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Oracle » DDL » Design » Alter and Renam

Alter a column

     






-- alter a column

alter table ACCOUNT modify ( CUSTOMER_NM varchar2(100));

alter table INVOICE modify ( TOTAL_AMT float null );


-- rename a column

alter table EMPLOYEE rename column SALARY to COMPENSATION ;










Oracle : Related Topics

Oracle : DDL : Creating a table
Oracle : DDL : Creating indexes
Oracle : DDL : Creating constraints
Oracle : DDL : Creating and using a sequence
Oracle : DDL : Synonyms and Database Links
Oracle : DDL : Changing a column's type or name
Oracle : DDL : Partitioned Tables
Oracle : DDL : Creating an index with the nosort option
Oracle : DDL : Oracle data types

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