DeveloperBreeze

Sql Queries Development Tutorials, Guides & Insights

Unlock 2+ expert-curated sql queries tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your sql queries skills on DeveloperBreeze.

Connecting a Node.js Application to an SQLite Database Using sqlite3

Tutorial October 24, 2024

  • Check File Path:
  • Ensure that the path provided to new sqlite3.Database() is correct and that the directory exists.
  • Permissions:
  • Verify that the application has the necessary permissions to read from and write to the specified directory.

Issue: Errors related to SQL syntax when creating tables or executing queries.

Viewing the Database Size and Identifying the Largest Table in MySQL

Tutorial August 12, 2024
mysql

Execute the following query, replacing your_database_name with the name of your database:

SELECT table_schema AS "Database",
       ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS "Size (MB)"
FROM information_schema.tables
WHERE table_schema = 'your_database_name'
GROUP BY table_schema;