July 2002
Beginner
424 pages
9h 30m
English
Content preview from SQL: Visual QuickStart Guide
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Dropping a Table with DROP TABLE
Use the DROP TABLE statement to remove a table from a database. When you’re dropping a table, some important considerations are:
You can drop a base table or a temporary table.
A dropped table is gone forever. You can’t undo or roll back a DROP TABLE statement.
Dropping a table destroys its structure, data, indexes, constraints, permissions, and so on.
Dropping a table isn’t the same as deleting all its rows. You can empty a table of rows, but not destroy it, with DELETE FROM table;. See “Deleting Rows with DELETE” in Chapter 9.
Dropping a table doesn’t drop views that reference that table; see Chapter 12.
You’ll encounter problems with foreign keys or views that reference a dropped table unless they’re altered or ...
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