Writing SQL Queries for Oracle
Creating reports, analytics, or applications? And need to get data out of Oracle? Learn to write SQL queries like a pro !
Enroll now for $95 USD !Course Summary
Do you need to learn how to write SQL queries for Oracle?
- You know that the information that you need is stored in a Oracle database
- You need to find some data to extract it
- You need to create reports with reporting tools
- You are using analytic tools like Power BI, Tableau, QlikView, Excel, or Access and need to get data from Oracle
- You want to learn to write queries properly, using commercial coding standards
- You are new to writing queries, or you are self-taught and want to make sure you are doing it correctly
If so, this course is for you! And as well as detailed instruction, the course also offers optional practical exercises and quizzes to reinforce your learning.
We encourage you to complete the practical exercises. We have tried to make this as easy as possible.
Enroll now for $95 USD !
Modules and Lessons
Module 0: Getting started
Who is this course for?
Who is Greg?
What will I learn in this course?
Overview of lab setup
Module 1: Introduction to querying Oracle
Module introduction
What is Oracle Database ?
Oracle Database editions
What is SQL ?
What is PL/SQL ?
Types of SQL statements
What are databases ?
What are pluggable databases ?
What is sqlplus ?
What is SQL Developer ?
Connecting to Oracle
Finding help and documentation
Lab 1: Introduction to querying Oracle
Quiz 1: Introduction to querying Oracle
Module 2: Querying a single table
Module introduction
What are tables ?
Finding out what’s in a table
What are schemas ?
What is Popkorn Kraze ?
SELECT statements
Using aliases for columns and tables
Quoted identifiers
Using 2-part names
ORDER BY clause
Limiting rows with OFFSET and FETCH
Removing duplicates with DISTINCT
Querying literals, expressions, and functions
Lab 2: Querying a single table
Lab 2: Answers
Quiz 2: Querying a single table
Module 3: Filtering the rows to return
Module introduction
Filtering output with the WHERE clause
Finding patterns with LIKE
Logical operations with AND, OR, and NOT
Working with logical values
Ranges of values with the BETWEEN operator
Checking lists of values with IN
Limiting output rows with FETCH
Using FETCH WITH TIES
Working with NULL values
What are user-defined functions ?
Lab 3: Filtering the rows to return
Lab 3: Answers
Quiz 3: Filtering the rows to return
Module 4: Working with queries
Module introduction
Using statement terminators
Working with scripts in SQL Developer
Using query history and worksheets
Copying and exporting query results
Committing or rolling back changes
Commenting code
Formatting your scripts for readability
Quiz 4: Working with queries
Module 5: Querying numbers
Module introduction
What are data types ?
Exact numbers
Identity and generated numeric values
Approximate numbers
Numeric operators
Integer and decimal division
Common numeric functions
Lab 5: Querying numbers
Lab 5: Answers
Quiz 5: Querying numbers
Module 6: Querying strings
Module introduction
String data types
Literal string values
String operators
Trimming strings with LTRIM, RTRIM, and TRIM
Changing case with UPPER, LOWER, and INITCAP
Extracting parts of strings with SUBSTR
Determining the length of strings
Replacing substrings
Padding and repeating characters
Finding substrings with INSTR
Replacing characters with TRANSLATE
Lab 6: Querying strings
Lab 6: Answers
Quiz 6: Querying strings
Module 7: Querying dates and times
Module introduction
Date and time data types
Literal date and time values
Current date and time
Extracting components from date and time values
Adding and subtracting date and time values
Working with intervals
Calculating date and time differences
Calculating ages
Get string names for date and time parts
Calculating beginning and end of month
Constructing dates and times from components
Changing time zone offsets
Formatting date and time values
Lab 7: Querying dates and times
Lab 7: Answers
Quiz 7: Querying dates and times
Module 8: Converting between data types
Module introduction
Replacing NULL values with COALESCE
Returning NULL When Equal with NULLIF
Comparing nullable values
Implicit vs explicit conversions
Converting data types with CAST
Converting strings to dates and numbers
Other built-in data types
Lab 8: Converting between data types
Lab 8: Answers
Quiz 8: Converting between data types
Module 9: Aggregating data
Module introduction
Counting rows and columns with COUNT
Summarizing data with SUM, AVG, MIN, MAX
Summarizing data in sections with GROUP BY
Filtering returned groups with HAVING
Understanding logical query execution order
Numbering rows with window functions
Partitioning ranking and numbering with PARTITION BY
Other categories of aggregates
Lab 9: Aggregating data
Lab 9: Answers
Quiz 9: Aggregating data
Module 10: Implementing logic in scripts
Module introduction
Using conditional expressions with CASE
Simplifying conditionals with GREATEST, LEAST
SQL vs PL/SQL
Outputting messages
PL/SQL blocks
Defining Variables and Assigning Values
Adding conditional logic with IF, ELSE
Creating loops with WHILE
Creating loops with FOR
Advanced loop options
Creating loops with LOOP
Lab 10: Implementing logic in scripts
Lab 10: Answers
Quiz 10: Implementing logic in scripts
Module 11: Querying multiple tables
Module introduction
What is a primary key ?
What is a foreign key ?
Using CROSS JOIN
Using INNER JOIN
Using modern join syntax
Using LEFT OUTER JOIN
Other OUTER join types
Joining more than two tables
Joining a table to itself (self join)
Joins without equality (non-equi joins)
Lab 11: Querying multiple tables
Lab 11: Answers
Quiz 11: Querying multiple tables
Module 12: Applying set operations to tables
Module introduction
Rules for set operations
Using UNION and UNION ALL
Excluding data with MINUS
Finding common data with INTERSECT
Selecting from set-returning functions
Implementing lateral joins with APPLY
Lab 12: Applying set operations to tables
Lab 12: Answers
Quiz 12: Applying set operations to tables
Module 13: Using subqueries
Module introduction
Using subqueries
Using scalar subqueries
Using lists from subqueries
Checking for existence with EXISTS subqueries
Using set-returning subqueries
Using VALUES row constructors
Simplifying queries with common table expressions (CTEs)
Using multiple CTEs in a single query
Lab 13: Using subqueries
Lab 13: Answers
Quiz 13: Using subqueries
Module 14: Working with stored procedures and the data dictionary
Module introduction
What is a stored procedure ?
Stored procedures vs functions
Executing stored procedures
Using anonymous PL/SQL blocks
Executing dynamic SQL statements
Querying the data dictionary
Querying system functions
Lab 14: Working with stored procedures and catalog views
Lab 14: Answers
Quiz 14: Working with stored procedures and catalog views
Module 15: Modifying data
Module introduction
Inserting data into a table
Inserting multiple rows at once with VALUES
What are default constraints ?
What are identity columns ?
Identifying the last value inserted
What is a check constraint ?
What is a unique constraint ?
Deleting rows from a table
Inserting rows with data from another table
Selecting rows into a new table
Truncating a table vs deleting all rows
Updating data in a table
Merging data into a table
Lab 15: Modifying data
Lab 15: Answers
Quiz 15: Modifying data
Module 16: Next steps
Summary and further steps
Enroll now for $95 USD !