SQL DROP INDEX, DROP TABLE, and DROP DATABASE
Indexes, tables, and databases can easily be deleted/removed with the DROP statement.
The DROP INDEX Statement
The DROP INDEX statement is used to delete an index in a table.
DROP INDEX Syntax for MS Access:
| DROP INDEX index_name ON table_name |
DROP INDEX Syntax for MS SQL Server:
| DROP INDEX table_name.index_name |
DROP INDEX Syntax for DB2/Oracle:
DROP INDEX Syntax for MySQL:
| ALTER TABLE table_name DROP INDEX index_name |
The DROP TABLE Statement
The DROP TABLE statement is used to delete a table.
The DROP DATABASE Statement
The DROP DATABASE statement is used to delete a database.
| DROP DATABASE database_name |
The TRUNCATE TABLE Statement
What if we only want to delete the data inside the table, and not the table itself?
Then, use the TRUNCATE TABLE statement:
| TRUNCATE TABLE table_name |
The Altova MissionKit is an integrated suite of tools ideal for:
- XML development
- Web & Web services development
- Data mapping & integration
- Rendering & publishing XML & database data
- XBRL validation, taxonomy editing, transformation & rendering
The MissionKit for XML Developers includes XMLSpy® - the industry-leading XML editor; MapForce® - a
graphical data mapping, conversion, and integration tool; StyleVision® - a visual XSLT stylesheet designer;
DiffDog® - an XML-aware diff/merge tool; and 2 additional tools.
Try all 6 products free for 30 days!
Download a fully-functional free trial
|
|
|
|
