The SQL DROP TABLE Statement The DROP TABLE statement is used to drop an existing table in a database. Syntax DROP TABLE table_name;

The MySQL DROP TABLE Statement The DROP TABLE statement is used to drop an existing table in a database. Syntax DROP TABLE table_name;

The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.

Delete All Records It is possible to delete all rows in a table without deleting the table. This means that the table structure, attributes, and indexes will be intact. The following SQL statement deletes all …

Note: Be careful when deleting records in a table! Notice the WHERE clause in the DELETE statement. The WHERE clause specifies which record (s) should be deleted. If you omit the WHERE clause, all …

Delete Data From a MySQL Table The SQL DELETE statement is used to delete records from a table: DELETE FROM table_name WHERE some_column = some_value NOTE: The WHERE clause …

However, to be compliant with the ANSI standard, they all support at least the major commands (such as SELECT, UPDATE, DELETE, INSERT, WHERE) in a similar manner. Note: Most of the SQL …

Notice the WHERE clause in the DELETE syntax: The WHERE clause specifies which record (s) that should be deleted. If you omit the WHERE clause, all records will be deleted!

The DROP TABLE Statement The DROP TABLE statement is used to drop an existing table in a database. Note: Be careful before dropping a table. Deleting a table will result in loss of all …

SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, …