com is developing a system to gather and keep massive amounts of intimate information about its millions of shoppers‚ including their religion‚ sexual orientation‚ ethnicity and income. The database‚ which would combine information disclosed voluntarily by customers with facts gleaned from public databases‚ conceivably would give Amazon a larger or more detailed profile of its customers than any other retailer. The Seattle-based company‚ with 59 million active customers‚ said it has no immediate
Premium Backup
Server Express. The advanced services have a database engine‚ full text search‚ reporting services‚ business intelligence development studio‚ and SQL server management studio. The tools have a database engine‚ and SQL server management studio. The SQL Server SQL Express has just a Database engine. The Limitations are there can only be 1 CPU‚ only 1GB of memory‚ only 10GB of size‚ and you can only do replication if you are a subscriber. [3] Oracle Database 11g Express has limitations of 1 CPU‚ 1GB
Premium SQL
2007 server‚ there are always two copies of each change to the database: the change written to the page (or series of pages) in RAM‚ and the log record of those changes in the transaction logs. If the information is lost in RAM‚ if it has been written to a transaction log‚ it can be recovered and written to the database. This graph shows the types of backups and its effects on the files/transaction logs. Type Copies
Premium Microsoft Microsoft Windows Windows Server 2008
Normalization Normalization is a method for organizing data elements in a database into tables. Normalization Avoids • Duplication of Data – The same data is listed in multiple lines of the database • Insert Anomaly – A record about an entity cannot be inserted into the table without first inserting information about another entity – Cannot enter a customer without a sales order • Delete Anomaly – A record cannot be deleted without deleting a record about a related entity.
Premium Database normalization
College of Business Hospitality & Tourism Studies Department of Computer Science & Information System CIN623 Database Design & Programming Final Examination Trimester 1 – 2011 Date: Duration:3 hours plus 10 minutes INSTRUCTION TO STUDENTS 1. You are allowed ten minutes extra reading time during which you are not to write 2. Write all answers to each question in the Answer Booklet. 3. Write your Student ID number at the top of each attached sheet. 4. Insert all written foolscaps in their correct sequence
Premium Database Relational model SQL
Although‚ data is separated into different and more complex tables during normalization‚ the process of normalizing a database can help to organize data more efficiently by minimizing redundancy and providing more accurate records. During the process‚ column and field names are consolidated into more specific ones to avoid repetition of data. In many cases‚ tables are divided into two or more tables and linked via a relationship using their Primary Keys and/or Foreign Keys. The main goal is to
Premium Data modeling Database normalization Relation
Relaional Database Management Questions Planning for backup and recovery of database information is done by _________________ A.Data Assurance team B.Data management C.DBA D.Data-Query Reset Selection Question 2 of 10 10.0 Points Please choose the functions of a Database? A. Data Definition and Manipulation B. Data Recovery and consistency C. Performance of Queries D. Data Dictionary Maintenance A.A‚ B‚ C and D B.A‚ C and D C.B‚ C and D D.A‚ B and C
Premium SQL Database Data modeling
PubMed and Google Scholar are two different databases used for searching articles on online. PubMed are mostly used for biomedical and clinical journals. The data information are organized based on the date‚ author‚ tittle and type of article. This made it easier to search and retrieve journal articles faster. PubMed have an advance function like MeSH term subheading but Google scholar lack MeSH function (Jean-François‚ Laetitia‚ & Stefan‚ 2013). Also‚ the content of the articles on PubMed are
Premium Academic publishing Sleep Information retrieval
The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. entity type is a collection of entity instances sharing similar properties Strong Entity Vs Weak Entity An entity set that does not have sufficient attributes to form a primary key is termed as a weak entity set. An entity set that has a primary key is termed as strong entity set. A weak entity is existence dependent. That is the
Premium Entity-relationship model Data modeling
16/1/2015 Coursera Feedback — Graded Quiz #1 (Symmetry 3 Part I) Help Thank you. Your submission for this quiz was received. You submitted this quiz on Thu 15 Jan 2015 6:44 PM PST. You got a score of 9.00 out of 10.00. You can attempt again‚ if you’d like. Question 1 Louis Braille developed his embossed dots for the visually impaired in 1824 when he was only 15 years old. The Braille cell is a 2 x 3 point block onto which raised dots are placed. The figure shows the grid (small black do
Premium Abductive reasoning