Learn how to leverage table aliases specified as part of your SQL query in combination with joins.
- [Instructor] Note that when writing sequel queries…utilizing joins you can also leverage…aliases for your tables.…For example we can type select…first name,…department name…from employees…and give the table an alias such as emp…join departments…and give the table an alias such as dept…on emp.department…id equals dept.department id.…
When executing this query we'll get our result as expected.…But now that I've specified the table alias…for both the employees table…as well as the departments table.…That's because I've provided an alias of emp…for the employees table…and an alias of dept for the departments table.…
Note: This training course is appropriate for beginning database developers with no prior experience with SQL or Oracle.
- Using Oracle SQL*Developer, the free development environment
- Selecting data from tables
- Filtering data
- Using functions to manipulate data
- Joining data from tables
- Creating tables
- Updating values
- Truncating data
- Grouping and ordering result sets
- Working with primary keys
- Checking constraints
Skill Level Beginner
Database Foundations: Core Conceptswith Adam Wilbert2h 14m Beginner
Database Foundations: Administrationwith Adam Wilbert1h 14m Beginner
Oracle 12c Database: Administrationwith David Yahalom3h 58m Beginner
1. Introduction to SQL
2. Preparing the Course Environment
Downloading the course VM2m 16s
3. Using Oracle SQL Developer
4. Basic SELECT Queries
5. String, Number, and Date Functions
6. Joining Table Data
7. Manipulating Data
8. Grouping Data
9. Advanced Topics
Next steps1m 33s
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