Doing a table dump in terminal can be daunting. Especially if you are keeping track of Unix binaries or usage logs. I keep a copy of phpMyAdmin on my dev box for looking through the tables via a web browser. You can execute queries or mysql operations via the GUI and have the mysql ...
对于MySQL或MariaDB: sql SHOW TABLES; 对于PostgreSQL: sql \dt 或者 sql SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'; 对于SQL Server: sql SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_CATALOG='your_database_nam...
You might not need to address theREFERENCED_TABLE_SCHEMAfor the current database you’re opening. Need a good GUI Tool for MySQL? TablePlus is a modern, native tool with an elegant UI that allows you to simultaneously manage multiple databases such as MySQL, PostgreSQL, SQLite, Microsoft SQL ...
Let’s say, you want to analyze the stages of a query that is spending most of the time in, you need to enable the respective logging using the below query. 1 2 3 4 5 MySQL> update performance_schema.setup_consumers set ENABLED='YES' where NAME='events_stages_current'; Query OK, ...
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...
https://mariadb.com/kb/en/mariadb/optimizing-table_open_cache/ setting the query_cache_type to 1 (per mysqltuner recommendations): $ sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf change the query_cache_type to 1 in the [mysqld] section so it looks like this: ...
CREATE TABLE fed_orders ( ..., shipname TYPE(LEN), freight TYPE(LEN), ..., ) ENGINE=FEDERATED DEFAULT CHARSET=latin1 CONNECTION='fedSQL/orders'; NOTE: The table schema for the FEDERATED table must match the remote table schema exactly. You can always connect directly to the MySQL remoti...
We have a version 5.7.38 MySQL database running on AWS for a long time and the free storage space has been quite constant until recently - the free storage space has suddenly dropped 30%. INFORMATION_SCHEMA.TABLES shows us that DATA_FREE of many of the tables have grown significantly, e...
| performance_schema | +---+ 2 row in set (0.0006 sec) It seems I don’t have access to many databases… The default privilege is very limited: mysql> show grants; +---+ | Grants for user1@% | +---+ | GRANT USAGE ON.TOuser1%@user1%| ...
mysql> use thegeekstuff; mysql> OPTIMIZE TABLE EMPLOYEE; You can also optimize multiple tables in a single command as shown below. mysql> OPTIMIZE TABLE EMPLOYEE, DEPARTMENT, BENEFITS Few points to keep in mind about optimize table: Optimize table can be performed for InnoDB engine, or MyISAM...