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How to create a database from shell command?
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cat filename.sql | mysql -u username -p # type mysql password when asked for it
Where filename.sql holds all the sql to create your database. Or...
echo "create database `database-name`" | mysql -u username -p
If you really only want to cr...
App Inventor 2 试验组件 · App Inventor 2 中文网
...询问问题，连续的对话将记住先前对话中的信息，使用 重置对话 方法重置开始新的对话。
重置对话()
重置当前对话，聊天机器人在回复时会忘记之前的任何对话。
Firebase数据库
Firebase 组件与 Web 服务通信以存储并获取...
SQL JOIN and different types of JOINs
... film_actor fa
WHERE a.actor_id = fa.actor_id
)
Some folks (especially MySQL people) also write ANTI JOIN like this:
SELECT *
FROM actor a
LEFT JOIN film_actor fa
USING (actor_id)
WHERE film_id IS NULL
I think the historic reason is performance.
LATERAL JOIN
OMG, this one is too cool. I'm t...
How do I import an SQL file using the command line in MySQL?
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Try:
mysql -u username -p database_name < file.sql
Check MySQL Options.
Note-1: It is better to use the full path of the SQL file file.sql.
Note-2: Use -R and --triggers to keep the routines and triggers of original databas...
grant remote access of MySQL database from any IP address
...nd grants for both localhost and network access. And, of course, be sure mysqld is bound to 0.0.0.0 vs. 127.0.0.1.
– Charlie Reitzel
Aug 8 '19 at 18:41
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How do I find out my MySQL URL, host, port and username?
I need to find my MySQL username. When I open the MySQL command line client, it only asks me for my password. I don't remember my username. And for connectivity with JDBC, I need the URL, host and port number. Where do I find all of these?
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How to get a list of user accounts using the command line in MySQL?
I'm using the MySQL command line utility and can navigate through a database. Now I need to see a list of user accounts. How can I do this?
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How to see log files in MySQL?
I've read that Mysql server creates a log file where it keeps a record of all activities - like when and what queries execute.
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What is the difference between “INNER JOIN” and “OUTER JOIN”?
...ess of whether or not the other table has a matching value.
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MySQL 8.0 Reference Manual - Join Syntax
Oracle Join operations
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How do I put an 'if clause' in an SQL string?
So here's what I want to do on my MySQL database.
9 Answers
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