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Course Outline
Relational Database Models
- The structure of a relational database.
- Types of table connections.
- Database normalization and denormalization.
- Relational operators.
Retrieving Data
- Rules for writing SQL queries.
- Syntax for the SELECT statement.
- Selecting all columns.
- Queries involving arithmetic operations.
- Column aliases.
- Literal values.
- Concatenation operators.
Filtering Results
- The WHERE clause.
- Comparison operators.
- The LIKE condition.
- The BETWEEN ... AND condition.
- The IS NULL condition.
- The IN condition.
- Boolean operators: AND, OR, and NOT.
- Using multiple conditions in the WHERE clause.
- The precedence of operators.
- The DISTINCT clause.
Sorting Data
- 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 conversion.
- Conversion functions.
- Nesting functions.
- Evaluating function performance using the DUAL table.
- Retrieving the current date using the SYSDATE function.
- Handling NULL values.
Aggregating Data Using Grouping
- Grouping (aggregate) functions.
- How grouping functions handle NULL values.
- Creating groups of data - the GROUP BY clause.
- Grouping by multiple columns.
- Filtering group results - the HAVING clause.
Retrieving Data from Multiple Tables
- Types of joins.
- Using NATURAL JOIN.
- Table aliases.
- Joins specified in the WHERE clause.
- INNER JOIN.
- Outer joins: LEFT, RIGHT, and FULL OUTER JOIN.
- Cartesian product.
Subqueries
- Placing subqueries within the SELECT command.
- Single-line and multi-line subqueries.
- Operators for single-line subqueries.
- Grouping features 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.
Inserting, Updating, and Deleting Data
- INSERT command.
- Copying data from another table.
- UPDATE command.
- DELETE command.
- TRUNCATE command.
Transactions
- COMMIT, ROLLBACK, and SAVEPOINT commands.
DDL Commands
- Main 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.
- 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
