MONASH INFORMATION TECHNOLOGY The Relational Database Model Overview We now have a conceptual model for Monash Software, it is time to move to the second stage and map this to a logical model For our unit this will involve mapping to the Relational Model in preparation for implementation in a RDBMS ▪ Relational Model ▪ […]
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Equity Research Technology, Media, & Communications | Enterprise and Cloud Infrastructure Database Software Market: The Long-Awaited Shake-up March 22, 2019 Industry Report Jason Ader +1 617 235 7519 jader@williamblair.com Billy Fitzsimmons +1 312 364 5112 bfitzsimmons@williamblair.com Sebastien Naji +1 212 245 6508 snaji@williamblair.com Please refer to important disclosures on pages 70 and 71. Analyst certification
DB Connectivity Web Technology Where Are We ▪ Through this unit we have looked at: ▪ The fundamental principles on which relational databases are built ▪ Designing a relational database and ▪ Implementing a relational database and manipulating its data via SQL ▪ In practice the database you create & populate will be used by
SQL Advanced Outline ▪ CASE ▪Subquery – nested, inline, correlated ▪ Views ▪Joins – self join, outer join ▪Set Operators ▪Oracle Functions 2 2 SQL CASE statement The CASE statement used in the select list enables the query to evaluate an attribute and output a particular value based on that evaluation SELECT unitcode, to_char(ofyear,’YYYY’) as
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FIT2094-FIT3171 Databases Session 3 Tutorial Activities CONCEPTUAL MODELLING FIT Database Teaching Team Complete the week 2 session 3 activities: 3.1. Conceptual Design – Demo 3.2. Using Tools to draw an Entity Relationship Diagram 3.2.1 Setting up Lucidchart 3.2.2 Creating a new LucidChart Diagram 3.2.3 FIT2094-FIT3171 Entity Relationship Diagram Standards 3.2.4 Drawing ER Diagram Using Lucidchart
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SQL Advanced Outline ▪ CASE ▪Subquery – nested, inline, correlated ▪ Views ▪Joins – self join, outer join ▪Set Operators ▪Oracle Functions 2 2 SQL CASE statement The CASE statement used in the select list enables the query to evaluate an attribute and output a particular value based on that evaluation SELECT unitcode, to_char(ofyear,’YYYY’) as
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The Relational Database Model MONASH INFORMATION TECHNOLOGY Overview We now have a conceptual model for Monash Software, it is time to move to the second stage and map this to a logical model For our unit this will involve mapping to the Relational Model in preparation for implementation in a RDBMS ▪ Relational Model ▪
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Update, Delete and Transaction Management MODIFYING ROWS USING UPDATE AND DELETE 2 UPDATE ▪ Changes the value of existing data. ▪ For example, at the end of semester, change the mark and grade from null to the actual mark and grade. UPDATE enrolment SET mark = 80, grade =’HD’ WHERE sno = 112233 and ……
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Oracle Functions Reference: SQL Manual 12C available from Moodle Chapter 7 pp 7-1 – 7-447 or online at: https://docs.oracle.com/database/121/SQLRF/toc.htm Oracle functions are useful for manipulating data by decomposing data elements. They use numerical, date or string values and may appear in a SQL statement wherever a value or attribute is used. Functions are categorised according
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FIT2094-FIT3171 Databases Session 9 Tutorial Activities Update, Delete and Transaction Management FIT Database Teaching Team Complete session 9 activities in week 5 listed below: 9.1 Transactions Management 9.1.1 Lock Exercise – Table 9.1.2 Lock Exercise – Practice 9.2. Using UPDATE and DELETE 9.2.1 UPDATE 9.2.2 DELETE FIT2094-FIT3171 2021 Summer B FIT2094-FIT3171 Databases Author: FIT Database
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