Search results
In oracle, to drop all tables and constraints you would type something like DROP TABLE myTable CASCADE CONSTRAINTS PURGE; and this would completely delete the tables and their dependencies. What'...
Introduction to Oracle DROP TABLE statement. To move a table to the recycle bin or remove it entirely from the database, you use the DROP TABLE statement: DROP TABLE schema_name.table_name [CASCADE CONSTRAINTS | PURGE]; Code language: SQL (Structured Query Language) (sql) In this statement:
How do I alter the table definitions to perform cascading delete in SQL Server when a record from T1 is deleted, all associated records in T2 also deleted. The foreign constraint is in place between them. I don't want to drop the tables or create a trigger to do the deletion for T2.
23 maj 2023 · Removes one or more table definitions and all data, indexes, triggers, constraints, and permission specifications for those tables. Any view or stored procedure that references the dropped table must be explicitly dropped by using DROP VIEW or DROP PROCEDURE. To report the dependencies on a table, use sys.dm_sql_referencing_entities.
Use the DROP TABLE statement to delete a table with data from the database. Syntax: DROP TABLE table_name. The following command will delete the Employee table in the SQL Server, Oracle, SQLite, PostgreSQL, MySQL database. SQL Script: Delete a Table. DROP TABLE Employee; DROP Table with Cascade Constraints in Oracle.
26 wrz 2024 · DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is referenced by a view or a foreign-key constraint of another table, CASCADE must be specified.
7 paź 2015 · Automatically truncate all tables that have foreign-key references to any of the named tables, or to any tables added to the group due to CASCADE. CASCADE will remove a dependent view entirely, but in the foreign-key case it will only remove the foreign-key constraint, not the other table entirely.
