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How do I drop all the tables?
How to drop all tables in MySQL?
- SET FOREIGN_KEY_CHECKS = 0;
- SELECT table_name FROM information_schema.tables WHERE table_schema = db_name;
- DROP TABLE IF EXISTS table1; DROP TABLE IF EXISTS table2; DROP TABLE IF EXISTS table3;
- SET FOREIGN_KEY_CHECKS = 1;
- echo “SET FOREIGN_KEY_CHECKS = 0;” > ./temp.sql.
How do you drop a table in a database?
To delete a table from the database
- In Object Explorer, select the table you want to delete.
- Right-click the table and choose Delete from the shortcut menu.
- A message box prompts you to confirm the deletion. Click Yes. Deleting a table automatically removes any relationships to it.
What will happen when the following statement is executed drop table table name?
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. SQL Server does not remove these stored procedures and views.
Can a drop table be used to drop a referencing table?
DROP TABLE cannot be used to drop a table that is referenced by a FOREIGN KEY constraint. The referencing FOREIGN KEY constraint or the referencing table must first be dropped. If both the referencing table and the table that holds the primary key are being dropped in the same DROP TABLE statement, the referencing table must be listed first.
How to drop references to parent table in SQL Server?
SQL Server – Drop All References to Parent Table. In SQL Server, you cannot drop a table if it is referenced by a FOREIGN KEY constraint. You have to either drop the child tables before removing the parent table, or remove foreign key constraints. This article provides a Transact- SQL script to drop foreign keys…
How to drop all tables from a database?
Use the INFORMATION_SCHEMA.TABLES view to get the list of tables. Generate Drop scripts in the select statement and drop it using Dynamic SQL: Note: If you have any foreign Keys defined between tables then first run the below query to disable all foreign keys present in your database.
When to use the DROP TABLE statement in SQL?
The SQL DROP TABLE Statement. The DROP TABLE statement is used to drop an existing table in a database.