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https://dev.mysql.com/doc/refman/5.7/en/command-line-options.html
Consequently, the following two commands have two completely different meanings: mysql -ptest mysql -p test The first command instructs mysql to use a password value of test, but specifies no default database. The second instructs mysql to prompt ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-files.html
MySQL represents each table by an .frm table format (definition) file in the database directory. For an InnoDB table created in a file-per-table tablespace or general tablespace, table data and associated indexes are stored in a .ibd file in the ...
https://dev.mysql.com/doc/refman/5.7/en/csv-storage-engine.html
When you create a CSV table, the server creates a table format file in the database directory. If you examine the test.CSV file in the database directory created by executing the preceding statements, its contents should look like this: "1","record ... The CSV storage engine stores data in text files using comma-separated values ...
https://dev.mysql.com/doc/refman/5.7/en/derived-tables.html
A derived table is an expression that generates a table within the scope of a query FROM clause. For example, a subquery in a SELECT statement FROM clause is a derived table: SELECT ... The [AS] tbl_name clause is mandatory because every table in a ...
https://dev.mysql.com/doc/refman/5.7/en/document-store-concepts.html
Mogae", "GovernmentForm": "Republic" }, "demographics": { "Population": 1622000, "LifeExpectancy": 39.29999923706055 } } Collection A Collection is a container that may be used to store Documents in a MySQL database. CRUD Operations Create, Read, ...
https://dev.mysql.com/doc/refman/5.7/en/downgrade-before-you-begin.html
The backup should include the mysql database, which contains the MySQL system tables. Review Section 2.11.2, “Downgrade Paths” to ensure that your intended downgrade path is supported. Review Section 2.11.3, “Downgrade Notes” for items that ...
https://dev.mysql.com/doc/refman/5.7/en/drop-tablespace.html
DROP DATABASE has no effect in this regard, even if the operation drops all tables belonging to the tablespace. A DROP DATABASE operation can drop tables that belong to a general tablespace but it cannot drop the tablespace, even if the operation ...
https://dev.mysql.com/doc/refman/5.7/en/drop-user.html
To use DROP USER, you must have the global CREATE USER privilege, or the DELETE privilege for the mysql system database. DROP USER does not automatically drop or invalidate databases or objects within them that the old user created. The DROP USER ...
https://dev.mysql.com/doc/refman/5.7/en/entering-queries.html
Doing so does not in itself select any database to work with, but that is okay. Normally, column labels are the names of the columns you fetch from database tables. Make sure that you are connected to the server, as discussed in the previous ...
https://dev.mysql.com/doc/refman/5.7/en/error-creating-innodb.html
If you already created some InnoDB tables, also delete the corresponding .frm files for these tables, and any .ibd files if you are using multiple tablespaces, from the MySQL database directories. The troubleshooting steps for InnoDB I/O problems ...