Yahoo India Web Search

Search results

  1. The DROP COLUMN command is used to delete a column in an existing table. The following SQL deletes the "ContactName" column from the "Customers" table: Example. ALTER TABLE Customers. DROP COLUMN ContactName; DROP a UNIQUE Constraint. To drop a UNIQUE constraint, use the following SQL: SQL Server / Oracle / MS Access: ALTER TABLE Persons.

    • What Is Drop command?
    • What Is Truncate command?
    • SQL Drop and Truncate Statement Examples

    DROP command in SQLis used to delete a whole database or a table. DROP statement deletes objects like an existing database, table, index, or view.

    TRUNCATE statementis a Data Definition Language (DDL) operationthat is used to mark the extent of a table for deallocation (empty for reuse). The result of this operation quickly removes all data from a table, typically bypassing several integrity-enforcing mechanisms. It was officially introduced in the SQL:2008 standard. The TRUNCATE TABLE statem...

    Let’s look at some examples of the DROP and TRUNCATE statements in SQL and understand their working: let’s consider the given database Student_data: To create this table, write the following queries: We will perform the examples on this particular table.

    • 10 min
  2. SQL DROP TABLE Statement. In SQL, DROP TABLE is used to delete the tables in our database. Example. -- delete Shippings table DROP TABLE Shippings; Run Code. Here, the SQL command will delete a table named Shippings. Also, make sure you have admin or DROP permission to run this command.

  3. This tutorial shows you step by step how to use the SQL DROP TABLE statement to remove one or more tables from a database

  4. Apr 30, 2024 · The SQL DROP command can remove the database that means this command will remove all the tables, views, index tables and all other objects related to that database. Syntax: DROP DATABASE [database name];

  5. Jul 16, 2019 · This article gives an overview of the SQL DROP TABLE statement to remove one or more tables from a database. In my earlier article, Difference between SQL Truncate and SQL Delete statements in SQL Server, we explored to delete data from an existing data. We might delete whole data using both SQL Delete and SQL Truncate statements.

  6. People also ask

  7. Jagdeesh. Let’s deep dive into one of SQL’s essential commands – DROP TABLE. What is the DROP TABLE Command? The DROP TABLE command in SQL is a Data Definition Language (DDL) statement used to remove a table definition along with all the data, indexes, triggers, constraints, and permission specifications for that table.