English | MP4 | AVC 1280×720 | AAC 44KHz 2ch | 2h 55m | 534 MB
This course focuses on seven core concepts: data types, designing a normalized database, identifying rows with primary keys, linking data with foreign keys, formalizing data relationships, indexes, and constraints. Database expert Adam Wilbert describes techniques that database developers use to protect their data. He explains why data types are important in creating a consistent data storage environment, then walks you through several common data types. Adam shows you the three normal forms of good database design.
In order to work with the data stored in each row in a table, the table must contain a primary key column, or set of columns. Foreign keys provide the glue that the entire system is built on. Adam steps you through how to incorporate primary keys and foreign keys into the design of your database tables. He walks through data relationships, indexes, and constraints, then concludes with other courses you may find useful.
Table of Contents
1 Organizing data in a database
2 What you should know
3 Making the most of the exercise files
4 Set up the database servers
5 Data integrity concepts
6 The role of data types
7 Numeric data types
8 Character data types
9 Date and time data types
10 Additional common types
11 Challenge – Choosing data types
12 Solution – Choosing data types
13 Protect data integrity with normalization
14 First normal form
15 Second normal form
16 Third normal form
17 Denormalization considerations
18 Purpose of a primary key
19 Establish the table’s primary key
20 Natural keys
21 Composite keys
22 Surrogate keys
23 Challenge – Add a primary key to a table
24 Solution – Add a primary key to a table
25 What are foreign keys
26 Add a foreign key column to a table
27 Create a relationship between tables
28 IDENTITY column sequences
29 One-to-many relationships
30 One-to-one relationships
31 Many-to-many relationships
32 Self-referencing relationships
33 Cascade updates and deletes
34 Challenge – Link tables with keys
35 Solution – Link tables with keys
36 Table indexes
37 Add indexes to a table
38 View index statistics
39 Validate data with constraints
40 Null constraints
41 Unique constraints
42 Setting default values
43 Check constraints
44 Challenge – Add constraints to a table
45 Solution – Add constraints to a table
46 Next steps
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