2023年11月9日 · To specify password in command line, you set --password=<pass_goes_here> to use database via command line, you put in mysql -u <user> -p <database_name> this way the -p means that mysql client will prompt for password input and not read it from command line

2019年2月3日 · database() is an information function provided by MySQL to return the name of the current database. It can be used anywhere a string constant would be expected. MySQL does not require a from clause, so a select is a complete query that returns one row -- the values calculated in the select.

2009年11月14日 · If you use MySQL Workbench, you can check the database size as follows: Open MySQL Workbench and connect to your MySQL server. Go to the "Navigator" pane on the left. Right-click on the database you want to check. Select "Schema Inspector." The "Schema Inspector" window will show various details, including the estimated size of the database.

2017年5月29日 · You can try this query. Suppose the database name schoolmanagementsystem, table name student, and table columns name are student_id, student_first_name, and student_last_name. So you can create a table (student) in a particular database (schoolmanagementsystem) following this way.

2022年10月26日 · select database() from dual; That said, it is perhaps important to note, that while FROM DUAL does not actually do anything, it is valid MySQL syntax. From a strict perspective, including braces in a single line conditional in JavaScript also does not do anything , but it is still a valid practice.

2013年8月28日 · mulitiple database select php mysql. 2. How do you SELECT from two databases simultaneously? 0.

2014年11月3日 · SELECT table_name FROM information_schema.tables; To get the name of the tables from a specific database use: SELECT table_name FROM information_schema.tables WHERE table_schema = 'your_database_name'; Now, …

2017年8月17日 · SELECT * FROM `database-test`.users As you can see, I have used the ` character to encapsulate database-test, which makes sure that non alpha-numeric characters, like - will be accepted in the name. Share

-bash$ mysqldump -u user -p password -h remote_host --databases \ db_name --tables table1 table2 table3 | mysql -u user -p password \ -D local_db_name This will pull the data from the remote host with mysqldump and insert it into your local host.

2013年12月22日 · I need to make a select in my mysql database and use the id from the table with the specified name I take from a combobox. I took that name from the combobox and put it into a variable named "nomeres", now I need to do a select with it and take the id from that name from the database.