How to Efficiently Retrieve All Column Names in a MySQL Database?

Obtaining All Column Names for All Tables in MySQL Effectively

For efficient retrieval of all column names across all tables in a MySQL database without manually listing each table, utilize the following SQL query:

<code class="sql">select column_name
from information_schema.columns
where table_schema = 'your_db'
order by table_name,ordinal_position</code>

Explanation:

• The query retrieves the column_name from the information_schema.columns table.
• table_schema = 'your_db' filters the results to include columns from tables within the specified database, 'your_db'.
• order by table_name,ordinal_position sorts the results first by table name and then by the ordinal position of the column within the table.

This optimized query provides a comprehensive list of all column names in the database, eliminating the need for iterating through all tables and issuing separate queries for each.

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