The default output format is like that produced with --batch. See Section 4.2.2.1, “Using Options on the Command Line”, for some examples. With this option, mysql does not use the history file. --force, -f Command-Line Format --force Continue even if an SQL error occurs. --...
Better control over which databases and database objects (tables, stored programs, user accounts) to dump Dumping of user accounts as account-management statements (CREATE USER, GRANT) rather than as inserts into the mysql system database Capability of creating compressed output Progress indicator...
Learn to use MySQL Connector for Java and Python with code examples: MySQL connector is a bridge between MySQL server and programs written in different programming languages like Java, C#, Python, Node JS, etc. The connector is a piece of Software that provides API implementations and offers an...
Let’s practice with following examples to understand more. The first example is a stored procedure to get all offices in a country. Here is the SQL source code: DELIMITER // CREATE PROCEDURE GetOfficeByCountry(IN countryName VARCHAR(255)) BEGIN SELECT city, phone FROM offices WHER...
MySQL client programs generally require that you specify connection parameters when you want to access a MySQL server: the host you want to connect to, your username, and your password. For example, the mysql client can be started like this (optional arguments are enclosed between [ and ]):...
it makes sense to have a UNIQUE constraint on the column with the file path. It also needs sorted indexes for metadata, and that can often be very long (ie, most song and album names are short, but I have examples in the database of titles as large as 133 characters, and imagine wh...
and why those differences are important. We’ll finish with some historical context and benchmarks. We’ve tried to explain MySQL by simplifying the details and showing examples. This discussion will be useful for those new to database servers as well as readers who are experts with other dat...
Examples: mysql> SELECT i FROM t INNER JOIN t AS t2; ERROR 1052 (23000): Column 'i' in field list is ambiguous mysql> SELECT * FROM t LEFT JOIN t AS t2 ON i = i; ERROR 1052 (23000): Column 'i' in on clause is ambiguous Resolution: • Qualify the column with the ...
Variables using the syntax $variable_name can be declared and used with these functions when they are called inside stored programs. Such variables are local to the stored program in which they are defined, and are strongly checked for type and value. Example: mysql> DELIMITER | mysql> CRE...
Along with the changes to INFORMATION_SCHEMA tables, output from any corresponding SHOW statements now displays DEFINER values up to 93 characters. Examples of affected statements: SHOW EVENTS, SHOW TRIGGERS, SHOW PROCEDURE STATUS. If you upgrade to this MySQL release from an earlier version, you...