Developing SQL Queries for Oracle Databases
COURSE TYPE
Practitioner
Course Number
234
Duration
4 Days
About This Course: SQL forms the cornerstone of all relational database operations. Taking full advantage of its power requires an in-depth understanding of the language. In this course, you learn to use the full potential of SQL to write complex queries for Oracle databases. You gain the practical skills to choose the best query method to ensure accuracy and avoid common errors or pitfalls.
You Will Learn How To
- Maximize the potential of SQL to formulate complex queries
- Thoroughly test SQL queries and avoid common errors
- Select the most efficient solution to complex SQL problems
- Leverage the analytical functions of Oracle
- Employ inner joins, outer joins, cross joins and self joins
- Apply the full range of complex query types
Course Outline
- Introduction and Overview
The uses of SQL queries
- Why SQL can be both easy and difficult
- Recommendations for thorough testing
Enhancing query performance
- Query optimization
- Choosing the most efficient query method
- Leveraging SQL Functions to Build Queries
Aggregate functions
- Grouping in several levels
- Grouping and NULLs
- CUBE and ROLLUP
- Building crosstab reports
- Utilizing the PIVOT operator in Oracle 11g
Single-row functions
- String-manipulation functions
- Functions for date and time manipulation
- Simulating IF ... THEN ... ELSE with functions
- Handling regular expressions with Oracle 10g functions
- Performing Extensive Analysis with Analytical Functions
Calculating ranks
- RANK and DENSE_RANK
- ROW_NUMBER depending on ORDER BY
Extending the use of aggregates
- Partitioning in multiple levels
- Computing running totals
- Comparing row and aggregate values
- Defining sliding window boundaries
- Developing Complex Joins
Creating inner and outer joins
- Building multiple table joins
- Grouping and joins
How and when to use self-joins
- Implementing recursive self-joins with CONNECT BY
- CONNECT BY and join simultaneously
- Oracle 10g enhancements to CONNECT BY
Applying the ANSI standard join syntax
- INNER JOIN
- CROSS JOIN
- LEFT, RIGHT and FULL OUTER JOIN
- Adding filter conditions to OUTER JOINS
- Differences between new ANSI and old Oracle style
Manipulating the set operators
- UNION and UNION ALL
- INTERSECT
- MINUS
- Building Subqueries
Noncorrelated subqueries
- Subqueries that return NULL
- Multiple row subqueries
- Multiple column subqueries
Handling correlated subqueries
- Fetching main query values
- The EXISTS operator
- Avoiding accidental correlation
Subqueries in the FROM clause
- Breaking up a complex problem into manageable pieces
- Factoring subqueries for reusability
- Applying recursive factored subqueries in Oracle 11g R2
Subqueries as expressions
- Subqueries as parameters to functions
- Correlated and noncorrelated subqueries in expressions
- Employing Views and Temporary Tables
Overcoming obstacles with views
- Multiple group levels in one query
- How views impact performance
Temporary tables as alternatives to views
- Avoiding interference from other users
- Tailoring temporary tables
- Introducing Oracle 12
- Limiting the number of rows returned with FETCH
- Retrieving partly results with OFFSET
- Simulating joins with lateral views and APPLY
- Declaring local functions in the WITH clause
Course Schedule
Attend this live, instructor-led course In-Class or Online via AnyWare.
Hassle-Free Enrollment: No advance payment required.
Tuition due 30 days after your course.
Nov 8 - 11 New York/AnyWare Enroll Now
Jan 24 - 27 Ottawa/AnyWare Enroll Now
Feb 7 - 10 Herndon, VA/AnyWare Enroll Now
Feb 14 - 17 Toronto/AnyWare Enroll Now
Feb 21 - 24 New York/AnyWare Enroll Now
Mar 7 - 10 Rockville, MD/AnyWare Enroll Now
Mar 21 - 24 Alexandria, VA/AnyWare Enroll Now
May 30 - Jun 2 Ottawa/AnyWare Enroll Now
Jun 6 - 9 Herndon, VA/AnyWare Enroll Now
Aug 8 - 11 New York/AnyWare Enroll Now
Aug 15 - 18 Ottawa/AnyWare Enroll Now
Aug 22 - 25 Toronto/AnyWare Enroll Now
Sep 5 - 8 Rockville, MD/AnyWare Enroll Now
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Tuition
Standard
$2990
Government
$2659
Course Tuition Includes:
Questions
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An experienced training advisor will happily answer any questions you may have and alert you to any tuition savings to
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Training Hours
Standard Course Hours: 9:00 am – 4:30 pm
*Informal discussion with instructor about your projects or areas of special interest: 4:30 pm – 5:30 pm
FREE Online Course Exam (if applicable) – Last Day: 3:30 pm – 4:30 pm
By successfully completing your FREE online course exam, you will:
- Have a record of your growth and learning results.
- Bring proof of your progress back to your organization
- Earn credits toward industry certifications (if applicable)
- Make progress toward one or more Learning Tree Specialist & Expert Certifications (if applicable)
Enhance Your Credentials with Professional Certification
Learning Tree's comprehensive training and exam preparation guarantees that you will gain the knowledge and confidence to achieve professional certification and advance your career.
This course qualifies for 23 CPE credits from the National Association of State Boards of Accountancy CPE program. Read more ...