How to query specific table metadata?

To query specific table metadata in a database, you can use the information_schema database. Here’s how to do it in MySQL:

Example Query

To get metadata for a specific table, such as its columns, you can use the following SQL query:

SELECT 
    COLUMN_NAME, 
    DATA_TYPE, 
    IS_NULLABLE, 
    COLUMN_DEFAULT 
FROM 
    information_schema.COLUMNS 
WHERE 
    TABLE_NAME = 'your_table_name' 
    AND TABLE_SCHEMA = 'your_database_name';

Explanation

• COLUMN_NAME: The name of the column.
• DATA_TYPE: The data type of the column (e.g., INT, VARCHAR).
• IS_NULLABLE: Indicates whether the column can accept NULL values.
• COLUMN_DEFAULT: The default value for the column, if any.

Replace 'your_table_name' and 'your_database_name' with the actual names of your table and database.

If you need further assistance or examples, let me know!