ATTENTION: XML WEB PAGES NOT SUPPORTED If you see this message, your current browser does not support the 1999 XSLT 1.0 (or later) standard for XML web pages such as this one. Please upgrade your browser to a newer version that supports 1999 or later standards such as: Mozilla Firefox version 1.0.2 or later (GetFirefox -> http://www.GetFirefox.com/) Netscape version 8 or later Safari version 1.3 or later Opera version 9 or later Microsoft Internet Explorer (MSIE) version 5 or later For further assistance, contact the software vendor for your browser. To go to the XHTML version of this page click the following link: index.html

 

 /computers/databases/oracle/ How To Guides How To Guides How To Guides How To Guides Business Computers Databases Internet Mobile Money Movies Operating Systems Computers Databases Design Tuning Apache Derby IBM DB2 MySQL Oracle SQL Server
Oracle DDL Examples of how to use Oracle SQL Data Description Language. SQL Create Tablespace Drop DataFile Create Schema Create User Create Role Create Sequence Create Table Oracle

Oracle DDL

Create Table define schema='schema_name' create table &schema..tblname ( col1name number constraint tblname_1_nn not null, col2name char(n) constraint tblname_2_nn not null, col3name varchar2(n) constraint tblname_3_nn not null, constraint tblname_0_pk primary key (col1name) using index tablespace index_tspname​ pctfree 5 initrans 1 maxtrans 255 storage ( initial 1k minextents 1 maxextents unlimited ) ) tablespace data_tspname​ pctfree 5 initrans 1 maxtrans 255 storage ( initial 4k minextents 1 maxextents unlimited ); grant select, insert, update, delete on &schema..tblname​ to rolename1, rolename2;

Oracle stores columns of CHAR type with a length field, the same as for variable length columns, so unlike other DBMSes, there is no advantage in space usage to using fixed-length CHAR rather than variable length. However, since comparison of fixed-length CHAR columns will provide for automatic padding the data type of Oracle columns should be either CHAR or VARCHAR2, as deemed appropriate for the data being stored in the column.

Wednesday March 7, 2007
Copyright © 2006 How To Guides .com. Alteration of content, including addition of any function such as hypertext links or pop-up advertising, or interference with the hypertext links or other functions of this site is expressly prohibited. All information, links, forms, applications and other items on this site or obtained from it are provided AS IS, WITHOUT WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.