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Course Outline
Relational Database Models
- Understanding the structure of a relational database.
- Exploring different types of table relationships.
- Database normalization and denormalization.
- Relational operators.
Data Retrieval Basics
- Rules for writing SQL queries.
- SELECT statement syntax.
- Selecting all columns.
- Performing calculations using arithmetic operations.
- Using column aliases.
- Working with literals.
- Using the concatenation operator.
Filtering Results
- Utilizing the WHERE clause.
- Comparison operators.
- The LIKE condition.
- Using the BETWEEN ... AND condition.
- Handling NULL values with IS NULL.
- The IN condition.
- Boolean operators: AND, OR, and NOT.
- Combining multiple conditions in the WHERE clause.
- Operator precedence.
- Using the DISTINCT clause.
Sorting Data
- Using the ORDER BY clause.
- Sorting by multiple columns or expressions.
SQL Functions
- Differences between single-row and multi-row (aggregate) functions.
- Text, numeric, and date functions.
- Explicit and implicit data conversion.
- Conversion functions.
- Nesting functions.
- Evaluating function performance using the DUAL table.
- Retrieving the current date using SYSDATE.
- Handling NULL values.
Aggregating Data with Grouping
- Understanding grouping (aggregate) functions.
- How grouping functions handle NULL values.
- Creating data groups using the GROUP BY clause.
- Grouping by multiple columns.
- Filtering aggregated results using the HAVING clause.
Retrieving Data from Multiple Tables
- Types of joins.
- Using NATURAL JOIN.
- Applying table aliases.
- Performing joins within the WHERE clause.
- INNER JOIN.
- Outer joins: LEFT, RIGHT, and FULL OUTER JOIN.
- Understanding the Cartesian product.
Subqueries
- Placing subqueries within the SELECT statement.
- Distinguishing between single-line and multi-line subqueries.
- Operators for single-line subqueries.
- Using grouping functions within subqueries.
- Operators for multi-line subqueries: IN, ALL, ANY.
- Handling NULL values in subqueries.
Set Operators
- UNION operator.
- UNION ALL operator.
- INTERSECT operator.
- MINUS operator.
Data Manipulation: Insert, Update, and Delete
- Using the INSERT command.
- Copying data from another table.
- Using the UPDATE command.
- Using the DELETE command.
- Using the TRUNCATE command.
Transactions
- Commands for COMMIT, ROLLBACK, and SAVEPOINT.
DDL Commands (Data Definition Language)
- Main database objects.
- Rules for naming objects.
- Creating tables.
- Available data types for columns.
- Using the DEFAULT option.
- Using the NULL and NOT NULL options.
Managing Tables
- Referential integrity: CHECK, PRIMARY KEY, FOREIGN KEY, UNIQUE.
- Creating a table from a query.
- Dropping a table: DROP TABLE.
- Using the DESCRIBE command.
Other Schema Objects
- Sequences.
- Synonyms.
- Views.
Requirements
- Basic computer literacy.
- Familiarity with any operating system.
21 Hours
Testimonials (6)
it was structured very well both by days and by modules, easy to follow
Melania - DB Global Technology SRL
Course - Oracle SQL for beginners
I liked the way the trainer explained the information about the topics and the fact that he paid attention to the details so that the lessons were very practical and logical.
Andreea
Course - Oracle SQL for beginners
the trainer give more examples for each chapter
Corina
Course - Oracle SQL for beginners
the interactive exercises
BOANGIU GIORGIANA
Course - Oracle SQL for beginners
the explanations
Daniela
Course - Oracle SQL for beginners
the exercises
