MySQL DELETE Query - Shikshaglobe

MySQL DELETE Query

The MySQL DELETE statement is used to delete records from a table.The following shows the syntax of the DELETE statement:The MySQL DELETE statement is used to delete records from a table. The WHERE clause is optional. If omitted all records will be deleted.DELETE FROM table_nameThe MySQL DELETE statement is used to delete records from a database table. It can be used to delete one or more records in a single query. The DELETE statement does not remove the table structure it only deletes the data stored in the table. To delete all data from a table you can use the TRUNCATE TABLE statement.The MySQL DELETE statement is used to delete records from a table.The following shows the syntax of the DELETE statement:DELETE is a DML (Data Manipulation Language) command in SQL that allows users to delete data from a database table. In order to delete data from a table the user must have the DELETE privilege on that table. Once the data is deleted it cannot be recovered. The DELETE command can be used in several ways such as:Deleting all rows from a table Deleting specific rows from a table Deleting rows based on certain conditions

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The DELETE query in MySQL is used to delete one or more records from a table. The basic syntax for a DELETE query is as follows:

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DELETE FROM table_name

WHERE condition;

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Here's a breakdown of the different parts of the query:

  • DELETE FROM: This is the beginning of the DELETE query.
  • table_name: This is the name of the table from which you want to delete records.
  • WHERE: This keyword is used to specify the condition that must be met for a record to be deleted. It is optional, but if omitted, all records in the table will be deleted.
  • condition: This is the condition that must be satisfied for a record to be deleted. For example, if you want to delete records where a certain column has a specific value, you would specify the condition using comparison operators such as =, <>, <, >, etc.

Here's an example of a DELETE query that deletes all records from a table named employees where the salary is less than 5000:

DELETE FROM employees

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WHERE salary < 5000;

Please note that the DELETE query is a powerful statement that can permanently remove data from a table, so use it with caution. It's recommended to create a backup of your data before executing DELETE queries.

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