PowerPoint Presentation - Title slide
... A numeric fields which contain only numbers and date fields which contain only dates Other field types can include other types of data including graphics, photos, sounds or even videos Computed fields contain formulas similar to spreadsheets. ...
... A numeric fields which contain only numbers and date fields which contain only dates Other field types can include other types of data including graphics, photos, sounds or even videos Computed fields contain formulas similar to spreadsheets. ...
Messaging Framework - Microsoft Center
... Stretch cold data tables from on-premises and/or managed hosted SQL Server to the Azure cloud with remote query processing with no application change Security is built-in with Always Encrypted and Row Level Security Workload analysis using historical data enabled by Query Store Audience ...
... Stretch cold data tables from on-premises and/or managed hosted SQL Server to the Azure cloud with remote query processing with no application change Security is built-in with Always Encrypted and Row Level Security Workload analysis using historical data enabled by Query Store Audience ...
In-Class Exercise #6
... Essentially, you have companies, contacts, and employees. The database will track key data about their sales contacts, the companies for which those employees work, and when an employee gets in touch with a contact. The database will also store basic information about an employee. The Contact-Employ ...
... Essentially, you have companies, contacts, and employees. The database will track key data about their sales contacts, the companies for which those employees work, and when an employee gets in touch with a contact. The database will also store basic information about an employee. The Contact-Employ ...
Lecture 01 of IB Databases Course
... • De-normalized data can often result in faster query response • Normalized data leads to better transaction throughput, and avoids “update anomalies” (corruption of data integrity) Yes, indexing data can speed up transactions, but this just proves the point --- an index IS redundant data. General r ...
... • De-normalized data can often result in faster query response • Normalized data leads to better transaction throughput, and avoids “update anomalies” (corruption of data integrity) Yes, indexing data can speed up transactions, but this just proves the point --- an index IS redundant data. General r ...
Database
... DataGridView control is created by default. It allows users to browse all the rows in the table as well as add, update, and delete rows. The navigation toolbar is also added at the top of the form. The FormLoad method is also created, which contains a call to the Fill method to load the data into th ...
... DataGridView control is created by default. It allows users to browse all the rows in the table as well as add, update, and delete rows. The navigation toolbar is also added at the top of the form. The FormLoad method is also created, which contains a call to the Fill method to load the data into th ...
Database Modelling with ERwin
... The following Editions can be downloaded for Free on Internet: CA ERwin Data Modeler Community Edition ...
... The following Editions can be downloaded for Free on Internet: CA ERwin Data Modeler Community Edition ...
Chapter 1 Introduction to Databases
... Focus was on applications for which programs would be written, and all the data required would be stored in a file or files owned by the programs. (See also Section 1.2). Clearly, each program was responsible for only its own data, which could be repeated in other program’s data files. Different pro ...
... Focus was on applications for which programs would be written, and all the data required would be stored in a file or files owned by the programs. (See also Section 1.2). Clearly, each program was responsible for only its own data, which could be repeated in other program’s data files. Different pro ...
Document
... Client-Server Mechanisms • Connection pooling and multiplexing when multiple clients access a server • Communication buffer on the database server. One per connection. – If a client does not consume results fast enough, then the server holds resources until it can output the result. – Data is sent ...
... Client-Server Mechanisms • Connection pooling and multiplexing when multiple clients access a server • Communication buffer on the database server. One per connection. – If a client does not consume results fast enough, then the server holds resources until it can output the result. – Data is sent ...
Introduction to Databases
... Data Model: What’s a model? • A data model is a representation of reality • It’s used to define the storage and manipulation of a data base. • Data Models have two components: – Structure: the structure of the data stored within – Operations: Facilities for manipulation of the data. ...
... Data Model: What’s a model? • A data model is a representation of reality • It’s used to define the storage and manipulation of a data base. • Data Models have two components: – Structure: the structure of the data stored within – Operations: Facilities for manipulation of the data. ...
Introduction to ADO.NET - University of South Florida
... StreamReader for file input. Provides forward-only, read-only stream of data from a data source Created by calling the ExecuteReader method of a Command object Never with “new” ...
... StreamReader for file input. Provides forward-only, read-only stream of data from a data source Created by calling the ExecuteReader method of a Command object Never with “new” ...
PPT
... Data update over the entire system is not in the same scope the transactions; the system will propagate the update later for the purpose of better respond time ...
