This document provides an overview of some of the key differences between SQL Server and Oracle databases. It discusses differences in syntax for common SQL statements like joins, subqueries, deletes and data types. It also covers conceptual differences like the connect concept in Oracle and powerful new features in Oracle like regular expressions. The document is intended as a light introduction for SQL Server users moving to Oracle.

1. Beginning SQL: Differences Between SQL Server and Oracle Les Kopari Independent Consultant A Quick Intro for SQL Server Users

4. Don’t Use Databases SQL Server use mydatabase Oracle connect mydatabase/mypassword

5. Use Dual SQL Server Oracle select getdate(); select sysdate from dual;

6. Select Into SQL Server Oracle select getdate() mycolumn into mytable; insert into mytable (mycolumn) values(sysdate);

7. Inserts SQL Server Oracle Insert mytable values(‘more text’); Insert into mytable values(‘more text’);

10. Deletes SQL Server delete mytable where mycolumn like 'some%'; Oracle delete from mytable where mycolumn like 'some%';

20. Other Conceptual Differences SQL Server Database owner, DBO Group/Role Non-unique index T-SQL stored procedure { Trigger Compex rule Column identity property Oracle Schema Role Index PL/SQL procedure PL/SQL function BEFORE trigger After trigger Sequence