请教完整的创建表的语句。例如SQL Server联机丛书中的建表语句格式：
CREATE TABLE
[ database_name.[ owner ] .| owner.] table_name
( { < column_definition >
| column_name AS computed_column_expression
| < table_constraint > ::= [ CONSTRAINT constraint_name ] } | [ { PRIMARY KEY | UNIQUE } [ ,...n ]
) [ ON { filegroup | DEFAULT } ]
[ TEXTIMAGE_ON { filegroup | DEFAULT } ]在oracle中建表时可否指定表空间？
CREATE TABLE
[ database_name.[ owner ] .| owner.] table_name
( { < column_definition >
| column_name AS computed_column_expression
| < table_constraint > ::= [ CONSTRAINT constraint_name ] } | [ { PRIMARY KEY | UNIQUE } [ ,...n ]
) [ ON { filegroup | DEFAULT } ]
[ TEXTIMAGE_ON { filegroup | DEFAULT } ]在oracle中建表时可否指定表空间？
CREATE TABLE tb(COL1 NUMBER,COL2 CHAR2(2))
TABLESPACE 表空间名;
我在网上没有搜到，Oracle有自带帮助文件吗。