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Course Outline
Relational Database Models
- Structure of a relational database.
- Table connection types.
- Database normalization and denormalization.
- Relational operators.
Retrieving Data
- Rules for writing SQL queries.
- Syntax for the SELECT statement.
- Selecting all columns.
- Queries using arithmetic operations.
- Column aliases.
- Literals.
- Concatenation operator.
Filtering Results
- The WHERE clause.
- Comparison operators.
- LIKE condition.
- Range condition BETWEEN ... AND.
- IS NULL condition.
- IN condition.
- Boolean operators: AND, OR, NOT.
- 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 functions.
- Explicit and implicit conversions.
- Conversion functions.
- Nesting functions.
- Testing function performance using the DUAL table.
- Retrieving the current date using SYSDATE.
- Handling NULL values.
Aggregating Data with 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.
- Using NATURAL JOIN.
- Table aliases.
- Joins within the WHERE clause.
- INNER JOIN.
- Outer joins: LEFT, RIGHT, FULL OUTER JOIN.
- Cartesian product.
Subqueries
- Placing subqueries in the SELECT statement.
- Single-row and multi-row subqueries.
- Operators for single-row subqueries.
- Using grouping functions in subqueries.
- Operators for multi-row 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 Commands
- Key database objects.
- Rules for naming objects.
- Creating tables.
- Data types available for columns.
- DEFAULT option.
- NULL and NOT NULL options.
Managing Tables
- Referential integrity: CHECK, PRIMARY KEY, FOREIGN KEY, UNIQUE.
- Creating a table via query.
- Dropping a table: DROP TABLE.
- DESCRIBE command.
Other Schema Objects
- Sequences.
- Synonyms.
- Views.
Requirements
- Basic computer literacy.
- Knowledge of 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
