMatch operator) • Biometric Vendors define implementations for these operators which are specific to their biometric 14 ...
... threshold (defined as primary operator) – Score() Returns the degree of match of the input template with a stored template (defined as ancillary to IdentifyMatch operator) • Biometric Vendors define implementations for these operators which are specific to their biometric 14 ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.