MYSQL – ALTER, DROP, RENAME, MODIFY - Shikshaglobe

The ALTER statement is used to modify an existing database object such as a table index or view.DROP: The DROP statement is used to delete an existing database object such as a table index or view.RENAME: The RENAME statement is used to change the name of an existing database object such as a table index or view.MODIFY: The MODIFY statement is used to change the attributes of an existing database object such as a table index or view.MYSQL is a free and open source relational database management system. It is the world's most popular database with over 100 million installations. MYSQL isused by many large websites including Facebook Twitter and YouTube.ALTER DROP RENAME MODIFY are all SQL commands that can be used to modify a database table. These commands can be used to change the name of a table add or remove columns or change the data type of a column.MySQL is a powerful database management system used by millions of websites and applications. It offers a wide range of features including a robust SQL syntax support for multiple storage engines and robust security features. One of the most useful features of MySQL is the ability to modify existing databases using the ALTER DROP RENAME and MODIFY commands.The ALTER command is used to modify an existing database. For example you can use ALTER to add or remove columns from a table or to change the data type of a column.The DROP command is used to delete an entire database or individual tables within a database. This is a useful command if you need to start over from scratch with your data.The RENAME command is used to rename an existing database or table. This can be helpful if you want to change the name of your website or application.The MODIFY command is used to change the structureMySQL is a free open source database management system. It is a popular choice for web applications and is also used by many large organizations such as Facebook Twitter and YouTube. MySQL is written in C and C++.MySQL uses a relational database model. This means that data is organized into tables and each table has a unique key that can be used to identify each row in the table. Tables can be linked together using foreign keys which allows data from multiple tables to be queried in a single statement.MySQL supports multiple storage engines which allows it to be used for a variety of applications. The most common storage engine is the MyISAM engine which is used for most websites. Other storage engines include the InnoDB engine which is used for high-performance transactional applications and the memory-based MEMORY engine.MySQL can be run on a variety of operating systems including Windows Linux MYSQL is a powerful database management system used by millions of websites and applications. It offers a wide range of features including a powerful query language transaction support and a robust set of tools for managing databases One of the most useful features of MYSQL is its ability to modify existing databases. This can be done using the ALTER DROP RENAME and MODIFY commands.The ALTER command can be used to add remove or modify columns in a database table. The DROP command can be used to delete a database table entirely. The RENAME command can be used to change the name of a database table. And the MODIFY command can be used to change the data type of a column in a database table.Each of these commands has a wide range of options and capabilities that make MYSQL one of the most flexible and powerful database management systems available.MYSQL – ALTER DROP RENAME MODIFY are the four main commands used to manage databases.ALTER is used to modify an existing database or table.DROP is used to delete a database or table.RENAME is used to rename a database or table.MODIFY is used to change the structure of a database or table.


Tags:

mysql – alter, drop, rename, modifymysql – alter drop rename modify a columnmysql – alter drop rename modify allmysql – alter drop rename modify all tablesmysql – alter drop rename modify aliasmysql – alter drop rename modify branchmysql – alter drop rename modify beanmysql – alter drop rename modify by idmysql – alter drop rename modify by namemysql – alter drop rename modify columnmysql – alter drop rename modify column namemysql – alter drop rename modify datamysql – alter drop rename modify datemysql – alter drop rename modify databasemysql – alter drop rename modify defaultmysql – alter drop rename modify default valuemysql – alter drop rename modify existing tablemysql – alter drop rename modify examplemysql – alter drop rename modify existsmysql – alter drop rename modify existing filemysql – alter drop rename modify filemysql – alter drop rename modify fieldmysql – alter drop rename modify file namemysql – alter drop rename modify field namemysql – alter drop rename modify groupmysql – alter drop rename modify gitmysql – alter drop rename modify generalmysql – alter drop rename modify groovymysql – alter drop rename modify headermysql – alter drop rename modify headmysql – alter drop rename modify hostnamemysql – alter drop rename modify header filemysql – alter drop rename modify idmysql – alter drop rename modify indexmysql – alter drop rename modify inmysql – alter drop rename modify in tablemysql – alter drop rename modify in oraclemysql – alter drop rename modify jsonmysql – alter drop rename modify jobmysql – alter drop rename modify joinmysql – alter drop rename modify jointmysql – alter drop rename modify javamysql – alter drop rename modify keymysql – alter drop rename modify key existsmysql – alter drop rename modify keywordmysql – alter drop rename modify limitmysql – alter drop rename modify localmysql – alter drop rename modify logmysql – alter drop rename modify memorymysql – alter drop rename modify multiple columnsmysql – alter drop rename modify modemysql – alter drop rename modify namemysql – alter drop rename modify not workingmysql – alter drop rename modify nullmysql – alter drop rename modify numbermysql – alter drop rename modify not foundmysql – alter drop rename modify ordermysql – alter drop rename modify outputmysql – alter drop rename modify one columnmysql – alter drop rename modify onlymysql – alter drop rename modify pathmysql – alter drop rename modify partitionmysql – alter drop rename modify propertymysql – alter drop rename modify packagemysql – alter drop rename modify postgresqlmysql – alter drop rename modify querymysql – alter drop rename modify queuemysql – alter drop rename modify recordmysql – alter drop rename modify rulesmysql – alter drop rename modify rowmysql – alter drop rename modify rolemysql – alter drop rename modify statementmysql – alter drop rename modify schemamysql – alter drop rename modify statemysql – alter drop rename modify syntaxmysql – alter drop rename modify tablemysql – alter drop rename modify table namemysql – alter drop rename modify tablespacemysql – alter drop rename modify usermysql – alter drop rename modify updatemysql – alter drop rename modify unique constraintmysql – alter drop rename modify uniquemysql – alter drop rename modify videomysql – alter drop rename modify video filemysql – alter drop rename modify with column namemysql – alter drop rename modify with namemysql – alter drop rename modify without losing datamysql – alter drop rename modify xmlmysql – alter drop rename modify xml filemysql – alter drop rename modify xamppmysql – alter drop rename modify yearmysql – alter drop rename modify yaml filemysql – alter drop rename modify yamlmysql – alter drop rename modify your namemysql – alter drop rename modify zeromysql – alter drop rename modify zip filemysql – alter drop rename modify zipmysql – alter drop rename modify zeros