SQL SERVER (4) use sql statement to create, modify, delete database

Create database with CREATE DATABASE statement

CREATE DATABASE <database sentence>

Create a database named "testSQL" and use the following CREATE DATABASE statement:

CREATE DATABASE testSQL

The complete syntax format of the CREATE DATABASE statement is very complicated, with many optional parameters.

Modify database with ALTER DATABASE statement

ALTER DATABASE databasename one by one to modify the database name
{
<add_or_modify_files> one by one to add or modify the database file
<add_ or_modify_filegroups> one by one to add or modify the database file group
<set_database_options> one by one to set the database options
MODIFY NAME = new_ database_name one by one rename
COLLATE collation_name modify the ordering rules one by one
}

• Rename the database named "testSQL" to "SQLTest":

ALTER DATABASE testSQL
       MODIFY NAME= SQLTest
     

• Add a data file named "SQL added data file" to the "SQLTest" database and save it to the SQLtest folder under the D drive:

ALTERnativeDATABASE SQLtest
            ADD FILE (NAME = data file added by SQL,
                     FILENAME = 'D: \ SQLtest \ data file added by SQLTest database.ndf')