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Course Outline
Relational database models
- The structure of a relational database
- Connection types of tables
- The normalization and denormalization database
- Relational Operators
Download the data
- Rules for writing SQL queries
- The syntax for the SELECT
- Selecting all columns
- Inquiries from arithmetic operations
- Aliases columns
- Literals
- Concatenation operator
Limiting results
- The WHERE clause
- Comparison operators
- LIKE Condition
- Prerequisite BETWEEN ... AND
- IS NULL condition
- Condition IN
- Boolean operators AND, OR and NOT
- Many of the conditions in the WHERE clause
- The order of the operators.
- DISTINCT clause
Sorting Data
- The ORDER BY clause
- Sorting by multiple columns or expressions
SQL functions
- The differences between the functions of one and multilines
- Features text, numeric, date,
- Explicit and implicit conversion
- Conversion functions
- Nesting functions
- Viewing the performance of the functions - dual table
- Getting the current date function SYSDATE
- Handling of NULL values
Aggregating data using the grouping
- Grouping functions
- How grouping functions treat NULL values
- Create groups of data - the GROUP BY clause
- Grouping multiple columns
- Limiting the function result grouping - the HAVING clause
Retrieving data from multiple tables
- Types of connectors
- The use NATURAL JOIN
- Aliases tables
- Joins in the WHERE clause
- INNER JOIN Inner join
- External Merge LEFT, RIGHT, FULL OUTER JOIN
- Cartesian product
Subqueries
- Place subqueries in the SELECT command
- Subqueries single and multi-lineage
- Operators Subqueries single-line
- Features grouping in subquery
- Operators Subqueries multi-IN, ALL, ANY
- How NULL values are treated in subqueries
Operators collective
- UNION operator
- UNION ALL operator
- INTERSECT operator
- MINUS operator
Insert, update, and delete data
- INSERT command
- Copy data from another table
- UPDATE command
- DELETE command
- TRUNCATE command
Transactions
- Commands COMMIT, ROLLBACK, and SAVEPOINT
DDL commands
- The main database objects
- Rules for naming objects
- Creating tables
- The data types available for columns
- DEFAULT option
- Option NULL and NOT NULL
Managing tables
- Referential integrity CHECK, PRIMARY KEY, FOREIGN KEY, UNIQUE
- Create a table by the query
- Delete a table DROP TABLE
- DESCRIBE command
Other schema objects
- Sequences
- Synonyms
- Views
Requirements
- 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
