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Course Outline
Relational Database Models
- Structure of a relational database.
- Types of table relationships.
- Database normalization and denormalization.
- Relational operators.
Data Retrieval
- Rules for writing SQL queries.
- SELECT syntax.
- Selecting all columns.
- Queries involving arithmetic operations.
- Column aliases.
- Literals.
- Concatenation operator.
Filtering Results
- The WHERE clause.
- Comparison operators.
- LIKE condition.
- BETWEEN ... AND condition.
- IS NULL condition.
- IN condition.
- Boolean operators: AND, OR, and NOT.
- Using multiple conditions in the WHERE clause.
- Operator precedence.
- DISTINCT clause.
Sorting Data
- The ORDER BY clause.
- Sorting by multiple columns or expressions.
SQL Functions
- Differences between single-row and multi-row functions.
- Text, numeric, and date features.
- Explicit and implicit conversion.
- Conversion functions.
- Nesting functions.
- Function performance testing using the DUAL table.
- Retrieving the current date using the SYSDATE function.
- Handling NULL values.
Data Aggregation Using Grouping
- Grouping functions.
- How grouping functions handle NULL values.
- Creating data groups using the GROUP BY clause.
- Grouping by multiple columns.
- Filtering grouped results using the HAVING clause.
Retrieving Data from Multiple Tables
- Types of joins.
- Usage of NATURAL JOIN.
- Table aliases.
- Joins within the WHERE clause.
- INNER JOIN.
- Outer joins: LEFT, RIGHT, and FULL OUTER JOIN.
- Cartesian product.
Subqueries
- Positioning subqueries within the SELECT command.
- Single-line and multi-line subqueries.
- Operators for single-line subqueries.
- Using grouping functions in 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.
Inserting, Updating, and Deleting Data
- INSERT command.
- Copying data from another table.
- UPDATE command.
- DELETE command.
- TRUNCATE command.
Transactions
- Commands: COMMIT, ROLLBACK, and SAVEPOINT.
DDL (Data Definition Language) Commands
- Main database objects.
- Object naming conventions.
- Creating tables.
- Available data types for columns.
- DEFAULT option.
- NULL and NOT NULL options.
Table Management
- Referential integrity: CHECK, PRIMARY KEY, FOREIGN KEY, UNIQUE.
- Creating a table via a query.
- Dropping a table: DROP TABLE.
- 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
