List tables in MySQL or MariaDB from the Linux Shell There are two ways to get a particular database’s list of tables from the command line. They are as follows: Use the command like the one below if all you w
Run the following query to show list of databases: SHOW DATABASES; You can run this statement from MySQL Command Line Client, MySQL Shell, as well as from any GUI tool that supports SQL—for example, dbForge Studio for MySQL. MySQL returns the results in a table with one column—Data...
I'm doing some research in owncloud installation and every time i want to clear the database tables so that, i can go forward. Every time i used to drop the database and recreate it. Its very hard to do that. Then i thought to drop all the tables except
Now, we have to set up the loop. It will take each row of the result and print the data stored there. This way we will display all the records in the table: $query = "SELECT * FROM table_name"; if ($result = $mysqli->query($query)) { /* fetch associative array */ while ...
OPTIMIZE TABLE [table_name];Copy The output shows an informative status message about the actions and the results of the optimization in a table. The command does not reflect the changes immediately due to caching. To clear any cached data about the table size and free space, flush all tabl...
You have a table and you want to see all the other tables which have the foreign key constraints pointing to that table, or to a particular column in that table. To see foreign key relationships of a table: SELECT TABLE_NAME, COLUMN_NAME, ...
MySQL, like most databases, allows you to add comments to each table and column. If used, this is useful for understanding database schema and meaning of data elements. In this tutorial, I would like to show you how to view and edit table and column comments withMySQL Workbench- a free...
all the tables in your MySQL database, if you have to make a choice between the tables to optimize, you can try to see the space that the table has occupied but not utilized to store records. In other words, if a table contains enough unutilized space, you should optimize that table....
In this tutorial you will learn how to insert records in a MySQL table using PHP.Inserting Data into a MySQL Database TableNow that you've understood how to create database and tables in MySQL. In this tutorial you will learn how to execute SQL query to insert records into a table....
Show Logged In MySQL Users Knowing who is logged in when monitoring a MySQL server is crucial. Query theinformation_schema.processlisttable to show all currently running processes and connected users: SELECT user, host, db, command FROM information_schema.processlist;Copy ...