Check History of Executed Queries in MySQL Easily!

To view the last executed queries, navigate to the upper View menu and select Other Windows > Query History or press Ctrl+Alt+H. This will open the Query History grid, displaying the list of queries. To see the most recent queries, use the sort glyph in the Executed On column. This allows you to sort the queries in either descending or ascending order.

For more information, refer to the SQL Query History documentation.

Yes, you can view recent query history using the performance_schema in MySQL by querying the events_statements_history or events_statements_history_long tables.

First, check that performance_schema is turned on. By default, it is enabled in newer versions of MySQL. You can verify it by executing the following query:

SHOW VARIABLES LIKE 'performance_schema';

If it's turned off, you'll need to enable it by setting performance_schema=ON in the MySQL configuration file (my.cnf or my.ini) and restarting the server.

To view the most recent SQL queries executed by active sessions, query the events_statements_history table. This table captures a limited number of recent statements.

SELECT event_id, sql_text, timer_wait, current_schema
FROM performance_schema.events_statements_history
ORDER BY event_id DESC;

If you need to view more queries than what is stored in the default history table, you can query the events_statements_history_long table, which maintains a longer history of executed queries.

SELECT event_id, sql_text, timer_wait, current_schema 
FROM performance_schema.events_statements_history_long 
ORDER BY event_id DESC 
LIMIT 10;

Note that the events_statements_history table retains only a limited number of queries (default: 10). For longer histories, use events_statements_history_long (default: 100 rows); however, these limits can be configured. In addition, capturing extensive query histories may affect server performance.

If you want to deepen your understanding of database concepts and learn about essential database functions, and advanced SQL data manipulation techniques, such as insertion, deletion, and retrieval, go to the MySQL tutorials.

The default period to store the executed queries is 60 days; the maximum interval you can set is 365 days. You can modify this period by following these steps:

1. Go to the upper Tools menu and select Options.
2. In the dialog that opens, navigate to Environment > Documents > Query History.
3. In the Automatically remove queries older than: [number of days] d. field, specify the period to store the queries.
4. Click OK to save the changes.

After the specified period has ended, the history is automatically deleted. If you want to back up your query history before it is deleted, you can manually copy the query history file from the following default folder: C:\Users\Username\AppData\Roaming\Devart\dbForge Studio for MySQL\ExecutedQueries. Note that these files cannot be viewed directly within dbForge Studio once the data is auto-deleted.

If you want to learn how to enable, configure, and use MySQL query logging, refer to this blog article.

For more information, refer to the SQL Query History documentation.

Yes, you can clear the query history directly from the Query History grid. To do this, click Clear on the toolbar or press Ctrl+Del.

Alternatively, you can configure the tool to automatically remove query history after a specified time period. To do this, follow the steps:

1. Go to the upper Tools menu and select Options.
2. In the dialog that opens, switch to Environment > Documents > Query History.
3. In the Automatically remove queries older than: [number of days] d. field, set the period to store the queries.
4. Click OK to save the changes.

For more information, refer to the SQL Query History documentation.

Yes, you can filter the query history by specific users or databases in dbForge Studio for MySQL as follows:

To filter by specific users:

• In the Query History grid, click the filter icon in the upper-right corner of the User column header.
• On the Values tab that opens, select the username you want to display.
• Click Close.

To filter by specific databases:

• In the Query History grid, click the filter icon in the upper-right corner of the Database column header.
• On the Values tab that opens, select the database you want to display.
• Click Close.

Alternatively, you can apply more advanced text filters:

• In the upper-right corner of the required column header, click the filter icon.
• Switch to the Text Filters tab.
• From the Begins With list, select the operator, such as Equals, Contains, etc.
• From the bottom list, choose the value to filter by.
• Click Close.

For more information, refer to the SQL Query History documentation.

MySQL does not store query history in memory. Instead, dbForge Studio for MySQL manages query history and stores it in files. The default storage location for these query history files is: C:\Users\Username\AppData\Roaming\Devart\dbForge Studio for MySQL\ExecutedQueries. Note that older data in this folder may be auto-deleted based on your configured settings, and files cannot be viewed directly in dbForge Studio once they have been deleted.

To change the storage location of the query history, follow the steps:

1. Navigate to the upper Tools menu and select Options.
2. In the dialog that opens, switch to Environment > Documents > Query History.
3. In the Storage location: field, specify the new folder where you want to store query history.
4. Click OK to save the changes.

For more information, refer to the SQL Query History documentation.