SQL
SQL is a specialized programming language used for interacting with relational databases. It allows you to create, modify, delete, and retrieve data, as well as manage the structure of the database.
Available specialists
Application of SQL
SQL is used in various fields for working with databases.
Database development
Creating and modifying the structure of the database.
Data analysis
Performing complex queries for data analysis.
Data management
Insertion, updating, and deletion of data.
Transaction management
Ensuring reliability and data integrity through transaction management.
Main Operations in SQL
SELECT:
Retrieving data from one or more tables.
INSERT:
Adding new records to the table.
UPDATE:
Modifying existing records in the table.
DELETE:
Deleting records from the table.
CREATE:
Creating new database objects (tables, indexes, etc.).
ALTER:
Modifying the structure of existing database objects.
DROP:
Deleting database objects.
Advantages and Disadvantages of SQL
Standardized
SQL is a standardized language, supported by most database management systems.
Powerful Query Capabilities
SQL allows for complex queries for analysis and data processing.
Scalability and Performance
SQL can work effectively with large volumes of data.
Complexity
Complex queries can be difficult to understand and write, especially for beginners.
Limited Capabilities for Working with Unstructured Data
SQL may not be the most suitable tool for working with unstructured data.
Potential Performance Issues
Without proper optimization, SQL queries can slow down the system.
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