What is the syntax of CREATE TABLE in Oracle? Since the syntax of CREATE TABLE statement can be very flexible and complicated, so using text-based… Read More »Create Table SQL Statement
How to create a table in Oracle step by step? To create a new table, we can choose to compose a hand-writing PL/SQL statement which… Read More »Toad Create Table Example
ORA-12991: column is referenced in a multi-column constraint ORA-12991 means that the column you want to drop is bound to some multi-column constraints. You must… Read More »How to Resolve ORA-12991 Error Message
Modify Primary Key Sometimes, developers may design a better primary key to support the uniqueness of a table and they want to replace the current… Read More »How to Alter Primary Key in Oracle