Discard Table Statement Of Work For Free

If a VIEW, by definition of a view, is a subset of that which is in the database (whether on one or more tables), then if you drop even one of those tables then then VIEW becomes invalid. Therefore according to database logic such a View cannot exist. (All the data in that table is 'destroyed' on dropping).

DROP TABLE removes tables from the database. Only the table owner, the schema owner, and superuser can drop a table. To empty a table of rows without destroying the table, use DELETE or TRUNCATE . DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table.

We use the SQL DROP Table command to drop a table from the database. It completely removes the table structure and associated indexes, statistics, permissions, triggers and constraints. You might have SQL Views and Stored procedures referencing to the SQL table.

You cannot roll back a DROP TABLE statement. Note: For an external table, this statement removes only the table metadata in the database.

If a VIEW, by definition of a view, is a subset of that which is in the database (whether on one or more tables), then if you drop even one of those tables then then VIEW becomes invalid. Therefore according to database logic such a View cannot exist. (All the data in that table is 'destroyed' on dropping).

Uninstalling a program from a device often deletes some files and leaves behind other files that aren't removed.

SQL DELETE Statement DELETE FROM tablename WHERE condition; Example. DELETE FROM Customers WHERE CustomerName='Alfreds Futterkiste'; DELETE FROM tablename; Example. DELETE FROM Customers;

Using a delete query To create a delete query, click the Create tab, in the Queries group, click Query Design. Double-click each table from which you want to delete records, and then click Close. The table appears as a window in the upper section of the query design grid.

Question: Does the SQL View exist if the table is dropped from the database? Yes, in Oracle, the SQL VIEW continues to exist even after one of the tables (that the SQL VIEW is based on) is dropped from the database.

In the database structured query language (SQL), the DELETE statement removes one or more records from a table. A subset may be defined for deletion using a condition, otherwise all records are removed.