How to Use DROP Command in SQL It is important to note that DROP Command might be used syntactically differently on different SQL-supported platforms, such as Microsoft SQL Server, Oracle SQL, MySQL, and so on.
This article discusses the“DROP IF EXISTS”statement available in SQL Server 2016 and later versions.“IF EXITS”is the latest optional clause added in the existing DROP statement in SQL Server 2016 and later versions. Essentially, the“DROP IF EXISTS”option is used when it is necessary to c...
If you want to remove an existing table from a database, use the statement DROP TABLE with the name of the table. In this example, we first wrote the command DROP TABLE followed by the table name product. That’s all you need to do. This command removes the table’s data, the table...
How to use SQL Alter Command with Examples? To understand the ALTER command operations, let us consider the below table ‘EMPLOYEE’ as an example. The table ‘EMPLOYEE’ is already created, and with the use of Alter command, many modifications such as adding the column, renaming a column, ...
How to Alter Table In SQL? We use the ALTER table statement to modify the columns which exist in the tables currently. Also, with this same statement, we can drop or add different constraints to the table. Below is the syntax to add a new column to the existing table: ...
In SQL Server 2016, Microsoft introduced DIY or DROP IF EXISTS functionality. By adding IF EXISTS to the drop statement, you can drop the object only when it exists in the database. You can use DROP IF EXISTS to drop any temporary table as well if it exists. Let’s see how to use ...
An introduction to the create table, alter table, and drop table commands in Oracle Database. Use these to create, change, and remove database tables.
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In rare situations like database level permission issues, you may need to drop all the tables from a SQL Server database and recreate them.
To revert the database, use the following Transact-SQL statement: RESTORE DATABASE <database_name> FROM DATABASE_SNAPSHOT =<database_snapshot_name> Where <database_name> is the source database and <database_snapshot_name> is the name of the snapshot to which you want to revert the ...