The DROP TRIGGER statement removes a trigger created by the CREATE TRIGGER statement. Once removed, the trigger definition is no longer present in the sqlite_schema (or sqlite_temp_schema) table and is not fired by any subsequent INSERT, UPDATE or DELETE statements ... 

The DROP INDEX statement removes an index added with the CREATE INDEX statement. The index is completely removed from the disk. The only way to recover the index is to reenter the appropriate CREATE INDEX command.

The DROP VIEW statement removes a view created by the CREATE VIEW statement. The view definition is removed from the database schema, but no actual data in the underlying base tables is modified. The view to drop is identified by ... 

The DROP TABLE statement removes a table added with the CREATE TABLE statement. The name specified is the table name. The dropped table is completely removed from the database schema and the disk file. The table can not be recovered ... 

 ... The syntax of the DROP TABLE, DROP INDEX, DROP VIEW, DROP TRIGGER, REINDEX, ALTER TABLE and many other commands all permit the user to specify a database object either by its name alone, or by a combination of its name ... 

 ... stmt create-virtual-table-stmt cte-table-name delete-stmt delete-stmt-limited detach-stmt drop-index-stmt drop-table-stmt drop-trigger-stmt drop-view-stmt expr factored-select-stmt filter-clause foreign-key-clause frame-spec function-arguments ... 

 ... aggregate functions ALTER TABLE ANALYZE ATTACH DATABASE BEGIN TRANSACTION comment COMMIT TRANSACTION core functions CREATE INDEX CREATE TABLE CREATE TRIGGER CREATE VIEW CREATE VIRTUAL TABLE date and time functions DELETE DETACH DATABASE DROP INDEX DROP TABLE DROP TRIGGER DROP VIEW ... 

 ... ALTER TABLE DROP COLUMN The DROP COLUMN syntax is used to remove an existing column from a table. The DROP COLUMN command removes the named column from the table, and rewrites its content to purge the data associated with that ... 

sqlite3_unlock_notify()

 ... The "DROP TABLE" Exception When a call to sqlite3_step() returns SQLITE_LOCKED, it is almost always appropriate to call sqlite3_unlock_notify(). There is however, one exception. When executing a "DROP TABLE" or "DROP INDEX" statement, SQLite checks if there are any currently ... 

 ... A virtual table is destroyed using the ordinary DROP TABLE statement. There is no DROP VIRTUAL TABLE statement.