How to create new user in mysql in ubuntu

How do I add a user to all privileges in MySQL?

In order to grant all privileges of the database for a newly created user, execute the following command: GRANT ALL PRIVILEGES ON * . * TO ‘new_user’@’localhost’;

How do I create a remote access user in MySQL?

  1. Find mysql config to edit:
  2. Find bind-address=127.0.0.1 in config file change bind-address=0.0.0.0 (you can set bind address to one of your interface ips or like me use 0.0.0.0)
  3. Restart mysql service run on console: service restart mysql.
  4. Create a user with a safe password for remote connection.

How do I connect to a remote database?

Allowing a Remote Server to Access Your Database
  1. Log into cPanel and click the Remote MySQL icon, under Databases.
  2. Type in the connecting IP address, and click the Add Host button.
  3. Click Add, and you should now be able to connect remotely to your database.

Why MyISAM gives the best performance?

MyISAM is designed with the idea that your database is queried far more than its updated and as a result it performs very fast read operations. If your read to write(insert|update) ratio is less than 15% its better to use MyISAM.

Is InnoDB faster than MyISAM?

In terms of data queries (SELECT), InnoDB is the clear winner, but when it comes to database writes (INSERT and UPDATE), MyISAM is somewhat faster. However, the lower speed of InnoDB is more than compensated for by its transaction protocol.

How can I use MyISAM instead of InnoDB?

Convert MyISAM to InnoDB with phpMyAdmin

Simply run the ALTER command to convert it to InnoDB storage engine. Note: We always recommend backing up your MySQL database before running any operations on it. ALTER TABLE wp_comments ENGINE=InnoDB; Ensure you are running MySQL 5.6.

What is difference between MyISAM and InnoDB?

The main difference between MyISAM and INNODB are : MyISAM does not support transactions by tables while InnoDB supports. There are no possibility of row-level locking, relational integrity in MyISAM but with InnoDB this is possible. MyISAM has table-level locking.

Should I use InnoDB or MyISAM?

InnoDB can be used for row level locking, that means it gives higher performance as compared to MyISAM. InnoDB can be used for both data and index for a large buffer pool. InnoDB can be used when we need better performance than MyISAM.

How does InnoDB work?

InnoDB tables arrange your data on disk to optimize queries based on primary keys. Each InnoDB table has a primary key index called the clustered index that organizes the data to minimize I/O for primary key lookups. To maintain data integrity, InnoDB supports FOREIGN KEY constraints.

Which database is fastest?

Cameron Purdy, a former Oracle executive and a Java evangelist explains what made NoSQL type database fast compared to relational SQL based databases. According to Purdy, for ad hoc queries, joins, updates, relational databases tend to be faster than “NoSQL type databases” for most use cases.

What is default MySQL engine?

The default engine is InnoDB in MySQL 5.6. You can specify the default engine by using the —default-storage-engine server startup option, or by setting the default-storage-engine option in the my. cnf configuration file.

How many types of engines are there in MySQL?

There are two types of storage engines in MySQL: transactional and non-transactional. For MySQL 5.5 and later, the default storage engine is InnoDB. The default storage engine for MySQL prior to version 5.5 was MyISAM.

What is acid in MySQL?

ACID is an acronym that describes four properties of a robust database system: atomicity, consistency, isolation, and durability. These features are scoped to a transaction, which is a unit of work that the programmer can define.

Which statement is correct a table can have?

A table can have only one primary key.

What is table type in MySQL?

As of MySQL Version 3.23. 6, you can choose between three basic table formats ( ISAM , HEAP and MyISAM . Newer MySQL may support additional table type ( BDB , or InnoDB ), depending on how you compile it.

What are the default tables in MySQL?

Those are: mysql – is the system database that contains tables that store information required by the MySQL server. information_schema – provides access to database metadata. performance_schema – is a feature for monitoring MySQL Server execution at a low level.

What are the data types in MySQL?

In MySQL there are three main data types: string, numeric, and date and time.

What are HEAP tables in MySQL?

A heap table refers to a table created with the MEMORY storage engine. MySQL supports several storage engines that store data in different ways. The MEMORY storage engine does not persist any data to disk; it holds data in RAM. If the MySQL server stops, all data in RAM is lost.

How can I see the tables in a database?

SQL command to list all tables in Oracle
  1. Show all tables owned by the current user: SELECT table_name FROM user_tables; Code language: SQL (Structured Query Language) (sql)
  2. Show all tables in the current database: SELECT table_name FROM dba_tables;
  3. Show all tables that are accessible by the current user:

How can you create a stored procedure in MySQL?

  1. First, specify the name of the stored procedure that you want to create after the CREATE PROCEDURE keywords.
  2. Second, specify a list of comma-separated parameters for the stored procedure in parentheses after the procedure name.
  3. Third, write the code between the BEGIN END block.