... Data update over the entire system is not in the same scope the transactions; the system will propagate the update later for the purpose of better respond time ...
Introduction of Week 2
... Raw versus file systems – OS-controlled file or not Clustering – enforcing the physical sequence of data on disk Free space and compression – storage management File placement and allocation Page size (block size in Oracle) – using the proper page size for efficient data storage and I/O ...
... Raw versus file systems – OS-controlled file or not Clustering – enforcing the physical sequence of data on disk Free space and compression – storage management File placement and allocation Page size (block size in Oracle) – using the proper page size for efficient data storage and I/O ...
ICT Database Lesson 1
... • Examples: creating new tables, deleting rows from existing ones and updating records or creating entirely new ones. • Popular query to run because they allow for many records to be changed at one time • Five kinds of action queries are: 1. Insert Query – adds data to an existing table 2. Append Qu ...
... • Examples: creating new tables, deleting rows from existing ones and updating records or creating entirely new ones. • Popular query to run because they allow for many records to be changed at one time • Five kinds of action queries are: 1. Insert Query – adds data to an existing table 2. Append Qu ...
Exam 2
... ______ A lossless join decomposition of a table results in two or more tables such that join of the tables can regenerate the original table. ______ It is desirable to have a lossy join decomposition. ______ Normalization should remove transitive functional dependencies. ______ In a CREATE TABLE com ...
... ______ A lossless join decomposition of a table results in two or more tables such that join of the tables can regenerate the original table. ______ It is desirable to have a lossy join decomposition. ______ Normalization should remove transitive functional dependencies. ______ In a CREATE TABLE com ...
CSCI 3140 Module 3 – Logical Database
... base relations to produce another relation – A virtual relation that does not actually exist in the database but is produced upon request – Used to hide parts of the database from certain users ...
... base relations to produce another relation – A virtual relation that does not actually exist in the database but is produced upon request – Used to hide parts of the database from certain users ...
Worksheet Answer Key
... 8. The Create tab contains the Templates, Tables, Queries, Forms, Reports, and Macros and Code groups. 9. The External Data tab contains the Import and Link, Export, and Collect Data groups. 10. The Database Tools tab contains the Tools, Macro, Relationships, Analyze, and Move Data groups. 11. A dat ...
... 8. The Create tab contains the Templates, Tables, Queries, Forms, Reports, and Macros and Code groups. 9. The External Data tab contains the Import and Link, Export, and Collect Data groups. 10. The Database Tools tab contains the Tools, Macro, Relationships, Analyze, and Move Data groups. 11. A dat ...
performance tips for batch jobs
... This is probably the most common performance lapse I see. The point is to avoid looping through millions of rows, issuing SQL calls as you go. Instead, try to process all the rows as a group. For example, looping 1 million times, running one SQL statement each time, is much slower than issuing a sin ...
... This is probably the most common performance lapse I see. The point is to avoid looping through millions of rows, issuing SQL calls as you go. Instead, try to process all the rows as a group. For example, looping 1 million times, running one SQL statement each time, is much slower than issuing a sin ...
Introduction to IBM DB2
... • Other objects, like table spaces, refer to the physical implementation of the database. • Finally, some objects, like buffer pools and other memory objects, only deal with how the database performance is managed. • The DBA should first concentrate on the physical implementation of the database. • ...
... • Other objects, like table spaces, refer to the physical implementation of the database. • Finally, some objects, like buffer pools and other memory objects, only deal with how the database performance is managed. • The DBA should first concentrate on the physical implementation of the database. • ...
File
... A database management system is designed to allow flexible access to data (i.e., queries), whereas a file-processing system is designed to allow predetermined access to data (i.e., compiled programs). A database management system is designed to coordinate multiple users accessing the same data at th ...
... A database management system is designed to allow flexible access to data (i.e., queries), whereas a file-processing system is designed to allow predetermined access to data (i.e., compiled programs). A database management system is designed to coordinate multiple users accessing the same data at th ...
Document
... If database crashes during backup. If binaries are destroyed. If entire database server has to be replaced. If SAN loses multiple drives. If database crashes during table movement. If database crashes during use of Flashback Technology • If Read-Only tablespace was created before last backup. • If R ...
... If database crashes during backup. If binaries are destroyed. If entire database server has to be replaced. If SAN loses multiple drives. If database crashes during table movement. If database crashes during use of Flashback Technology • If Read-Only tablespace was created before last backup. • If R ...