Sqlcreatedatabase create database Command

The createdatabase command is the most basic thing for beginners to get started with databases. Without it, you won't be able to continue learning. Why don't I leave it alone? Now let's take a look at the syntax of this command.

The create database Command is the most basic thing for beginners to get started with the database. Without it, you cannot go on to learn why I will not talk about it. Now, let's take a look at the syntax of this command.

The complete create database Command syntax is as follows:

The Code is as follows:

Create database database_name [ON {[PRIMARY] [ [,... N] [, [,... N] [Log on { [,... N]} ] [COLLATE collation_name] [ ] ] [;] To attach a database Create database database_name ON [,... N] FOR {ATTACH [ ] | ATTACH_REBUILD_LOG} [;] : = { ( NAME = logical_file_name, FILENAME = {'OS _ file_name' | 'filestream _ path '} [, SIZE = size [KB | MB | GB | TB] [, MAXSIZE = {max_size [KB | MB | GB | TB] | UNLIMITED}] [, FILEGROWTH = growth_increment [KB | MB | GB | TB | %] ) [,... N] } : = { FILEGROUP filegroup_name [contains filestream] [DEFAULT] [,... N] } : = { [DB_CHAINING {ON | OFF}] [, TRUSTWORTHY {ON | OFF}] } : = { ENABLE_BROKER | NEW_BROKER | ERROR_BROKER_CONVERSATIONS } Create a database snhot Create database database_snapshot_name ON ( NAME = logical_file_name, FILENAME = 'OS _ file_name' ) [,... N] As snapshot of source_database_name [;]

Instance

The Code is as follows:
Create database temporary ON (NAME = 'temporary _ data ', FILENAME = 'H: temporary. mdf ', SIZE = 5 MB, MAXSIZE = 50 MB, FILEGROWTH = 10% ) LOG ON ( NAME = 'temporary _ log ', FILENAME = 'H: temporary. ldf ', SIZE = 2 MB, MAXSIZE = 5 MB, FILEGROWTH = 1 MB )

In fact, we only use some basic creation functions.

Database_name
The name of the new database. The database name must be unique in the SQL Server instance and comply with the identifier rules.

Unless the logical name is not specified for the log file, database_name can contain a maximum of 128 characters. If the logical log file name is not specified, SQL Server will append the suffix to database_name to generate logical_file_name and OS _file_name for the log. This limits database_name to 123 characters, so that the name of the generated logical file cannot exceed 128 characters.

If no data file name is specified, SQL Server uses database_name as logical_file_name and OS _file_name. The default path is obtained from the registry. You can use "server properties" ("database Settings" Page) in Management Studio to change the default path. To change the default path, restart SQL Server.

In fact, we can create databases more conveniently, such

The Code is as follows:
Crate database 111cn.net

If the reference system is not specified, it will be under your sqldata directory by default.