FirebirdSQL logo
  • Anglaiskeyboard_arrow_down

Creating A Database

To create a database interactively using the isql command shell, open a command prompt in Firebird’s bin subdirectory and type isql (Windows) or ./isql (Linux):

$ isql
Use CONNECT or CREATE DATABASE to specify a database

To create a database named monkey.fdb and store it in a directory named test on your C:-drive:

SQL>CREATE DATABASE 'C:\test\monkey.fdb' page_size 8192
CON>user SYSDBA password 'masterkey';

For the full syntax of CREATE DATABASE, refer to the Language Reference of your Firebird version.For example, the Firebird 5.0 Language Reference section on CREATE DATABASE.

Note

In the CREATE DATABASE statement it is mandatory to place quote characters (single or double) around path and password.In Firebird 2.5 and earlier, it is also required to do this for usernames.Since Firebird 3.0, usernames enclosed in double quotes (‘"’) are case-sensitive, just like other delimited identifiers in Firebird.

When running Classic Server on Linux, or when using Firebird 3.0 or higher, if the database does not start with a host name, the database file will be created with the current user as the file owner.This may cause access denied errors for others who may want to connect at a later stage.By prepending the localhost: to the path, or xnet:// on Windows, the user running the server process (e.g. on Linux, user firebird) will create and own the file.

To test the newly created database type:

SQL>SELECT RDB$RELATION_ID FROM RDB$DATABASE;

RDB$RELATION_ID
===============
128

SQL> commit;

To get back to the command prompt type quit or exit.

Note

The above technique, as demonstrated, works, but ideally databases and metadata objects should be created and maintained using data definition scripts.